HackerRank HourRank 25 Constructing a Number Solution

 Problem Link: https://www.hackerrank.com/contests/hourrank-25/challenges/constructing-a-number/problem

Solution in C++:

///La ilaha illellahu muhammadur rasulullah

///******Bismillahir-Rahmanir-Rahim******///

///Abul Hasnat  Tonmoy

///Department of CSE,23rd batch

///Islamic University,Bangladesh

///**********ALLAH IS ALMIGHTY************///

#include <bits/stdc++.h>

using namespace std;

int main()

{

    int x,t,i,j,o,e,n;

    cin>>t;

    while(t--)

    {

        string s;

        int sum=0;

        cin>>n;

        for(i=0; i<n; i++)

        {

            cin>>s;

            for(j=0;j<s.size();j++)

            {

                sum+=s[j]-'0';

            }

        }

        if(sum%3==0)cout<<"Yes"<<endl;

        else

        cout<<"No"<<endl;

    }

}