C Programming · Question 2 · Easy

What will be the output of the following C program?

#include <stdio.h>

int main(void) {
    int x = 5;
    printf("%d", x++ + 10);
    printf(" %d", x);
    return 0;
}
  1. 16 6
  2. 15 5
  3. 16 5
  4. 15 6
Answer and explanation

Answer: D. 15 6

Explanation: x++ is post-increment: the expression uses the old value 5, so 5 + 10 = 15 is printed. The increment takes effect afterwards, so x is 6 in the second printf.

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