C Programming · Question 20 · Easy

What will be the output of the following C program?

#include <stdio.h>

int main(void) {
    printf("%d", '9' - '0' + 1);
    return 0;
}
  1. Compilation error
  2. 10
  3. 91
  4. 58
Answer and explanation

Answer: B. 10

Explanation: Digit characters have consecutive codes, so '9' - '0' is 9. Adding 1 gives 10.

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