How to print percentage symbol '%' on console screen in C programming language? Select your choice...

Question

1. printf("%"); 2. printf("%%"); 3. printf("\%"); 4. None

Answer 1

seems like

int main() {
int x = 80;
printf("%d%%",x);
return 0;
}

would be the solution if that is all you want.

Answer 2

Have you tried them out?

Answer 3

printf("%c",37);

Answer 4

In a real programming situation I would say 4. None. Although one of those options would work, you don't need the extra overhead in formatted print just to output a single character. More appropriate would be:

putc('%', stdout);