Question

杭电2092，怎么叫上去老师wrong answer.去指点？

#include<iostream>
#include<string.h>
#include<math.h>
using namespace std;
int main()
{
int n,m,c;
double b;
while(cin>>n>>m)
{
if(n==0&&m==0) break;
b=n*n-4*m;
c=sqrt(b)*10;
if(b<0)
cout<<"No"<<endl;
else if(c%10==0)
cout<<"Yes"<<endl;
else
cout<<"No"<<endl;
}
return 0;
}
运行还可以啊。

Answer 1

#include <stdio.h>
int main(){
int i,j,k,n,m,a,b;
while(scanf("%d%d",&m,&n)&&(n||m)){
for(i=-9999;i<10000;i++)
if(i*(m-i)==n)
{printf("Yes\n"); break;}
if(i*(m-i)!=n) printf("No\n");
}

return 0;}