C interview questions and answers


C interview questions and answers for freshers. It is basic c language technical frequently asked interview questions and answers. It includes data structures, pointers interview questions and answers for experienced
Interview questions and answer of C with explanation for fresher

1
Write a c program to print Hello world without using any semicolon.
Answer
Explanation:
Solution: 1
void main(){
    if(printf("Hello world")){
    }
}

Solution: 2
void main(){
    while(!printf("Hello world")){
    }
}

Solution: 3
void main(){
    switch(printf("Hello world")){
    }
}

2
Swap two variables without using third variable.
Answer
Explanation:
#include<stdio.h>
int main(){
    int a=5,b=10;
//process one
    a=b+a;
    b=a-b;
    a=a-b;
    printf("a= %d  b=  %d",a,b);

//process two
    a=5;
    b=10;
    a=a+b-(b=a);
    printf("\na= %d  b=  %d",a,b);
//process three
    a=5;
    b=10;
    a=a^b;
    b=a^b;
    a=b^a;
    printf("\na= %d  b=  %d",a,b);
   
//process four
    a=5;
    b=10;
    a=b-~a-1;
    b=a+~b+1;
    a=a+~b+1;
    printf("\na= %d  b=  %d",a,b);
   
//process five
    a=5,
    b=10;
    a=b+a,b=a-b,a=a-b;
    printf("\na= %d  b=  %d",a,b);
    return 0;
}

3
What is dangling pointer in c? 
Answer
Explanation:
Dangling pointer:

If any pointer is pointing the memory address of any variable but after some variable has deleted from that memory location while pointer is still pointing such memory location. Such pointer is known as dangling pointer and this problem is known as dangling pointer problem.

Initially:

Later:
For example:

What will be output of following c program?

#include<stdio.h>

int *call();
int main(){

int *ptr;
ptr=call();

fflush(stdin);
printf("%d",*ptr);
return 0;
}
int * call(){

int x=25;
++x;

return &x;
}

Output: Garbage value
Note: In some compiler you may get warning message returning address of local variable or temporary

Explanation: variable x is local variable. Its scope and lifetime is within the function call hence after returning address of x variable x became dead and pointer is still pointing ptr is still pointing to that location.

Solution of this problem: 
Make the variable x is as static variable. In other word we can say a pointer whose pointing object has been deleted is called dangling pointer.

#include<stdio.h>

int *call();
int main(){
int *ptr;
ptr=call();

fflush(stdin);
printf("%d",*ptr);
return 0;
}
int * call(){

static int x=25;
++x;

return &x;
}

Output: 26

4
What is wild pointer in c?  
Answer
Explanation:
A pointer in c which has not been initialized is known as wild pointer.

Example:

What will be output of following c program?

int main(){
int *ptr;
printf("%u\n",ptr);
printf("%d",*ptr);
return 0;
}

Output: Any address
Garbage value

Here ptr is wild pointer because it has not been initialized. There is difference between the NULL pointer and wild pointer. Null pointer points the base address of segment while wild pointer doesn’t point any specific memory location.

5
What are merits and demerits of array in c?
Answer
Explanation:
Merits:

(a) We can easily access each element of array.
(b) Not necessity to declare too many variables.
(c) Array elements are stored in continuous memory location.

Demerit:

(a) Wastage of memory space. We cannot change size of array at the run time. 
(b) It can store only similar type of data.

6
Do you know memory representation of int a = 7 ?   
Answer
Explanation:
Memory representation of:

signed int a=7;         (In Turbo c compiler)
signed short int a=7 (Both turbo c and Linux gcc compiler)

Binary equivalent of data 7 in 16 bit:  00000000 00000111
Data bit: 0000000 00000111 (Take first 15 bit form right side)

Sign bit: 0 (Take leftmost one bit)

First eight bit of data bit from right side i.e. 00000111 will store in the leftmost byte from right to left side and rest seven bit of data bit i.e. 0000000 will store in rightmost byte from right to left side as shown in the following figure:   




7
What is and why array in c?
Answer
Explanation:
An array is derived data type in c programming language which can store similar type of data in continuous memory location. Data may be primitive type (int, char, float, double…), address of union, structure, pointer, function or another array.
Example of array declaration:

int arr[5];
char arr[5];
float arr[5];
long double arr[5];
char * arr[5];
int (arr[])();
double ** arr[5];

Array is useful when:

(a) We have to store large number of data of similar type. If we have large number of similar kind of variable then it is very difficult to remember name of all variables and write the program. For example:

//PROCESS ONE
int main(){
    int ax=1;
    int b=2;
    int cg=5;
    int dff=7;
    int am=8;
    int raja=0;
    int rani=11;
    int xxx=5;
    int yyy=90;
    int p;
    int q;
    int r;
    int avg;
    avg=(ax+b+cg+dff+am+raja+rani+xxx+yyy+p+q+r)/12;
    printf("%d",avg);
    return 0;
}
If we will use array then above program can be written as:

//PROCESS TWO
int main(){
    int arr[]={1,2,5,7,8,0,11,5,50};
    int i,avg;
    for(int i=0;i<12;i++){
         avg=avg+arr[i];
    }
printf("%d",avg/12);
return 0;
}

Question: Write a C program to find out average of 200 integer number using process one and two.

(b) We want to store large number of data in continuous memory location. Array always stores data in continuous memory location.

What will be output when you will execute the following program?

int main(){
int arr[]={0,10,20,30,40};
    char *ptr=arr;
    arr=arr+2;
    printf("%d",*arr);
    return 0;
}

Advantage of using array:

1. An array provides singe name .So it easy to remember the name of all element of an array.
2. Array name gives base address of an array .So with the help increment operator we can visit one by one all the element of an array.
3. Array has many application data structure.

Array of pointers in c:

Array whose content is address of another variable is known as array pointers.  For example:

int main(){
float a=0.0f,b=1.0f,c=2.0f;
float * arr[]={&a,&b,&c};
    b=a+c;
printf("%f",arr[1]);
    return 0;
}

8
Why we use do-while loop in c? Also tell any properties which you know?  
Answer
Explanation:
It is also called as post tested loop. It is used when it is necessary to execute the loop at least one time. Syntax:

do {
Loop body
} while (Expression);

Example:

int main(){
    int num,i=0;
   
    do{
         printf("To enter press 1\n");
         printf("To exit press  2");
         scanf("%d",&num);
         ++i;
         switch(num){
             case 1:printf("You are welcome\n");break;
             default : exit(0);
         }
    }
    while(i<=10);
    return 0;
}

Output: 3 3 4 4

If there is only one statement in the loop body then braces is optional. For example:

(a)
int main(){
    double i=5.5678;
    do
         printf("hi");
    while(!i);
    return 0;
}

Output: 3 3 4 4

(b)
int main(){
    double i=5.63333;
    do
         printf("hi");
    while(!i);
    return 0;
}

Output: hi

(c)
int main(){
     int x=25,y=1;
     do
       if(x>5)
         printf(" ONE");
       else if(x>10)
         printf(" TWO");
       else if(x==25)
         printf(" THREE");
       else
         printf(" FOUR");
       while(y--);
return 0;
}

Output: ONE ONE

9
What is the meaning of prototype of a function?   
Answer
Explanation:
Prototype of a function

Declaration of function is known as prototype of a function. Prototype of a function means

(1) What is return type of function?
(2) What parameters are we passing?
(3) For example prototype of printf function is:

int printf(const char *, …);

I.e. its return type is int data type, its first parameter constant character pointer and second parameter is ellipsis i.e. variable number of arguments.

