#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
#include<cmath>
using namespace std;
const int N=1000;
int main()
{
int i,n,sum=0,m=1;
for(i=0;;i++){
cin>>n;
if(n==0) break;
if(n==2){
sum+=2*m;
m++;
}else if(n==1){
m=1;
sum+=1;
}
}
cout<<sum;
}
CCF认证 201803-1:跳一跳(C++)
猜你喜欢
转载自blog.csdn.net/weixin_44652687/article/details/104728664
今日推荐
周排行