Card Game Cheater HDU - 1528

Posted 2020-11-27 qingyuyyyyy

#include<bits/stdc++.h> 
#define PI acos(-1.0)
#define E 1e-9
#define INF 0x3f3f3f3f
#define LL long long
const int N=1000+5;
using namespace std;
int n;
bool vis[N];//vis[i]表示是否在交替路中
int match[N];//存储连接点
int e[N],ne[N],h[N];
int idx;
void add(int a,int b)
{
    e[idx]=b;
    ne[idx]=h[a];
    h[a]=idx++;
 } 
bool find(int x) {
    for(int i=h[x];i!=-1;i=ne[i]) {
        int y=e[i];
        if(!vis[y]) { 
            vis[y]=true;
            if(match[y]==-1 || find(match[y])) {
                match[y]=x;
                return true;
            }
        }
    }
    return false;
}
int solve() {
    int ans=0;
    memset(match,-1,sizeof(match));
    for(int i=1; i<=n; i++) { 
        memset(vis,false,sizeof(vis));
        if(find(i))
            ans++;
    }
    return ans;
}
int getScore(string str) { //将牌转换为分数
    int ans=0;
    if(str[0]>='2'&&str[0]<='9')
        ans+=(str[0]-'0')*10;
    else if(str[0]=='T')
        ans+=100;
    else if(str[0]=='J')
        ans+=110;
    else if(str[0]=='Q')
        ans+=120;
    else if(str[0]=='K')
        ans+=130;
    else if(str[0]=='A')
        ans+=140;

    if(str[1]=='C')
        ans+=1;
    else if(str[1]=='D')
        ans+=2;
    else if(str[1]=='S')
        ans+=3;
    else if(str[1]=='H')
        ans+=4;

    return ans;
}
int main() {
    int t;
    scanf("%d",&t);
    while(t--) {
        idx=0;
        memset(h,-1,sizeof h);
        scanf("%d",&n);
        string str;
        int scoreAdam[2000],scoreEve[2000];
        // 
        for(int i=1; i<=n; i++) 
        {
            cin>>str;
            scoreAdam[i]=getScore(str);
        }
        for(int i=1; i<=n; i++) 
        { 
            cin>>str;
            scoreEve[i]=getScore(str);
        }
        for(int i=1; i<=n; i++)
            for(int j=1; j<=n; j++)
                if(scoreEve[i]>scoreAdam[j])//eve的牌大于adam
                    add(i,j);
        printf("%d
",solve());
    }
    return 0;
}