ACM 170 - Clock Patience

#include <stdio.h>
#include <memory.h>

struct Poker
{
    char points;
    char color;
    int isExist;
};
struct Poker p[13][4];

int main()
{ 
    while (1)
    {
        char str[40];  
        int i, j, nIndex, k = 0, isTurn, turnCount;
        char ch, nowPoints, nowColor;  
        for (i = 0 ; i < 4; i ++)
        {
            memset(str, 0, strlen(str));
            gets(str);
            if (str[0] == '#') break;
            j = 0;
            while (str[j] != '\0')
            {
                if (j % 3 == 0)
                    ch = str[j]; 
                else if (j % 3 == 1)
                {
                    p[(j-1)/3][k].points = ch;
                    p[(j-1)/3][k].color = str[j];
                    p[(j-1)/3][k].isExist = 1;
                }
                j ++;  
             }
             k ++;
         }
         if (str[0] == '#') break;
         
         nowPoints = p[0][0].points, nowColor = p[0][0].color, turnCount = 1;
         p[0][0].isExist = 0;
         while (1)
         {
             isTurn = 0;  
             if (nowPoints == 'A') nIndex = 12;
             else if (nowPoints == 'T') nIndex = 3;
             else if (nowPoints == 'J') nIndex = 2;
             else if (nowPoints == 'Q') nIndex = 1;
             else if (nowPoints == 'K') nIndex = 0;
             else nIndex = 13 - (nowPoints - '0');
             
             for (i = 0; i < 4; i ++)
                 if (p[nIndex][i].isExist)
                 {
                     p[nIndex][i].isExist = 0;
                     nowColor = p[nIndex][i].color;
                     nowPoints = p[nIndex][i].points;
                     isTurn = 1;
                     turnCount ++;
                     break;
                 }
             if (!isTurn)
             {
                printf("%02d,%c%c\n", turnCount, nowPoints, nowColor);
                break;        
             }     
         }
    }
    return 0;
}

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