10
Write a c program to modify the constant variable in c?
Answer
Explanation:
You can modify constant variable with the help of pointers. For example:

#include<stdio.h>
int main(){
    int i=10;
    int *ptr=&i;
    *ptr=(int *)20;
    printf("%d",i);
    return 0;
}

Output: 20 

11
What is pointer to a function?  
Answer
Explanation:
(1) What will be output if you will execute following code?
int * function();
int main(){
auto int *x;
int *(*ptr)();
ptr=&function;
x=(*ptr)();
printf("%d",*x);
}
int *function(){
static int a=10;
return &a;
}

Output: 10
Explanation: Here function is function whose parameter is void data type and return type is pointer to int data type.

x=(*ptr)()
=> x=(*&functyion)() //ptr=&function
=> x=function() //From rule *&p=p
=> x=&a
So, *x = *&a = a =10

(2) What will be output if you will execute following code?

int find(char);
int(*function())(char);
int main(){
int x;
int(*ptr)(char);
ptr=function();
x=(*ptr)('A');
printf("%d",x);
return 0;
}
int find(char c){
return c;
}
int(*function())(char){
return find;
}

Output: 65
Explanation: Here function whose name is function which passing void data type and returning another function whose parameter is char data type and return type is int data type.

x=(*ptr)(‘A’)
=> x= (*function ()) (‘A’) //ptr=function ()
//&find=function () i.e. return type of function ()
=> x= (* &find) (‘A’)
=> x= find (‘A’) //From rule*&p=p
=> x= 65

(3) What will be output if you will execute following code?

char * call(int *,float *);
int main(){
char *string;
int a=2;
float b=2.0l;
char *(*ptr)(int*,float *);
ptr=&call;
string=(*ptr)(&a,&b);
printf("%s",string);
return 0;
}
char *call(int *i,float *j){
static char *str="c-pointer.blogspot.com";
str=str+*i+(int)(*j);
return str;
}

Output: inter.blogspot.com
Explanation: Here call is function whose return type is pointer to character and one parameter is pointer to int data type and second parameter is pointer to float data type and ptr is pointer to such function.
str= str+*i+ (int) (*j)
=”c-pointer.blogspot.com” + *&a+ (int) (*&b)
//i=&a, j=&b
=”c-pointer.blogspot.com” + a+ (int) (b)
=”c-pointer.blogspot.com” +2 + (int) (2.0)
=”c-pointer.blogspot.com” +4
=”inter.blogspot.com”

(4) What will be output if you will execute following code?

char far * display(char far*);
int main(){
char far* string="cquestionbank.blogspot.com";
char far *(*ptr)(char far *);
ptr=&display;
string=(*ptr)(string);
printf("%s",string);
}
char far *display(char far * str){
char far * temp=str;
temp=temp+13;
*temp='\0';
return str;
}

Output: cquestionbak
Explanation: Here display is function whose parameter is pointer to character and return type is also pointer to character and ptr is its pointer.

temp is char pointer
temp=temp+13
temp=’\0’

Above two lines replaces first dot character by null character of string of variable string i.e.
"cquestionbank\0blogspot.com"

As we know %s print the character of stream up to null character.

12
Write a c program to find size of structure without using sizeof operator? 
Answer
Explanation:
struct  ABC{
    int a;
    float b;
    char c;
};
int main(){
    struct ABC *ptr=(struct ABC *)0;
    ptr++;
    printf("Size of structure is: %d",*ptr);
    return 0;
}

13
What is NULL pointer?  
Answer
Explanation:
Literal meaning of NULL pointer is a pointer which is pointing to nothing. NULL pointer points the base address of segment.

Examples of NULL pointer:

1. int *ptr=(char *)0;
2. float *ptr=(float *)0;
3. char *ptr=(char *)0;
4. double *ptr=(double *)0;
5. char *ptr=’\0’;
6. int *ptr=NULL;

What is meaning of NULL?
Answer:

NULL is macro constant which has been defined in the heard file stdio.h, alloc.h, mem.h, stddef.h and stdlib.h as
#define NULL 0

Examples:

(1)What will be output of following c program?

#include "stdio.h"
int main(){
if(!NULL)
printf("I know preprocessor");
else
printf("I don't know preprocessor");
}

Output: I know preprocessor

Explanation:
!NULL = !0 = 1
In if condition any non zero number mean true.

(2)What will be output of following c program?

#include "stdio.h"
int main(){
int i;
static int count;
for(i=NULL;i<=5;){
count++;
i+=2;
}
printf("%d",count);
}

Output: 3

(3)What will be output of following c program?

#include "stdio.h"
int main(){
#ifndef NULL
#define NULL 5
#endif
printf("%d",NULL+sizeof(NULL));
}

Output: 2
Explanation:
NULL + sizeof(NULL)
=0 + sizeoof(0)
=0+2 //size of int data type is two byte.

We cannot copy anything in the NULL pointer.

Example:

(4)What will be output of following c program?

#include "string.h"
int main(){
char *str=NULL;
strcpy(str,"c-pointer.blogspot.com");
printf("%s",str);
return 0;
}

Output: (null)

14
What is difference between pass by value and pass by reference?  
Answer
Explanation:
In c we can pass the parameters in a function in two different ways.

