uva 11584（动态规划起步第四天 线性DP）

 1 #include <iostream>
 2 #include <cstdio>
 3 #include <cstring>
 4 #include <algorithm>
 5 
 6 #define REP(i,N) for (int i = 0;i < (N);i++)
 7 #define REP_1(i,N) for (int i = 1;i < (N);i++)
 8 #define REP_2(i,be,en) for (int i = (be);i < (en);i++)
 9 #define DWN(i,N) for (int i = N;i >= 0;i--)
10 #define INF 0x3f3f3f3f
11 #define MAXN 1010
12 using namespace std;
13 
14 char str[MAXN];
15 int dp[MAXN];
16 
17 bool is_palindromes(int i,int j) {
18     if (i >= j) return 1;
19     if (str[i] == str[j]) return is_palindromes(i + 1,j - 1);
20     else return 0;
21 }
22 
23 int main () {
24     int T;
25     freopen("1.txt","r",stdin);
26     cin >> T;
27     while (T--) {
28         scanf("%s",str + 1);
29         int len = strlen(str + 1);
30         REP(i,len + 1) {
31             dp[i] = i;
32             REP(j,i) {
33                 if (is_palindromes(j + 1,i)) {
34                     dp[i] = min(dp[j] + 1,dp[i]);
35                 }
36             }
37         }
38         cout << dp[len] << endl;
39     }
40 }