Uva--331(暴力)

2014-07-15 22:42:55

题意&思路:不说啥了,感冒了,脑子一团粥。

 1 #include <cstdio>
 2 #include <iostream>
 3 using namespace std;
 4 
 5 int n,cnt,s[10];
 6 
 7 bool Isorder(){
 8     for(int i = 0; i < n - 1; ++i)
 9         if(s[i] > s[i + 1])
10             return false;
11     return true;
12 }
13 
14 void Dfs(){
15     if(Isorder()){
16         ++cnt;
17         return;
18     }
19     int tem;
20     for(int i = 0; i < n - 1; ++i){
21         if(s[i] > s[i + 1]){
22             tem = s[i]; s[i] = s[i + 1]; s[i + 1] = tem;
23             Dfs();
24             tem = s[i]; s[i] = s[i + 1]; s[i + 1] = tem;
25         }
26     }
27 }
28 
29 int main(){
30     int Case = 0;
31     while(scanf("%d",&n) == 1 && n){
32         for(int i = 0; i < n; ++i)
33             scanf("%d",&s[i]);
34         cnt = 0;
35         if(!Isorder())
36             Dfs();
37         printf("There are %d swap maps for input data set %d.\n",cnt,++Case);
38     }
39     return 0;
40 }        

 

posted @ 2014-07-15 22:44  Naturain  阅读(118)  评论(0编辑  收藏  举报