# C++ program to find sum of elements in an array

## Finding sum of elements in an array in C++

In this article, we will learn to program to find the sum of elements in an array in C++. For this, we will iterate each element through a for loop and will add each element in the previous sum repeatedly on every iteration. Steps and algorithm for the same is given in detailed below.

## Steps to find sum of element in an array in C++

Following steps are followed while finding the sum of element in an array:-

1. Initialize the required variables.
2. Accept the inputs from user.
3. Iterate each element of the array using a for loop.
4. Add every element that is iterated in any other variable for ex sum.
5. Print that variable.

## Algorithm to find sum of element in an array

• Start
• Sum=0
• For i= 0 to n-1
• Sum+=arr[i]
• Exit

## C++ programming code to find sum of element in an array

```#include <iostream>
using namespace std;
int main()
{
int arr[100],i,size,sum=0;
cout<<"Enter the number of elements: ";
cin>>size;//Accepting array size
cout<<"Enter the value of elements: "<<endl;
for(i=0;i<n;i++)
{
cin>>arr[i]; //Accepting values
}

for(i=0;i<n;i++)
{
sum=sum+arr[i];//Calculating sum
}
cout<<"Sum of elements in an array is: "<<sum;
return 0;
}
```
```Output:
Enter the number of elements: 5
Enter the value of elements:
7
10
3
12
5
Sum of elements in an array is: 37```