A Very Big Sum C++ Program

A very big sum c++ program.

In this article, you will learn how to make a very big sum c++ program.

Example

You should have knowledge of the following topics in c++ programming to understand these programs:

• C++ main() function
• C++ while loop
• C++ for loop
• C++ Array

Source Code

// A Very Big Sum C++ Program
#include <iostream>
using namespace std;

int main() {
    int s = 0;
    cout << "Enter the size of array::\n";
    cin >> s;

    long arr[s], sum=0;
    int i=0;

    while (i<s) {
        cin >> arr[i];
        sum += arr[i];
        i++;
    }

    // It will return the final output
    cout << "\nBig Sum = " << sum << endl;
    return 0;
}

Run

Output

Explanation

In this given program we have taken the inputs size of the array 6 and the array's elements 1000010000010001, 1000010000010002, 1000010000010003, 1000010000010004, 1000010000010005, 1000010000010006. Then we make a sum of each element of the array.

After the whole calculation above program will return the 6000060000060021 output of the program.

A Very Big Sum C++ Program using For loop 

// A Very Big Sum C++ Program using For loop
#include <iostream>
using namespace std;

int main() {
    int s = 0;
    cout << "Enter the size of array::\n";
    cin >> s;

    long arr[s], sum=0;
    for (int i=0; i<s; i++) {
        cin >> arr[i];
        sum += arr[i];
    }

    // It will return the final output
    cout << "\nBig Sum = " << sum << endl;
    return 0;
}

Run