Question

Write a program to calculate the average marks of a student (Declare variables as global)?

Answer 1

#include <iostream>
using namespace std;

int marks[] = { 68, 34, 56, 80 };
const int marks_size = sizeof(marks) / sizeof(int);

int main()
{
double sum = 0;
for (int i = 0; i < marks_size; ++i)
& sum += marks[i];
double average = sum / marks_size;

cout << "Average mark is " << average << endl;

return 0;
}