(a)Pass by value: In this approach we pass copy of actual variables in function as a parameter. Hence any modification on parameters inside the function will not reflect in the actual variable. For example:

#include<stdio.h>
int main(){
    int a=5,b=10;
    swap(a,b);
    printf("%d      %d",a,b);
    return 0;
void swap(int a,int b){
    int temp;
    temp =a;
    a=b;
    b=temp;
}
Output: 5    10

(b)Pass by reference: In this approach we pass memory address actual variables in function as a parameter. Hence any modification on parameters inside the function will reflect in the actual variable. For example:

#incude<stdio.h>
int main(){
    int a=5,b=10;
    swap(&a,&b);
    printf("%d %d",a,b);
    return 0;
void swap(int *a,int *b){
    int  *temp;
    *temp =*a;
    *a=*b;
    *b=*temp;
}

Output: 10 5

15
What is size of void pointer?  
Answer
Explanation:
Size of any type of pointer in c is independent of data type which is pointer is pointing i.e. size of all type of pointer (near) in c is two byte either it is char pointer, double pointer, function pointer or null pointer.  Void pointer is not exception of this rule and size of void pointer is also two byte.

16
What is difference between uninitialized pointer and null pointer?  
Answer
Explanation:
An uninitialized pointer is a pointer which points unknown memory location while null pointer is pointer which points a null value or base address of segment. For example: 

int *p;   //Uninitialized pointer
int *q= (int *)0;  //Null pointer
#include<stdio.h>
int *r=NULL;   //Null pointer

What will be output of following c program?

#include<string.h>
#include<stdio.h>
int main(){
    char *p;  //Uninitialized pointer
    char *q=NULL;   //Null pointer;
    strcpy(p,"cquestionbank");
    strcpy(q,"cquestionbank");
    
    printf("%s  %s",p,q);
    return 0;
}

Output: cquestionbank (null)

17
Can you read complex pointer declaration?
Answer
Explanation:
Rule 1. Assign the priority to the pointer declaration considering precedence and associative according to following table.


(): This operator behaves as bracket operator or function operator.

[]: This operator behaves as array subscription operator.

*: This operator behaves as pointer operator not as multiplication operator.

Identifier: It is not an operator but it is name of pointer variable. You will always find the first priority will be assigned to the name of pointer.

Data type: It is also not an operator. Data types also includes modifier (like signed int, long double etc.)

You will understand it better by examples:

(1) How to read following pointer?

char (* ptr)[3]

Answer:
Step 1: () and [] enjoys equal precedence. So rule of associative will decide the priority. Its associative is left to right so first priority goes to ().

Step 2: Inside the bracket * and ptr enjoy equal precedence. From rule of associative (right to left) first priority goes to ptr and second priority goes to *.

Step3: Assign third priority to [].

Step4: Since data type enjoys least priority so assign fourth priority to char.

Now read it following manner:

ptr is pointer to such one dimensional array of size three which content char type data. 

(2) How to read following pointer?

float (* ptr)(int)

Answer:
Assign the priority considering precedence and associative.

Now read it following manner:
ptr is pointer to such function whose parameter is int type data and return type is float type data.

Rule 2: Assign the priority of each function parameter separately and read it also separately. Understand it through following example.

(3) How to read following pointer?

void (*ptr)(int (*)[2],int (*) void))

Answer:

Assign the priority considering rule of precedence and associative.

Now read it following manner:

ptr is pointer to such function which first parameter is pointer to one dimensional array of size two which contentint type data and second parameter is pointer to such function which parameter is void and return type is int data type and return type is void

(4) How to read following pointer?

int ( * ( * ptr ) [ 5 ] ) ( )

Answer:
Assign the priority considering rule of precedence and associative.

Now read it following manner:

ptr is pointer to such array of size five which content are pointer to such function which parameter is void and return type is int type data.

(5) How to read following pointer?

double*(*(*ptr)(int))(double **,char c)

Answer:
Assign the priority considering rule of precedence and associative.

 

Now read it following manner:

ptr is pointer to function which parameter is int type data and return type is pointer to function which first parameter is pointer to pointer of double data type and second parameter is char type data type and return type ispointer to double data type.

(6) How to read following pointer?

unsigned **(*(*ptr)[8](char const *, ...)

Answer: 
Assign the priority considering rule of precedence and associative.

 

Now read it following manner:

ptr is pointer to array of size eight and content of array is pointer to function which first parameter is pointer to character constant and second parameter is variable number of arguments and return type is pointer to pointer of unsigned int data type. 

18
What are the parameter passing conventions in c?  
Answer
Explanation:
1. pascal: In this style function name should (not necessary ) in the uppercase .First parameter of function call is passed to the first parameter of function definition and so on. 

2. cdecl: In this style function name can be both in the upper case or lower case. First parameter of function call is passed to the last parameter of function definition. It is default parameter passing convention.
Examples: 

1. What will be output of following program?

int main(){
static int a=25;
void cdecl conv1() ;
void pascal conv2();
conv1(a);
conv2(a);
return 0;;
}
void cdecl conv1(int a,int b)
{
printf("%d %d",a,b);
}
void pascal conv2(int a,int b)
{
printf("\n%d %d",a,b);
}

Output: 25 0
0 25

(2) What will be output of following program?

void cdecl fun1(int,int);
void pascal fun2(int,int);
int main(){
    int a=5,b=5;
   
    fun1(a,++a);
    fun2(b,++b);
   return 0;
}
void cdecl fun1(int p,int q){
    printf("cdecl:  %d %d \n",p,q);
}
void pascal fun2(int p,int q){
    printf("pascal: %d %d",p,q);
}

Output:
cdecl:  6 6
pascal: 5 6

(3) What will be output of following program?

void cdecl fun1(int,int);
void pascal fun2(int,int);
int main(){
    int a=5,b=5;
   
    fun1(a,++a);
    fun2(b,++b);
    return 0;
}
void cdecl fun1(int p,int q){
    printf("cdecl:  %d %d \n",p,q);
}
void pascal fun2(int p,int q){
    printf("pascal: %d %d",p,q);
}

Output:
cdecl:  6 6
pascal: 5 6

(4) What will be output of following program?

void convention(int,int,int);
int main(){
    int a=5;
   
    convention(a,++a,a++);
    return 0;
}
void  convention(int p,int q,int r){
    printf("%d %d %d",p,q,r);
}

Output: 7 7 5
(5) What will be output of following program?

void pascal convention(int,int,int);
int main(){
    int a=5;
   
    convention(a,++a,a++);
    return 0;}
void pascal  convention(int p,int q,int r){
    printf("%d %d %d",p,q,r);
}

Output: 5 6 6

(6) What will be output of following program?

void pascal convention(int,int);
int main(){
    int a=1;
   
    convention(a,++a);
    return 0;
}
void pascal  convention(int a,int b){
    printf("%d %d",a,b);
}

Output: 1 2

(7) What will be output of following program?

void convention(int,int);
int main(){
    int a=1;
   
    convention(a,++a);
    return 0;}
void  convention(int a,int b){
    printf("%d %d",a,b);
}

Output: 2 2

19
What is the far pointer in c?  
Answer
Explanation:
The pointer which can point or access whole the residence memory of RAM i.e. which can access all 16 segments is known as far pointer.

