Students Marks Sum

You are given an array of integers marks denoting the marks scored by students in a class.

• The alternating elements marks[0], marks[2], marks[4], and so on denote the marks of boys.
• Similarly,marks[1],marks[3],marks[5] and so on denote the marks of girls.

Write a program to find the sum of marks of the given gender.

Example:

Input:  marks[]={1,2,3,4,5}, gender='g'
Output: 6

Approach

C

#include <stdio.h>

int marks_summation(int *marks, int n, char gender)
{
    //Write your code here.
    int ans = 0;
    if (gender == 'b')
    {

        for (int i = 0; i < n; i += 2)
        {
            ans += marks[i];
        }
    }
    else
    {

        for (int i = 1; i < n; i += 2)
        {
            ans += marks[i];
        }
    }
    return ans;
}
int main()
{
    int marks[] = {1, 2, 3, 4, 5};
    char gender = 'g';
    int n = sizeof(marks) / sizeof(marks[0]);

    int sum = marks_summation(marks, n, gender);

    printf("%d", sum);
    return 0;
}