6-2、a113: 99遊戲

#include<bits/stdc++.h>
using namespace std;
struct Player//玩家的結構
{
    char name;//名字
    int index;//出牌數
    string card[13];//牌內容
}player[4];

int main()
{
    for(int i = 0 ; i < 4 ; i++)
    {//依序讀入4位玩家資料
        cin >> player[i].name;
        player[i].index = 0;
        for(int j = 0 ; j < 13 ; j++)
            cin >> player[i].card[j];
    }
    int total = 0;//總數字
    int i = 0;
    int add = 1;//出牌方向，1為向下，-1為向上
    while(1)
    {
        char newcard = player[i].card[player[i].index][0];
        if (newcard == 'A')
        {//A為歸零牌
            player[i].index++;
            total = 0;
            if (player[i].index == 13)
            {//該玩家出牌結束
                cout << player[i].name << endl;
                cout << total << endl;
                return 0;
            }
        }
        else if (newcard == '4')
        {//4為迴轉牌
            player[i].index++;
            if (player[i].index == 13)
            {//該玩家出牌結束
                cout << player[i].name << endl;
                cout << total <<endl;
                return 0;
            }
            add *= -1;//轉向
        }
        else if (newcard == '5')
        {//5為指定牌(出此牌不用累加數字，換下一位出牌者出牌)
            player[i].index++;
            if (player[i].index == 13)
            {//該玩家出牌結束
                cout << player[i].name << endl;
                cout << total << endl;
                return 0;
            }
        }
        else if (newcard == '1')
        {//10為加減10牌(將累加數字加10，但如累加數字加10會超過99則減10)
            player[i].index++;
            if (total <= 89)
                total += 10;
            else total -= 10;
            if (player[i].index == 13)
            {//該玩家出牌結束
                cout << player[i].name << endl;
                cout << total << endl;
                return 0;
            }
        }
        else if (newcard=='J')
        {//J為跳過牌
            player[i].index++;
            if (player[i].index == 13)
            {//該玩家出牌結束
                cout << player[i].name << endl;
                cout << total <<endl;
                return 0;
            }
        }
        else if (newcard=='Q')
        {//Q為加減20牌(將累加數字加20，但如累加數字加20會超過99則減20)
            player[i].index++;
            if (total <= 79)
                total += 20;
            else total -= 20;
            if (player[i].index == 13)
            {//該玩家出牌結束
                cout << player[i].name << endl;
                cout << total << endl;
                return 0;
            }
        }
        else if (newcard=='K')
        {//K為99牌(出此牌不管累加數字為何，直接累加到99，當累加數字已為99時可以再出K，累加數字保持99)
            player[i].index++;
            total = 99;
            if (player[i].index == 13)
            {//該玩家出牌結束
                cout << player[i].name << endl;
                cout << total << endl;
                return 0;
            }
        }
        else
        {//其他牌
            player[i].index++;
            total += newcard - '0';
            if (total > 99)
            {
                cout << player[i].name << endl;
                cout << 13 - player[i].index << endl;
                return 0;
            }
        }
        i += add; //換下一個玩家
        if (i == -1) i = 3;
        else if (i == 4) i = 0;
    }

    return 0;
}