uva 489.Hangman Judge 解题报告

题目链接：https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=430

#include <iostream>
#include <cstdio>
#include <cstring>
#include <cstdlib>
using namespace std;

const int maxn = 100;

int l, chance;
char s[maxn], s2[maxn];
int win, lose;

void guess(char ch)
{
    int bad = 1;
    for (int i = 0; i < strlen(s); i++) {
        if (s[i] == ch) {
            l--;
            s[i] = '#';
            bad = 0;
        }
    }
    if (bad) --chance;
    if (!chance) lose = 1;
    if (!l) win = 1;
}

int main()
{
    int rnd;
    #ifndef ONLINE_JUDGE
        freopen("in.txt", "r", stdin);
    #endif // ONLINE_JUDGE
    while (scanf("%d%s%s", &rnd, s, s2) == 3 && rnd != -1) {
        printf("Round %d
", rnd);
        win = lose = 0;
        l = strlen(s);
        chance = 7;
        for (int i = 0; i < strlen(s2); i++) {
            guess(s2[i]);
            if (win || lose) break;
        }

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