# Calculate the sum of elements in an array in C++

## Program to calculate the sum of elements in an array in C++

Here, in this page we will discuss a C++ Program to find the sum of the elements of an given input array.

Example : Arr : {10, 20, 30, 40, 50}

Sum of the given array elements are : 10+20+30+40+50 = 150 ## Algorithm :

• Take the size of the array from the user and store it in variable say N.
• Take N elements of an array from the user and store them in a an array say Arr[].
• Declare a variable say sum that store the elements sum in it and initialize sum = 0.
• Now, Run a loop from 0 to N-1 and add the corresponding ith value in the variable sum.
• Print the sum on the output screen. ## C++ code based on above algorithm

`#include <iostream>using namespace std;int main(){    int n;    cin>>n;        int a[n], sum = 0;    for (int i = 0 ; i < n; i++)      cin>>a[i];          for(int i = 0; i < n; i++)      sum += a[i];        cout<<sum ;}`
`Input :5 10 20 30 40 50Output :150`