Codeforces Round #807 (Div. 2) 1705A - Mark the Photographer Solution

 

Problem Link: https://codeforces.com/contest/1705/problem/A

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()

{

    long long   x,t,i,j,d,e,n,v,r;

    cin>>t;

    while(t--)

    {

        r=0;

        cin>>n>>x;

        v=n*2;

        int a[v];

        for(i=0; i<v; i++)cin>>a[i];

        sort(a,a+v);

        for(i=0; i<n; i++)

        {

            d=a[n+i]-a[i];

            if(d<x)

            {

                r=1;

                break;

            }

        }

        if(r==1)

            cout<<"No"<<endl;

        else

            cout<<"Yes"<<endl;

    }

}