Codeforces round 1676(A. Lucky?)

Just count the first three & last three number

///Bismillahir Rahmanir Rahim
///Author: Tanvir Ahmmad
///CSE,Islamic University,Bangladesh

#include<iostream>
#include<cstdio>
#include<algorithm>
#include<string>
#include<cstring>
#include<sstream>
#include<cmath>
#include<cstring>
#include<vector>
#include<queue>
#include<map>
#include<set>
#include<stack>
#include<vector>
#include<iterator>
#include <functional> ///sort(arr,arr+n,greater<int>()) for decrement of array
/*every external angle sum=360 degree
  angle find using polygon hand(n) ((n-2)*180)/n*/
///Floor[Log(b)  N] + 1 = the number of digits when any number is represented in base b
using namespace std;
typedef long long ll;

int main()
{
    string str;
    ll tst;
    cin>>tst;
    while(tst--)
    {
        ll sum=0,sum1=0;
        cin>>str;
        for(ll i=0;i<3;i++) sum+=(str[i]-48);
        for(ll i=3;i<6;i++) sum1+=(str[i]-48);
        if(sum==sum1) cout<<"YES"<<endl;
        else cout<<"NO"<<endl;
    }
    return 0;
}
///Alhamdulillah
 
Problem Link:https://codeforces.com/contest/1676/problem/A

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