Question

How many times is the function recursive_sum() called when the following code is executed?

#include<stdio.h>
int recursive_sum(int n)
{
      if(n == 0)
        return 0;
      return n + recursive_sum(n - 1);
}
int main()
{
     int n = 5;
     int ans = recursive_sum(n);
     printf("%d",ans);
     return 0;
}

a.

4

b.

5

c.

6

d.

7

Posted under Data Structures and Algorithms

Answer: (c).6

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Q. How many times is the function recursive_sum() called when the following code is executed?

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