AC#5and#21

#include <bits/stdc++.h>
using namespace std;
long long t,n,k,sum;

int main(){
    cin>>t;
    for(int i=1;i<=t;i++){
        cin>>n>>k;
        sum=(1+k)*k/2;
        if(sum>=n) cout<<"Yes\n";
        else cout<<"No\n";
    }
    return 0;
}