Size of far pointer is 4 byte or 32 bit. Examples:

(1) What will be output of following c program?

int main(){
int x=10;
int far *ptr;
ptr=&x;
printf("%d",sizeof ptr);
return 0;
}

Output: 4

(2)What will be output of following c program?

int main(){
int far *near*ptr;
printf("%d %d",sizeof(ptr) ,sizeof(*ptr));
return 0;
}

Output: 4 2
Explanation: ptr is far pointer while *ptr is near pointer.

(3)What will be output of following c program?

int main(){
int far *p,far *q;
printf("%d %d",sizeof(p) ,sizeof(q));
}

Output: 4 4

First 16 bit stores: Segment number
Next 16 bit stores: Offset address

Example:

int main(){
int x=100;
int far *ptr;
ptr=&x;
printf("%Fp",ptr);
return 0;
}

Output: 8FD8:FFF4
Here 8FD8 is segment address and FFF4 is offset address in hexadecimal number format.

Note: %Fp is used for print offset and segment address of pointer in printf function in hexadecimal number format.
In the header file dos.h there are three macro functions to get the offset address and segment address from far pointer and vice versa.

1. FP_OFF(): To get offset address from far address.
2. FP_SEG(): To get segment address from far address.
3. MK_FP(): To make far address from segment and offset address.

Examples:
(1)What will be output of following c program?

#include "dos.h"
int main(){
int i=25;
int far*ptr=&i;
printf("%X %X",FP_SEG(ptr),FP_OFF(ptr));
}

Output: Any segment and offset address in hexadecimal number format respectively.

(2)What will be output of following c program?

#include "dos.h"
int main(){
int i=25;
int far*ptr=&i;
unsigned int s,o;
s=FP_SEG(ptr);
o=FP_OFF(ptr);
printf("%Fp",MK_FP(s,o));
return 0;
}

Output: 8FD9:FFF4 (Assume)
Note: We cannot guess what will be offset address; segment address and far address of any far pointer .These address are decided by operating system.

Limitation of far pointer:

We cannot change or modify the segment address of given far address by applying any arithmetic operation on it. That is by using arithmetic operator we cannot jump from one segment to other segment. If you will increment the far address beyond the maximum value of its offset address instead of incrementing segment address it will repeat its offset address in cyclic order.

Example:

(q)What will be output of following c program?

int main(){
int i;
char far *ptr=(char *)0xB800FFFA;
for(i=0;i<=10;i++){
printf("%Fp \n",ptr);
ptr++;
}
return 0;
}

Output:

B800:FFFA
B800:FFFB
B800:FFFC
B800:FFFD
B800:FFFE
B800:FFFF
B800:0000
B800:0001
B800:0002
B800:0003
B800:0004

This property of far pointer is called cyclic nature of far pointer within same segment.

Important points about far pointer:

1. Far pointer compares both offset address and segment address with relational operators.

Examples:

(1)What will be output of following c program?

int main(){
int far *p=(int *)0X70230000;
int far *q=(int *)0XB0210000;
if(p==q)
printf("Both pointers are equal");
else
printf("Both pointers are not equal");
return 0;
}

Output: Both pointers are not equal

(2)What will be output of following c program?

int main(){
int far *p=(int *)0X70230000;
int far *q=(int *)0XB0210000;
int near *x,near*y;
x=(int near *)p;
y=(int near *)q;
if(x==y)
printf("Both pointer are equal");
else
printf("Both pointer are not equal");
return 0;
}

Output: Both pointers are equal

2. Far pointer doesn’t normalize.

20
What is a cyclic property of data type in c? Explain with any example. 
Answer
Explanation:
#include<stdio.h>
int main(){
    signed char c1=130;
    signed char c2=-130;
    printf("%d  %d",c1,c2);
    return 0;
}

Output: -126   126 (why?)
This situation is known as overflow of signed char. 
Range of unsigned char is -128 to 127. If we will assign a value greater than 127 then value of variable will be changed to a value if we will move clockwise direction as shown in the figure according to number. If we will assign a number which is less than -128 then we have to move in anti-clockwise direction.



Pointers Interview questions     
Data types Interview questions    
Advance interview questions    
String interview questions and answers          
Commonly asked questions     
TCS placement question

203 comments:

1 – 200 of 203   Newer›   Newest»
blogsbyalo said...

great job!!

vichy said...

Making a C program, to record the subjects taken by a student, the subjects removed, the approved and disapproved and calculate the GPA for that semester.

The program should have the option of "going out"

Anonymous said...

Superb collection..thanks !!
just one bug to notify in Q.14..printf("Size of structure is: %d",*ptr); *ptr should be changed to ptr

Anonymous said...

Question 14 is correct one. No bug. It will work only Turbo c3.0

Anonymous said...

woov very good post.. thanks a lot to author...

Anonymous said...

superr collectionnnnnnn.............

Anonymous said...

great job what a super collectionnnnnnnnnnnn

Anonymous said...

i want a c program that will display this output:
A B C D E F G F E D C B A
A B C D E F F E D C B A
A B C D E E D C B A
A B C D D C B A
A B C C B A
A B B A
A A

Anonymous said...

Wonderful site.The effort of the site-creator is commendable.Keep it up.Your info. was quite useful.

Anonymous said...

great post!!

Anonymous said...

#include

void main()
{

int no_of_lines, alphabet = 65, i, count, j;

printf("\nenter the number of lines you want to print\t:");
scanf("%d",&no_of_lines);
count=2*no_of_lines;
for(j=0;j<no_of_lines;j++)
{
if(j==0)
{
printf("\n\n");
for(i=0;i<count;i++)
{
if(i<no_of_lines)
{
printf(" %c", alphabet++);
}
else if(i == no_of_lines)
{
alphabet--;
}
else
{
printf(" %c",--alphabet);
}
}
}
else
{
printf("\n");
//printf("\nnothing\n");
for(i=0;i<count-2*j;i++)
{
if(i<no_of_lines-j)
{
printf(" %c", alphabet++);
}
else
{
printf(" %c",--alphabet);
}
}

}
}
}


SAMPLE OUTPUT:

enter the number of lines you want to print : 5

A B C D E D C B A
A B C D D C B A
A B C C B A
A B B A
A A

if u want dat particular format enter the number of lines as 7....

Anonymous said...

Great work ..Lots of hard work ...thanks a lot..becz it helps me a lot

Anil Kumar said...

main()
{
float a=0.7;
if(a<0.7)
printf("c");
else
printf("c++");
}

output:c

Can anybody explain this plz

Ritesh kumar said...

