求大佬修改（感激涕零）对了12个错了10个

#include<stdio.h>

long long int sax(long long int n) {
    return n * (n + 1) / 2;
}
	
int main(){
	int T,sum;
	scanf("%d",&T);
	long long int a[T],b[T];
	for(int i=0;i<T;i++){
		scanf("%lld%lld",&a[i],&b[i]);
		if(a[i]<sax(b[i])){
		printf("No");
		}
		else printf("Yes");
	}
	return 0;
}