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为什么总是超时?好诡异!那位COW帮忙看看#include <iostream> #include <cstdio> using namespace std; int main() { __int64 n,m,ans,i,j; while((scanf("%I64d%I64d",&n,&m)) && !(n==0 && m==0)){ ans=1; for(i=n+m,j=1;i>=m+1;j++,i--) ans=ans*i/j; printf("%I64d\n",ans); } return 0; } Followed by:
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