Codeforces Round #427 (Div. 2) 835D - Palindromic characteristics dp

835D：http://codeforces.com/problemset/problem/835/D

emmmm不太会，附大佬代码

#include<iostream>
#include<algorithm>
#include<string.h>
using namespace std;
int len,ans;
char t[5005];
int dp[5005][5005];
int num[5005];
int main()
{
    while (cin>>t)
    {
        memset(dp, 0, sizeof(dp));
        memset(num, 0, sizeof(num));
        len = strlen(t);
        for (int i = 0; i < len; i++)
        {
            dp[i][i] = 1;
            num[1]++;
            if (t[i] == t[i + 1] && i < len-1)
            {
                dp[i][i + 1] = 2;
                num[2]++;
                num[1]++;
            }
        }
        for (int i = 1; i<=len; i++)
            for (int j = 0; j + i + 1 < len; j++)
            {
                if (t[j] == t[j + i + 1] && dp[j + 1][j + i])
                    dp[j][j + i + 1] = dp[j][j + i / 2] + 1;
                for (int k = 1; k <= dp[j][j + i + 1]; k++)
                    num[k]++;
            }
        for (int i = 1; i <= len; i++)
        {
            cout << num[i];
            i != len ? cout << " " : cout << endl;
        }
    }
    return 0;
}