CSP2018-03

  CSP201803-1 跳一跳

 

 

 

 

 1 //
 2 //  main.cpp
 3 //  CSP201803-1 跳一跳
 4 //
 5 //  Created by sylvia on 2021/11/6.
 6 //  Copyright © 2021 apple. All rights reserved.
 7 //
 8 
 9 #include <iostream>
10 using namespace std;
11 int main(){
12     int n,s=1,ans=0;
13     while (cin>>n && n!=0){
14         switch(n){
15             case 1:{
16                 ans+=1;
17                 s=1;
18                 break;
19             }
20             case 2:{
21                 ans+=2*s;
22                 s++;
23                 break;
24             }
25         }
26     }
27     cout<<ans<<endl;
28     
29     return 0;
30 }
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posted @ 2021-11-06 14:29  Sylvia_lee  阅读(33)  评论(0编辑  收藏  举报