22 - 10 - 20

 PROBLEM

SOLUTION - MY

#include <stdio.h>

#include <string.h>

#include <math.h>

#include <stdlib.h>

//Complete the following function.

int marks_summation(int* marks, int number_of_students, char gender) {

    int sum = 0, i;

    for(i = 0;  i < number_of_students; i++){

        if(gender == 'b'){

            if(i%2 == 0)

                sum = sum + *(marks + i);

        }

        else {

            if(i%2 != 0)

                sum = sum + *(marks + i);

        }

    }

   return sum; 

}

int main() {

    int number_of_students;

    char gender;

    int sum;

  

    scanf("%d", &number_of_students);

    int *marks = (int *) malloc(number_of_students * sizeof (int));

 

    for (int student = 0; student < number_of_students; student++) {

        scanf("%d", (marks + student));

    }

    

    scanf(" %c", &gender);

    sum = marks_summation(marks, number_of_students, gender);

    printf("%d", sum);

PROBLEM SETTER SOLUTION

#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>

int marks_summation(int* p, int number_of_students, char gender) {
    int s = 0, i = 0;
    if (gender == 'g') {
        i++;
    }
    for (; i < number_of_students; i = i+2) {
        s += p[i];       
    }
    return s;
}