Write a c program to check given number is strong number or not.





Code 1:
1. Write a c program to check whether a number is strong or not

#include<stdio.h>
int main(){
  int num,i,f,r,sum=0,temp;

  printf("Enter a number: ");
  scanf("%d",&num);
 
  temp=num;
  while(num){
      i=1,f=1;
      r=num%10;

      while(i<=r){
         f=f*i;
        i++;
      }
      sum=sum+f;
      num=num/10;
  }
  if(sum==temp)
      printf("%d is a strong number",temp);
  else
      printf("%d is not a strong number",temp);

  return 0;
}

Sample output:
Enter a number: 145
145 is a strong number

Code 2:
1. C program for strong number
2. Strong number program in c

#include<stdio.h>
int main(){
  int num,i,f,r,sum,temp;
  int min,max;

  printf("Enter minimum range: ");
  scanf("%d",&min);

  printf("Enter maximum range: ");
  scanf("%d",&max);

  printf("Strong numbers in given range are: ");
  for(num=min; num <= max; num++){
      temp = num;
      sum=0;

      while(temp){
           i=1;
           f=1;
           r=temp%10;

           while(i<=r){
             f=f*i;
             i++;
           }
         sum=sum+f;
         temp=temp/10;
      }
        
      if(sum==num)
           printf("%d ",num);
  }
  return 0;
}

Sample output:
Enter minimum range: 100
Enter maximum range: 100000
Strong numbers in given range are: 145 40585





Definition of strong number:

A number is called strong number if sum of the factorial of its digit is equal to number itself. For example: 145 since
1! + 4! + 5! = 1 + 24 + 120 = 145





10. Write a c program to add two numbers without using addition operator.
11. Write a c program to subtract two numbers without using subtraction operator.
15. Write a c program to solve quadratic equation.
18. Write a c program which passes structure to function.
28. Write a c program which takes password from user.
29. Write a scanf function in c which accept sentence from user.
30. Write a scanf function in c which accept paragraph from user.
Post a Comment