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FT……Re:好无聊的题目，还以为是在有理数域上分解。In Reply To:好无聊的题目，还以为是在有理数域上分解。 Posted by:zhucheng at 2004-12-03 23:46:14 > #include <iostream>
> #include <iomanip>
> using namespace std;
>
> int main()
> {
> int a,b,c,n;
> while(cin>>n)
> {
> if(n<2)
> {
> while(n>=0)
> {
> n--;
> cin>>a;
> }
> cout<<"YES"<<endl;
> }
> else if(n==2)
> {
> cin>>a>>b>>c;
> if(b*b>=4*a*c)
> cout<<"NO"<<endl;
> else
> cout<<"YES"<<endl;
> }
> else
> {
> while(n>=0)
> {
> n--;
> cin>>a;
> }
> cout<<"NO"<<endl;
> }
> }
> return 0;
> }
>
>
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