What is output of the following C program? Provide explanation please.

Question

#include <stdio.h>
int main ()
{
int a = 10;
printf("%d", printf("%d", a);
return 0;
}

Answer 1

Mehedy Iraq if you want to know the output, then run it. It's the most expedient way. In this case you will uncover a syntax error when you run it, due to a missing closing parenthesis.

To understand the intended output, know that the return value of the printf function is the number of characters that it printed.