Hi Anil,

Check the question(4) of following link
http://cquestionbank.blogspot.com/2010/04/c-questions-answers.html

I think It will help you.

Raghu said...

main()
{
float a=0.7;
if(a<0.7)
printf("c");
else
printf("c++");
}


Exp:
in the above program the compiler take it('a') as 0.7000001,so a<0.7 i.e true.so ,it's o/p is "c".

Anonymous said...

its not enough to learn "c" need some more, this is very nice collection,thank full to you

Anonymous said...

void main()
{
int i;
char j;
for(i=71;i>=65;i--)
{
for(j=65;j<=i;j++)
{
printf("%c",j);
}
printf("\n");
}


output:-
ABCDEFG
ABCDEF
ABCDE
ABCD
ABC
AB
A

Anonymous said...

void main()
{
int i;
char j,k;
for(i=71;i>=65;i--)
{
for(j=65;j<=i;j++)
{
printf("%c",j);
}
for(k=i;k>=65;k--)
{
printf("%c",k);
}
printf("\n");
}


output:-
ABCDEFGFEDCBA
ABCDEFFEDCBA
ABCDEEDCBA
ABCDDCBA
ABCCBA
ABBA
AAA

Garden sheds said...

C is a very interesting language and this is a basic of all language, if we have no knowledge of c then we cant understand c++, this is a 1st stage of all programing language.

java tutorial said...

Great! this post is very help for me.

Anonymous said...

Great work...really worthable one

Anonymous said...

awesum collection...

Anonymous said...

Awesome awesome awesome awesome awesome.......

Anonymous said...

really...helpful

Anonymous said...

awesome awesome awesome awesome awesome awesome awesome awesome awesome awesome awesome xcllnt work..............:))))))

Anonymous said...

great post

Anonymous said...

good but need little more

Talib Hussain said...

all questions are very easy questions pls post difficult question and their answers

Anonymous said...

good

Gajanan said...

Thanks u vary much to create such super blog

Anonymous said...

thank you sooooooooooooooooooooooo much...i find these questions so very useful...i could now confidently face my placement interviews..thanks once again..

Anonymous said...

I need answer for this question immediately before 3 hrs .. pls help me

1.write a c program to divide the no. 73897869by 256 without using +,-,/,* and loop statement??

Anonymous said...

and this too!

write 2 main () independent functions without using comments in a single program..pls help me friends i need the answer the answer immediately

Tanmay Chakrabarty said...

Wow....thats great. I have my Class Notes on C Programming. I shared them in my blog

Tanmay On Run

But your posts are much more helpful, My post will be helpful for class notes. But these posts are helpful for practicing. Nice to find your blog.

anurag_dake said...

1)void main()
{
float a=2.1;
if(a==2.1)
printf("TE");
else
printf("BE");
getch();
}
------------------------------------------------------
Whats the OUTPUT of Following Program
2)void main()
{
float a=2.0;
if(a==2.0)
printf("TE");
else
printf("BE");
getch();
}
give Ans with reason....:)

Ritesh kumar said...

Hi Anurag,
Please check the question (1) of the following link: http://cquestionbank.blogspot.com/2009/09/c-operator-question-with-detial.html

I hope it will help you.

Anonymous said...

thanks a lot sir..........

RAJARAJAN said...

super..................site,&&&&&&&&&&&&&&&
super collection.

Anonymous said...

very very helpful, thank you!

sudhir said...

excellent work

Anonymous said...

thanks............
supper.....D:)

Anonymous said...

i didnt even expect this much of material ..thanq :) i think it definitly helps me alot..:)

ali.... said...

In the program for dangling pointer if ptr=call()
is written before clrscr() then it prints garbage value ...if written after it prints 26 correctly......Plz explain this..........using turbo C

जाट देवता (संदीप पवाँर) said...

good very good

Anonymous said...

Write a program for a GENERAL NUMBER CONVERTERS which include
binary, decimal, octa and hexadecimal. You need to write the program using C
language.

Ritesh kumar said...

Hi,
I hope this link will help you
http://cquestionbank.blogspot.com/2010/07/c-program-examples.html

Check Conversion ( Number System ) section

Unknown said...

well frnd i have a question---

why the constructor in c++ can't be virtual but destructor can be?

Anonymous said...

I really appreciate this. I shall donate some to this site.

Priyank Gupta said...

This is very use full for students....

Anonymous said...

really good collection.....very useful

Anonymous said...

Anyone plz peast link to find turbo C for windows-7.
i have turboC.exe setup but not working properlly.

Zaad said...

Count the total words in a sentence,count once if word repeatting without using lib function.

eg- my name is jawed,my pet name is dog.

Answer-6

Anonymous said...

all genius....
great work...

raviteja said...

void main()
{
float a=2.1;
if(a==2.1)
printf("TE");
else
printf("BE");
getch();
}

In the above program a is float value but 2.1 value directly substituted in program taht value take double datatype.
-- float takes after dot(.) 8 zero's.
-- Double takes after dot(.) 16 zero's.
so.....float is not equal to double.

ans is BE.

Anonymous said...

write a program to find the rank of the number in the one dimensional array without using sorting and using two arrays

Anonymous said...

c++ has any site like c

admin said...

nice job i didn't see this type of stuff .Why don't you make website, we will made website with low price consult us sankar00002009@gmail.com

Anonymous said...

yes. good

Anonymous said...

thanks

Narottam Singh MCA said...

// This program is written in JAVA language .Which language u r using u can change

public class BB5
{
public static void main(String aa[])
{
int n=20;
int a=1;
int b=n/2;
int c=65+b;
for(int k=1;k<=(n/2+1);k++)
{
for(int i=65;i<=c;i++)
{
System.out.printf("%c",i);

}

for(int j=65+b;j>=65;j--)
{
System.out.printf("%c",j);

}
c--;
b--;
System.out.println();
}
}
}

sudhir rajput said...

#include
#include
void main()
{
int i,j;
clrscr();
for(i=9;i>=1;i++)
{
for(j=i-1;j<=i;j--)
{
printf("%d",j);
}
printf("\n");
}
getch();
}

Cbse exam said...

I Think of your talents as the things you’re really good at. They’re like personality traits. For instance, you may be a very creative person, or a person who’s really good at attending to details or a person with a gift for communicating. Your talents are the base for any successful business venture, including a home-based business.

"ನಾಗರಾಜ್ .ಕೆ" (NRK) said...

Excellent work . . .thank u

Anonymous said...

wonderful info abt C

Anonymous said...

information is very good

Anonymous said...

great job, really wonderful info.

Anonymous said...

yup the (0.7) in the if statement is by default double type
and float is always less as to double!!
so,float a=0.7 is always less than (0.7 which has it's default datatype double)!!

