C programming good questions with answer

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

void main(){

int x=012,y;

clrscr();

y=++x- ~x+4?5:6;

printf("%#X %x",y,y);

getch();

}

Output: 0X5 5

Explanation:

012 is octal number because it is staring with number zero. %x, %X is used for to print the number in hexadecimal format. # indicates output should in the format: 0x number.

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

void main(){

int x=0x12,y;

clrscr();

y=(x,1,10)+x,1,10;

printf("%#o, %o",y,y);

getch();

}

Output: 034 34

Explanation:

0x12 is hexadecimal number because it is staring with 0x. %o is used for to print the number in octal format.

# indicates output should in the format: 0 numbers.