【题解】CH0802占卜DIY 模拟

题目链接
根据题意模拟

#include<cstdio>
#include<cctype>
#include<iostream>
#include<vector>
using namespace std;
#define _rep(i,a,b) for(int i=(a);i<=(b);i++)
#define _for(i,a,b) for(int i=(a);i<(b);i++)
#define rep_(i,a,b) for(int i=(a);i>=(b);i--)
char ch;
int num,ans,f=1;
vector<pair<int,int> >vx[20];
void work(int x)
{
    if(x==13)return;
    vx[x].push_back(make_pair(0,1));
    rep_(i,vx[x].size(),0)vx[x][i+1]=vx[x][i];
    vx[x][0].first=x;vx[x][0].second=1;
    pair<int,int> tmp=vx[x].back();
    vx[x].pop_back();
    work(tmp.first);
}
int main()
{
    //freopen("in.txt","r",stdin);
    _rep(i,1,13)_rep(j,1,4)
    {
        cin>>ch;
        if(isdigit(ch)){num=ch-'0';if(!num)num=10;}
        else
        {
            switch(ch){
                case 'A':num=1;break;
                case 'J':num=11;break;
                case 'Q':num=12;break;
                case 'K':num=13;break;
            }
        }
        vx[i].push_back(make_pair(num,0));
    }
    _for(i,0,vx[13].size())work(vx[13][i].first);
    _rep(i,1,12){
        f=1;
        _for(j,0,vx[i].size())
        {
            pair<int,int> tmp=vx[i][j];
            if(tmp.second&&tmp.first==i)continue;
            else f=0;
        }
        if(f)ans++;
    }
    printf("%d\n",ans);
    return 0;
}