样例过了，但是0分

Seven_tc @ 2024-04-25 22:24:21

#include <iostream>
#include <iomanip>
#include <sstream>
using namespace std;
int cnt_a, cnt_A, cnt_1, cnt_ch, cnt_bad;
string s, a;

int main() {
    cin >> s;
    for (auto& c : s) {
        if (c == ',')
            c = ' ';
    }
    stringstream ss(s);
    while (ss >> a) {
        cnt_a = 0, cnt_A = 0, cnt_1 = 0, cnt_ch = 0, cnt_bad = 0;
        if (a.length() <= 12 && a.length() >= 6) {
            for (auto &c : a) {
                if (isalpha(c)) {
                    cnt_a = 1;
                } else if (isupper(c)) {
                    cnt_A = 1;
                } else if (isdigit(c)) {
                    cnt_1 = 1;
                } else if (c == '!' || c == '#' || c == '@' || c == '$') {
                    cnt_ch = 1;
                } else {
                    cnt_bad = 1;
                }
            }
            if (cnt_bad) continue;
            if ((cnt_a + cnt_A + cnt_1 >= 2) && cnt_ch) {
                cout << a << endl;
            }
        }
    }

    return 0;
}

by elpsconr @ 2024-04-25 23:46:37

isalpha判断的是所有字母，不论大小写。ABCD@!可以hack

by elpsconr @ 2024-04-25 23:49:17

ABCD@!aa是可以作为密码的，而你这个代码却输不出来

by Seven_tc @ 2024-04-27 13:57:32

@elpsconr 太厉害啦

#include <iostream>
#include <iomanip>
#include <sstream>
using namespace std;
int cnt_a, cnt_A, cnt_1, cnt_ch, cnt_bad;
string s, a;

int main() {
    cin >> s;
    for (char& c : s) {
        if (c == ',')
            c = ' ';
    }
    stringstream ss(s);
    while (ss >> a) {
        cnt_a = 0, cnt_A = 0, cnt_1 = 0, cnt_ch = 0, cnt_bad = 0;
        if (a.length() <= 12 && a.length() >= 6) {
            for (char &c : a) {
                if (islower(c)) {
                    cnt_a = 1;
                } else if (isupper(c)) {
                    cnt_A = 1;
                } else if (isdigit(c)) {
                    cnt_1 = 1;
                } else if (c == '!' || c == '#' || c == '@' || c == '$') {
                    cnt_ch = 1;
                } else {
                    cnt_bad = 1;
                }
            }
            if (cnt_bad) continue;
            if ((cnt_a + cnt_A + cnt_1 >= 2) && cnt_ch) {
                cout << a << endl;
            }
        }
    }

    return 0;
}