歪比巴卜(侵权立删)

参考准的代码，运行时间少大约30ms(删去第16行的==1)

#include<bits/stdc++.h>
using namespace std;
int main(){
	long long a,n,e,d,m,op,up,x,y;
	cin>>a;
	for(int i=1;i<=a;i++){
		cin>>n>>e>>d;
		m=n-e*d+2;
		op=m*m-4*n;
		if(op<0){
			cout<<"NO\n";
			continue;
		}
		else{
			int up=sqrt(op);
			if((m+up)%2){
				cout<<"NO\n";
				continue;
			}
			x=(m+up)/2;
			y=m-x;
			cout<<min(x,y)<<" "<<max(x,y)<<endl;
		}
	}
	
	return 0;
}