Program to find sum of elements in a given array

Given an array of integers, find sum of its elements.

Examples : 

Input : arr[] = {1, 2, 3}
Output : 6
1 + 2 + 3 = 6

Input : arr[] = {15, 12, 13, 10}
Output : 50

C++

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/* C++ Program to find sum of elements 
in a given array */
#include <bits/stdc++.h>
using namespace std;
  
// function to return sum of elements 
// in an array of size n 
int sum(int arr[], int n) 
{ 
    int sum = 0; // initialize sum 
  
    // Iterate through all elements 
    // and add them to sum 
    for (int i = 0; i < n; i++) 
    sum += arr[i]; 
  
    return sum; 
} 
  
// Driver code
int main() 
{ 
    int arr[] = {12, 3, 4, 15}; 
    int n = sizeof(arr) / sizeof(arr[0]); 
    cout << "Sum of given array is " << sum(arr, n); 
    return 0; 
} 
  
// This code is contributed by rathbhupendra

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C














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/* C Program to find sum of elements 


 in a given array */


#include <bits/stdc++.h> 


  


// function to return sum of elements 


// in an array of size n 


int sum(int arr[], int n) 


{ 


    int sum = 0; // initialize sum 


  


    // Iterate through all elements  


    // and add them to sum 


    for (int i = 0; i < n; i++) 


    sum += arr[i]; 


  


    return sum; 


} 


  


int main() 


{ 


    int arr[] = {12, 3, 4, 15}; 


    int n = sizeof(arr) / sizeof(arr[0]); 


    printf("Sum of given array is %d", sum(arr, n)); 


    return 0; 


} 



















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Java














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/* Java Program to find sum of elements in a given array  */


class Test 


{ 


     static int arr[] = {12,3,4,15}; 


       


     // method for sum of elements in an array  


     static int sum() 


     { 


         int sum = 0; // initialize sum 


         int i; 


        


         // Iterate through all elements and add them to sum 


         for (i = 0; i < arr.length; i++) 


            sum +=  arr[i]; 


        


         return sum; 


     } 


       


     // Driver method 


     public static void main(String[] args)  


     { 


         System.out.println("Sum of given array is " + sum()); 


        } 


 } 



















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Python3














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# Python 3 code to find sum  


# of elements in given array 


def _sum(arr,n): 


      


    # return sum using sum  


    # inbuilt sum() function 


    return(sum(arr)) 


  


# driver function 


arr=[] 


# input values to list 


arr = [12, 3, 4, 15] 


  


# calculating length of array 


n = len(arr) 


  


ans = _sum(arr,n) 


  


# display sum 


print ('Sum of the array is ',ans) 


  


# This code is contributed by Himanshu Ranjan 



















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C#














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// C# Program to find sum of elements in a 


// given array  


using System; 


  


class GFG {  


      


    // method for sum of elements in an array  


    static int sum(int []arr, int n) 


    { 


          


        int sum = 0; // initialize sum 


          


        // Iterate through all elements and  


        // add them to sum 


        for (int i = 0; i < n; i++) 


            sum += arr[i]; 


          


        return sum; 


    } 


      


    // Driver method 


    public static void Main()  


    { 


          


        int []arr = {12,3,4,15}; 


        int n = arr.Length; 


          


        Console.Write("Sum of given array is "


                               + sum(arr, n)); 


    } 


  


} 


  


// This code is contributed by Sam007. 



















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PHP














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<?php 


// PHP Program to find sum of  


// elements in a given array  


  


// function to return sum  


// of elements in an array 


// of size n 


function sum( $arr, $n) 


{ 


    // initialize sum 


    $sum = 0;  


  


    // Iterate through all elements  


    // and add them to sum 


    for ($i = 0; $i < $n; $i++) 


    $sum += $arr[$i]; 


  


    return $sum; 


} 


  


// Driver Code 


$arr =array(12, 3, 4, 15); 


$n = sizeof($arr); 


echo "Sum of given array is ",  


                sum($arr, $n); 


  


// This code is contributed by aj_36 


?> 



















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Output :


Sum of given array is 34









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Improved By :  jit_t, rathbhupendra