:-)

Arpita Chakraborty said...

really very useful..thnks a lot

Anshul Jain said...

This is really an awesome blog!!!
Way to go!!!

Devendra Deshmukh said...

Awesome! Awesome ! Awesome!

Deals 2 Buy said...

Thanks a lot. this helps a lot for fast revision of C.

Shubhabrata Naha said...

*hi can u suggest me a good ebook for Recursion in C??
I cant understand recursion :(
plz help me out...

ritesh kumar said...

Shubharata, I hope this link will help you:
How to write function recursion program in easier way

Anonymous said...

it's is very useful..............

Anonymous said...

can u write a code of this output:
Enter a number:12345
:23451
:34512
:45123
:51234
The highest number:51234

Anonymous said...

and this..
Enter a length of line:5
Enter P1:maria
Enter P1:greg
Enter P1:juan
Enter P1:bitoy
Enter P1:melai
SAVE:4

I'LL wait ur reply.. i need it so badly

Anonymous said...

i need a program for this

1
2 3
4 5 6
7 8 9 10

Anonymous said...

#include
#include
void main()
{
printf("1
2 3
4 5 6
7 8 9 10");
getch();
}

Anonymous said...

without loops.......use \t for tabs


void main()
{
printf("1\n2 3\n4 5 6\n7 8 9 10");

}

Anonymous said...

hii frnds, i am starting to learn C programming language ....but it seems so difficult, i m studying "LET US C".It is very tuff to understand the concept of looping & Decision making questions...so frnds please me guideline how can i improve my learning....coz i want to make my carier in programming.

Anonymous said...

Please add some more question like..
1.Diff. btw c and c++,
2.Diff btw c++,C,java.
3.what is deceleration and definition.

venki said...

Thank's for providing valuable information,it help's to me............

Anonymous said...

good site .create site gives information for c++,java,DBMS,unix

Anonymous said...

Thank you admin.

Sumit Gupta said...

Kudos to the Blogger!
Keep up your good work.

Anonymous said...

#include

int main (){
unsigned int j;
unsigned char i;
for(j=0;j<7;j++){
for(i = 'a';i <= ('g' - j);i++)
printf("%c", i);

for(i = ('g' - j);i >= 'a';i--)
printf("%c", i);

printf("\r\n");
}
return ;
}

Anonymous said...

hey have you done programming using calloc and malloc?
I am not able to find out...plz tell me where it is?

hitesh said...

above is right

hitesh said...

void main()
{
int j,i,k;
k=1;
for(i=1;i<=4;i++)
{
for(j=i;j<=i;j++)
{
printf("%d",k);
k++;
}
printf("/n");
}
}

hitesh said...

In the above program a is float value and 0.7 value directly substituted in program that value take double datatype.
-- float takes after dot(.) 8 zero's.
-- Double takes after dot(.) 16 zero's.
so.....float is always less than double.
Output of this program is C

Anonymous said...

thanks for your information...

They are useful everyone for developing career...

good work keep it up...

Anonymous said...

what is the output for following query:
1.select greatest(94,'845','846') from dual;
2.select greatest('94','845',846) from dual; can anyone explain me plz

rakesh said...

// this is correct , just check it , run it

#include "stdio.h"

int main()
{
int j,i,k;
k=1;
for(i=1;i<=4;i++)
{
for(j=0;j<i;j++)
{
printf("%d ",k);
k++;
}
printf("\n");
}
return 0;
}

Unknown said...

how to write a c program to find birth year by NIC number

Sasi Kala said...

hi frds i need ur help can anybody tell me the program for this algorithm??plz send to my mail id sasiviji95@gmail.com as soon as possible plz frds it's my request,,
write a c++ program to print the following triangle
5
4 5
3 4 5
2 3 4 5
1 2 3 4 5
algorithm:
s1:start the program
s2:
declare i,jand n as int data type
s3:read the number of lines
s4:fori=n to greater then or equal to 0
s4.1:for j=i to less than n print y
s5: stop the program
output:
enter number of lines 5
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5

Swarna Chandru said...

thanks a lot

Anonymous said...

#include
#include

char *
rotate(char *str)
{
char *cp = str;
char ch = *cp++;
int i;

while (*cp) {
*(cp-1) = *cp++;
}
*(cp-1) = ch;

return str;
}

void
shuffle(char *str)
{
long bigval = 0;
int i;
long val = 0;

printf("Shuffling...\n");

for (i=0; i < strlen(str); i++) {
printf("%s\n", str = rotate(str));
val = atol(str);
if (!bigval || val > bigval ) {
bigval = val;
}
}

printf("Biggest shuffle is %d\n", bigval);

}

main()
{
char buf[64];
printf("\nEnter +ve number : ");
scanf("%s",&buf);
shuffle(buf);
}

mohana priya said...

best site i ever user..

Anonymous said...

plz type the program this output display in c lang

kairam said...

your blog is soo use full and ur c skills are awesm :)

reallyoldturlte said...

Pass by reference is NOT possible in C.

The program will work however its not an example of "pass by reference"

NAVAL said...

IN the 10th question........where is const variable???

Anonymous said...

int main(){
float a=0.0f,b=1.0f,c=2.0f;
float * arr[]={&a,&b,&c}; // ************
b=a+c;
printf("%f",arr[1]);
return 0;
}

hy this is producing an error :Illegal Initialization I have marked that line by ******.......
Plz help

Abhishek Alwani said...

What is difference between dequeue and deque?

Gnanam Ramalingam said...

/*This program written in C Language*/
#include
main()
{
char i,j,k;
for(i='G';i>='A';i--)
{
for(j='A';j<=i;j++)
{
printf("%c",j);
}
for(k=i;k>='A';k--)
{
printf("%c",k);
}
printf("\n");
}
}

chahal said...

Please make a program to reverse the string "MY NAME IS KHAN" to "KHAN IS MY NAME".

Anonymous said...

what is memory representation of 5.235!!!!!!

Anonymous said...

where is the answers????????????

PRASANNA said...

good good,thanxxxxxxxxxxxxxxx

RAJAT SAPRA said...

the way you explain in q17 is awesome I hve ever read.. :)

Anonymous said...

#include
int main()
{
int a,n=7,i,c;
for(i=0;i<=n;i++)
{for(c=0;c<=(n-i);c++)
printf(" ");
for(c=0,a=65;c<=i;c++,a++)
printf("%c",a);
printf("\n");
}
n++;
for(i=n;i<=16;i++)
{
for(c=0;c<=n-i;c++)
printf(" ");
for(c=0,a=65;c<=(2*n-i);c++,a++)
printf("%c",a);

printf("\n");
}
return 0;
}
out put is :
A
A B
A B C
A B C D
A B C D E
A B C D
A B C
A B
A

Gunjan Chauhan said...

void main()
{
int i=30;
int j=40;
printf("%d..%d");
getch();
}
output- 40..30
plz tell m logic used in this prog.

