UVa 489，紫书P79，刽子手游戏

#include <stdio.h>
#include <string.h>

int win ,lose;
int left;
int counts = 0;
char str1[110],str2[110];

void guess(char ch)
{
    bool flag = false;
    for(int i=0;i<strlen(str1);i++)
    {
        if(ch==str1[i])
        {
            str1[i] = ‘ ‘;
            flag = true;
            left--;
        }
    }
    if(!flag) counts++;
    if(counts>6) lose = 1;
    if(left==0) win = 1;
}

int main()
{
    freopen("input.txt","r",stdin);
    int cases;
    while(scanf("%d",&cases))
    {
        counts = 0;
        if(cases==-1) break;
        printf("Round %d\n",cases);
        scanf("%s%s",str1,str2);
        win = lose = 0;

        left = strlen(str1);
        for(int i=0;i<strlen(str2);i++)
        {
            guess(str2[i]);
            if(win||lose)
                break;
        }

        if(win) printf("You win.\n");
        else if(lose) printf("You lose.\n");
        else printf("You chickened out.\n");
    }
    return 0;
}