/*
NOIP1998阅读程序写结果 普及组3.2
/
#include <iostream>
#include <cstdio>
#include <cmath>
using namespace std;
const int n=10;
int s;
int co(int i1) //2 //c(n,m)=n!/(m!(n-m)!)
{
int j1,s1;
s1=n; //s1=10
for(int j1=n-1;j1>=n-i1+1;--j1) //j1=9 j1=9 c(10,i1)
s1=(s1*j1)/(n-j1+1); //s1=(10*9)/2
return s1;
} int main() { s=n+1; //11 for(int i=2;i<=n;i++) { //cout<<" "<<co(i)<<endl; s=s+co(i); } printf("S=%d",s); } /* 答案：S= */