Anonymous said...

yeah man this is it all you need good work

Saimanohar Boidapu said...

awesome !! great explanation !!!!! very thanq sir :)

Md Raheemuddin said...

your blog is soo use full and ur c skills are awesm :)

Anonymous said...

hello frnds
any logic bits are there
plz tell me
help me

Anonymous said...

write a program in c input 1 and the output 100 anybody rly me pls

Anonymous said...

setup an internet connection and share this connection using proxy server with limited service that is only HTTP and FTP? please friends answer the quetion............

Anonymous said...

Write a "C" programe to show weekday when input 1 show Monday 2 tuesday as show on using the switch statement? give me answer the que..........

Anonymous said...

What is the output of the following code segment?
int i=1;
do
while(i++<=5);
while(i++<=4);
while(i++<=3);
printf(“%d”,i);

Anonymous said...

What is the output of the following code segment?
int i=1;
while(i++<5);
printf("%d",i);

Anonymous said...

6

Ajmath Valli said...

superb...................

Pramesh Pudasaini said...

Thank you! Good questions.

vijay singh said...

#include
#include
#include
void arraydivide(char a[])
{
int i,j,k,l,length;
length=strlen(a);
for(i=length-1;i>=0;i--)
{
for(j=0;j<=i;j++)
{
printf("%c",a[j]);
}
if(i==length-1)
for(k=i-1;k>=0;k--)
{
printf("%c",a[k]);
}
else
{
for(l=i;l>=0;l--)
{
printf("%c",a[l]);
}
}
printf("\n");
}
}
void main()
{
char a[]={"ABCDEFG"};
clrscr();
arraydivide(a);
getch();
}

Lekha Kumaravelu said...

can u pls help me to get output in dis format and also explain them
#
# # #
# # # # #
# # # # # # #

Njayou Youssouf said...

#include /* it's in c language*/

int main()
{

int lines,i,j;

scanf("%d",&lines); /** the number of lines that you need*/
for(i=0; i<lines; i++)
{
printf("#");

for(j=0; j<i; j++)
printf("##");

printf("\n");


}

return 0;
}

sandy hrk said...

superb

Avi said...

Its written in c...

#include
#include
int main(){
char ch,comp;
comp='G';
int i;
for(i=0;i<7;i++){
ch=65;
while(ch<=comp){
printf("%2c",ch++);
}
if(ch=='H'){
ch=ch-2;
}
else{
ch--;
}
while(ch>=65){
printf("%2c",ch--);
}
comp--;
printf("\n");}

getch();
return(0);
}

MD MIRAJ ANSARI said...

too good site

Manish Bhadani said...

Array of pointers in c:

Array whose content is address of another variable is known as array pointers. For example:

int main(){
float a=0.0f,b=1.0f,c=2.0f;
float * arr[]={&a,&b,&c};
b=a+c;
printf("%f",arr[1]); not this // here Printf("%f",*arr[1]); this is true sentence
return 0;
}

Manish Bhadani said...

10)
Write a c program to modify the constant variable in c?
Explanation:
You can modify constant variable with the help of pointers. For example:

#include
int main(){
int i=10;
int *ptr=&i;
*ptr=(int *)20;
printf("%d",i);
return 0;
}

Output: 20



MISTAKE :: *ptr=(int)20;

Manish Bhadani said...

mistke is in 7th answer

Manish Bhadani said...

mistake :: Q--12 A--12
printf("Size of structure is: %d",*ptr); //this st. provide address of the value not actual value

true statement is :: printf("Size of stucture is: %d",ptr); // this st. provide actual value

Manish Bhadani said...

printf("%f",*arr[1]);

Manish Bhadani said...

constant variable means not const it's just member variable which hold some specific value.
and u thing the const, we cant change its value accept help of hardware time.

Manish Bhadani said...

u can use pointer of multiple array. using this feature u can build your program what u want.

ankit kumar said...

how we can print N*N matrix without using an array

Shelvane Baburao said...

int main()
{
int a=15;
a=(++a)+015+0x15;
printf("%d",a);
return 1;
}

i don't know how to work octal and hex hear so plz tell me what is o/p with explanation of that prog.

Mansoor Hassan said...

if u can u get all the answer for above question ill be very thankfull for the one

Rezaul Alam said...

Q) Write a program to identify keyword in 'c'
sample input: for

sample output: this is keyword

sample input: why

sample output: this is not keyword

Amrut Pednekar said...

guys code for
Input: 12/02/1993
Output: 12-feb-1993

Omi Yadav said...

int i,j;
for(i=5;i>0;i--)
{
for(j=0;j<=(5-i);j++)
{
printf("%d",j+i);
}
printf("\n");
}

Manish Bhadani said...

thank you... such a nice collection. keep it up..

manu said...

c program for merging two arrays into a single array alternatively:
sample Input:
a[]=1,2,3,4
b[]=a,b,c,d
sample output:
1,a,2,b,3,c,4,d

Nitindobariyak Dobariya said...

1
12
123
1234

Manikanta Tanni said...

it was good material to the freshers

Manikanta Tanni said...

it prints 1

akki singh said...

plz solve this problem through while and for loop
1
2 6
3 7 10
4 8 11 13
5 9 12 14 15

akki singh said...

plz help me

akki singh said...

plz help me

maheesh gunttakala said...

write a programm to draw w shap by using height=5,width=2 in c or java

\ \ \ \ \ \ \ \
\ \ \ \ \ \ \ \
\ \ \ \ \ \ \ \
\ \ \ \ \ \ \ \
\ \ \ \ \ \ \ \

maheesh gunttakala said...

sorry above shape is not correct. print w shape

ramya davi said...

i want a c program to
print the following pattern
1 2 4 7
2 5 8 11
6 9 12 14
10 13 15 16

ramya davi said...

i want a c program to
Find whether the given word can be converted into palindrome or not
Ex : 1
Input : tests
It can be converted into tsest or stets
Output : Yes
Ex : 2
Input : arm
Output : No
please help me as soon as possible

Suba Gj said...

*
* *
* * *
* * * *
* * *
* *
*

Suba Gj said...

i want a this output's program

monika uppala said...

thanks a lot

bals vinoth said...

i need program for following
a
as
asp
aspi
aspir
aspire

Bong chhuy said...

