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为什么会WA!请指点! 已通过测试数据。本程序未对分子分母化简,因为这没必要! //****************************************************************** //********* ********* //********* ********* //wanpi0user // //****************************************************************** #include<iostream> #include<iomanip> #include<algorithm> #include<fstream> #include<sstream> #include<cstdlib> #include<cstdio> #include<cmath> #include<string> using namespace std; int main(){ int d,L,p,i; double eps=1.0; double A,D,P; cin>>A>>L; for(i=1;i<L;i++){ D=i; P=floor(D*A+0.5); //if((P<L)&&(abs(P/D-A)<eps)){eps=abs(P/D-A);d=i;p=floor(D*A+0.5);} if(P<L&&(fabs(P/D-A)<eps)){ eps=fabs(P/D-A); d=i;p=floor(D*A+0.5);} //cout<<(P/D-A)<<'\t'<<setw(10)<<eps<<'\t'<<A<<endl; } cout<<p<<" "<<d<<endl; return 0; } Followed by:
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