[HackerRank] Simple Arra Sum | A Ver Big Sum

Simple Array Sum

Problem

Given an array of N integers, can you find the sum of its elements?

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.

Output Format

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

Sample Input

61 2 3 4 10 11

Sample Output

31

Solution

import java.io.*;import java.util.*;public class Solution {    public static void main(String[] args) {        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */        Scanner sc = new Scanner(System.in);        int size = sc.nextInt();                int sum = 0;        while(sc.hasNextInt()){                      sum += sc.nextInt();        }        System.out.print(sum);    }}

A Very Big Sum

Solution

import java.io.*;import java.util.*;public class Solution {    public static void main(String[] args) {        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */        Scanner sc = new Scanner(System.in);        int size = sc.nextInt();                long sum = 0;        while(sc.hasNextInt()){                      sum += (long)sc.nextInt();        }        System.out.print(sum);    }}

关键字：java, basic, sum, solution

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