C++ :

#include <iostream>
using namespace std;
char line[101];
char pwd[101];
// 检查从 str 开始、长度为 l 的密码是否合规
bool check(char * str, int l) {
if (l < 6 || l > 12)
return false;
bool hasC = false, hasL = false, hasD = false, hasS = false;
for (int i = 0; str[i] != '\0'; i++) {
if ('A' <= str[i] && str[i] <= 'Z') {
hasC = true;
} else if ('a' <= str[i] && str[i] <= 'z') {
hasL = true;
} else if ('0' <= str[i] && str[i] <= '9') {
hasD = true;
} else if (str[i] == '!' || str[i] == '@' ||
str[i] == '#' || str[i] == '$') {
hasS = true;
} else
return false;
}
if (!hasS)
return false;
if (hasC + hasL + hasD < 2)
return false;
return true;
}
int main() {
cin >> line;
// 按逗号对输入进行切分，并依次判断
int len = 0;
for (int i = 0; line[i] != '\0'; i++) {
if (line[i] != ',') {
pwd[len] = line[i];
len++;
} else {
pwd[len] = '\0';
if (check(pwd, len))
cout << pwd << endl;
len = 0;
}
}
if (len > 0) {
pwd[len] = '\0';
if (check(pwd, len))
cout << pwd << endl;
}
return 0;
}