Everything negative - pressure, challenges - is all an opportunity for me to rise.

简单数学题，推出结果后直接计算即可不取double 会wrongView Code #include<cstdio>#include<cstring>__int64 C(__int64 n, __int64 m){ __int64 s = 1; int i, j; for (i=1,j=n; i<=m; i++, j--) s = s * j / i; return s;}int main(){ int n,s; int i,j,k; while(scanf("%d%d",&n,&s)!=EOF) { double sum=0, Read More