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为什么老超时???#include<iostream.h> void main() { long double n,k; long double s; for(;;) { s=1; cin>>n>>k; if(n==0&&k==0) break; for(long double i=1;i<=k;i++) { s*=n+1-i; s/=i; } cout<<s<<endl; } } Followed by:
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