HackerRank Simple Array Sum problem solution

In this HackerRank Simple Array Sum problem solution, Given an array of integers, find the sum of its elements.

For example, if the array ar = [1,2,3],1+2+3 = 6, so return 6.

Function Description

Complete the simpleArraySum function in the editor below. It must return the sum of the array elements as an integer.

simpleArraySum has the following parameter(s):

ar: an array of integers

Input Format

The first line contains an integer, n, denoting the size of the array.

The second line contains n space-separated integers representing the array’s elements.

Constraints

0 < n, ar[i] <= 1000

Output Format

Print the sum of the array’s elements as a single integer.

Problem solution in Python programming.

#!/bin/python3

import os
import sys

#
# Complete the simpleArraySum function below.
#
def simpleArraySum(ar):
    x=0
    for i in range(0,ar_count):
        x = x + ar[i]
    return x


if __name__ == '__main__':
    fptr = open(os.environ['OUTPUT_PATH'], 'w')

    ar_count = int(input())

    ar = list(map(int, input().rstrip().split()))

    result = simpleArraySum(ar)

    fptr.write(str(result) + 'n')

    fptr.close()

Problem solution in Java Programming.

import java.io.*;
import java.util.*;

public class Solution {

	public static void main(String[] args) throws Exception
	{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		br.readLine();
		int output=0;
		String[] input = br.readLine().split(" ");
		for(String value:input)
		{
			output += Integer.parseInt(value);
		}
		System.out.println(output);
	}
}

 

Problem solution in C++ programming.

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */   
    int numLines;
    int currNumber, total = 0;
    
    cin >> numLines;
    
    for (int i=0; i<numLines;i++) {
        cin >> currNumber;
        total += currNumber;
    }
    
    cout << total;
    
    return 0;
}

 

Problem solution in C programming.

#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdlib.h>
int N;
int map[1000];
int main() {
  long int sum =0;
    scanf("%d",&N);
    for(int i = 0; i<N; i++)
        {
      scanf("%d",&map[i]);
    }
    for(int i=0; i<N;i++)
        {
        sum += map[i];
    }
    /* Enter your code here. Read input from STDIN. Print output to STDOUT */    
    printf("%ld",sum);
    return 0;
}

 

Problem solution in JavaScript programming.

function processData(input) {
    console.log(input.split(/n/)[1].split(/s/).map(Number).reduce(function(a, b) {
        return a + b;
    }))
} 

process.stdin.resume();
process.stdin.setEncoding("ascii");
_input = "";
process.stdin.on("data", function (input) {
    _input += input;
});

process.stdin.on("end", function () {
   processData(_input);
});