I want to know the answer
C programming Using nested loop
Input n=3
output:
S1: 1!+2!+3!+........+n!=9
S2: 1!+3!+5!+........+(2n-1)!=127
S3: 2!+4!+6!+........+2n!=736

Bong chhuy said...

How can i understand patterns in c programming......
*
**
***
****

tiger said...

Create a program to calculate the salary and bonus based on sales of a staff.

(i) In main() :

(ii) In function get_bonus(...) :

- Ask the user to enter satff id, salary and units sold.

- Call function get_bonus(...) and pass units sold and salary to calculate

the bonus amount.

- Call function get_nett_salary(...) and pass salary and bonus amount to

calculate the nett salary.

- Call function display(...) and pass staff id, salary, units sold, bonus

amount and nett salary to be displayed on screen.

- get the units sold and salary from main() to calculate the bonus amount

by refering to the following table.

- return the bonus amount to main().

UNITS SOLD BONUS

> 1000 20% of salary

501 - 1000 10% of salary

(ii) In function get_nett_salary(...) :

(iv) In function display(...)

- get the bonus amount and salary from main() to calculate the nett salary.

- return the nett salary to main()

- get staff id, salary, units sold, bonus amount and nett salary from main.

- display all information on screen.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

DATA ENTRY

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Enter staff id : 1234

Enter staff salary : RM 3500.00

Enter total units sold : 750

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

SALARY SLIP

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Staff ID : 1234

Staff salary : RM 3500.00

Units sold : 750

Bonus : RM 350.00

Nett Salary : RM 3850.00

Press any key to continue

tiger said...

can someone help me with this question?

Engr SA Masum said...

Wrote a program that take a integer number as input from user then reverse the number and show which grade it belongs to simple input : 18 output : 81 At please give me answer.

ನಿರಂಜನ್ said...

Very nice post , many things to learn from this, But very small correction required in 20th questions output part. It says: Range of unsigned char is -128 to 127. It should be Range of signed char is -128 to 127.Please change the unsigned to signed .

Nagaraju muthyala said...

m.nagaraju

this is the sim[ple solution for that program
#include
#include
void main()
{
int r,c;
for(r=1;r<=5;r++)
{
for(c=1;c<=r;c++)
{
printf("#");
}
printf("\n");
}
getch();
}

Nagaraju muthyala said...

above the all answres r exactly right

Vaibhav Singh said...

#include
#include
void main()
{
int i,j;
for(i=1;i<=5;i++)
{
printf("#");
for(j=1;j<i;j++)
{
printf("##");
}
printf("\n");
}
getch();
}

padmaja said...

i need tricky questions on pointers to salve;i need difficult questions

Bhuvan Chandra said...

how can iprint 1-50 or 50-100 numbers in linux c program
by using if-else

Unknown said...

the value of float a=0.7 will be 0.70000 .and we compare (0.70000<0.7)
condition satisfied so the answer is "c"

kuntal chaudhari said...

Very nice collection.. can u plz provide a program to print hello world without main() function..

Rajkumar Macha said...

I am not getting code for this pattern, can anyone of you can help me with this
the pattern is
D C B A
C B A
B A
A
I am getting o/p as
D B C A
D C B
D C
D

Bishawjeet paul said...

How to print
A
B C
D E F
G H I J

Wasi Ahmed said...

how to print pascal triangle exactly from the middle of screen......???all the lines shd B equidistant frm both the corners....

Deepika Sharma said...

Its very beneficial blog. this is very useful for everyone. Want more latest job vacancies update. Visit Here

AGM said...

hello i have some question about what this reason of d and rep
long ppdp(long n)
{long d=2,rep=n;
if (n%2==0)
{rep=2;
}else {
d=3;
while (d*d<n && rep==n)
{if(n%d==0)
rep=d;
else
d+=2;
}
}
return rep;
}

Unknown said...

char i, j;

for (i = 65; i<=70; i++)
{
printf ("\n");
for(j=65; j<=i; j++)
printf("%c", j);
}
return 0;
}

Unknown said...

no>>9

ASHISH PATEL said...

Please update 12th question:

Explanation:
struct ABC{
int a;
float b;
char c;
};
int main(){
struct ABC *ptr=(struct ABC *)0;
ptr++;
printf("Size of structure is: %d",*ptr);//=>original:Here we got error
printf("Size of structure is: %d",ptr);//=>new update
return 0;
}

Thank you

Yan Ge said...

question 10;

output: 10

Yan Ge said...

question 10;

output: 10

KD said...

Write a C program using function that takes a string and a number between 0 and 9 as parameters, and displays the string that many times, and returns its length.

KD said...

Write a C program to accept the names and marks of 7 students in 5 subjects. Print in descending order the rank list based on the average of the 5 subjects. Also print the name of the first ranker and his percentage.

Suraj Binage said...

This C Question & answers are very good.Please tell me how to download All PDF file.

nandu deshmukh said...

#include
main()
{
int i,k;
for(i=5;i>0;i--)
{
for(k=i;k<=5;k++)
{
printf("%d",k);
}
printf("\n");
}
}

Vasam Sudheer said...

I want below pattern in C or Any Programming language
ABCCBA
AB BA
A A
AB BA
ABCCBA

Unknown said...

#include
int main()
{
int n;
printf(¨enter n value¨);
scanf(¨%d¨,&n);
for(int i=1;i<=n;i++)
{
for int j=1;j<=i;j++)
{
printf(¨*¨);
}
printf(¨\n¨);
getch();
}

sowmya devi said...

#include
int main()
{
char s[7]="aspire";
for(int i=0;i<7;i++)
{
for(int j=0;j<i;j++)
{
printf("%c",s);
}
printf("\n");
}
}

Muktak Pandya said...

Using Divide and conquer technique,how can we evaluate the polynomial P(x)= a+bx+cx2+.....+ nxn at a given point x .

Zubair Baig said...

C Programming Tips And Tricks...

Vist This Link..
https://youtu.be/TBKVuM9W8RM

devibala rajendran said...

i need a program to find computer configuration

akmal niazi khan said...

This blog awesome and i learn a lot about programming from here.The best thing about this blog is that you doing from beginning to experts level.

Love from

Sangeeth Kumar said...

thankyou

Unknown said...

Helpful

Unknown said...

Helpful

Aravind A said...

Good job bro :) keep rocking...

Arfa shaik said...

tq for qns with answrs......

Unknown said...

write a program to input a number and count the digits in it.use while loop and the program should work correctly for zero(0) also ?

Nagaraju muthyala said...

#include
main()
{
int n,r,c;
printf("enter n...");
scanf("%d",&n);
for(r=1;r<=n;r++);
for(c=1;c<=n;c++)
printf("%d",c+r);
printf("\n");
}

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