B - Halloween Costumes 

 1 #include <iostream>
 2 #include <algorithm>
 3 #include <cstring>
 4 #include <cstdio>
 5 #include <string>
 6 #include <map>
 7 #include <cmath>
 8 #include <vector>
 9 
10 #define Faster ios::sync_with_stdio(false),cin.tie(0)
11 #define Read freopen("in.txt","r",stdin),freopen("out.txt","w",stdout)
12 #define Close fclose(stdin),fclose(stdout)
13 const int maxn = 150;
14 using namespace std;
15 const int MOD = 1e9+7;
16 typedef long long ll;
17 
18 int a[maxn];
19 int dp[maxn][maxn];
20 //dp[i][j],从区间i -> j 穿的最少的衣服数量
21 
22 int main(){
23     Faster;
24     int t;
25     cin >> t;
26     int cnt = 0;
27     while(t--){
28         cnt++;
29         int n;
30         cin >> n;
31         for(int i = 1;i <= n;i++){
32             cin >> a[i];
33         }
34         //初始化，每件都穿上
35         for(int i = 1;i <= n;i++){
36             for(int j = i;j <= n;j++){
37                 dp[i][j] = j-i+1;
38             }
39         }
40         for(int i = n-1;i >= 1;i--){
41             for(int j = i+1;j <= n;j++){
42                 dp[i][j] = dp[i+1][j] + 1;
43                 for(int k = i;k <= j;k++){
44                     if(a[i] == a[k]){
45                         dp[i][j] = min(dp[i][j], dp[i+1][k-1] + dp[k][j]);
46                     }
47                 }
48             }
49         }
50         cout << "Case " << cnt << ": " << dp[1][n] << endl;
51     }   
52     return 0;
53 }

 

posted @ 2018-06-19 20:06  ouyang_wsgwz  阅读(228)  评论(0)    收藏  举报