HDU 5228 ZCC loves straight flush

Problem Description

After losing all his chips when playing Texas Hold'em with Fsygd on the way to ZJOI2015, ZCC has just learned a black technology. Now ZCC is able to change all cards as he wants during the game. ZCC wants to get a Straight Flush by changing as few cards as possible. 

We call a five-card hand a Straight Flush when all five cards are consecutive and of the same suit. You are given a five-card hand. Please tell ZCC how many cards must be changed so as to get a Straight Flush.
  
Cards are represented by a letter('A', 'B', 'C', 'D') which denotes the suit and a number('1', '2', ⋯, '13') which denotes the rank.
  
Note that number '1' represents ace which is the largest actually. "1 2 3 4 5" and "10 11 12 13 1" are both considered to be consecutive while "11 12 13 1 2" is not.

 

Input

First line contains a single integer T(T=1000) which denotes the number of test cases.
For each test case, there are five short strings which denote the cards in a single line. It's guaranteed that all five cards are different.

 

Output

For each test case, output a single line which is the answer.

 

Sample Input

3A1 A2 A3 A4 A5A1 A2 A3 A4 C5A9 A10 C11 C12 C13

 

Sample Output

012
直接暴力上
#include<iostream>#include<cmath>#include<map>#include<vector>#include<queue>#include<cstdio>#include<cstring>#include<algorithm>using namespace std;const int maxn = 100005;int T, n, m, ans, t[4][15];char s[5];int main(){    while (scanf("%d", &T) != EOF)    {        memset(t, 0, sizeof(t));        for (int i = 0; i < 5; i++)        {            scanf("%s", s);            int k = s[1] - '0';            if (s[2]) k = k * 10 + s[2] - '0';            t[s[0] - 'A'][k] = 1;        }        ans = 4;        for (int i = 0; i < 4; i++)        for (int j = 1; j <= 10; j++)        {            int p = 0;            for (int k = 0; k <= 4; k++)            if (t[i][(j + k - 1) % 13 + 1]) { p++; ans = min(ans, 5 - p); }        }        printf("%d\n", ans);    }}