GATE CSE 2010 | Question: 35

Question

What is the value printed by the following C program?

#include<stdio.h>

int f(int *a, int n)
{
    if (n <= 0) return 0;
    else if (*a % 2 == 0) return *a+f(a+1, n-1);
    else return *a - f(a+1, n-1);
}

int main()
{
    int a[] = {12, 7, 13, 4, 11, 6};
    printf("%d", f(a, 6));
    return 0;
}

• A. $-9$
• B. $5$
• C. $15$
• D. $19$

Comments

@kenzou, The program won't compile with parenthesis used in the initializer. Please change it to "{ }"

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Fixed now.

Answer 1

Here is the explanation !!