Pinta-ala

#include <bits/stdc++.h>

using namespace std;

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int t;
    cin >> t;

    int ala, tavoite, ero;

    for (int i = 0; i < t; i++)
    {
        cin >> ala;
        cin >> tavoite;
        ero = tavoite - ala;

        if (ero <= 0)
        {
            cout << "NO\n";
            continue;
        }

        double sqr = sqrt(ala);
        double lisays = sqr * 2 - 1 + 0.00001;

        if (lisays <= ero)
        {
            cout << "YES\n";
        }
        else
        {
            cout << "NO\n";
        }
    }
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: WRONG ANSWER