代码如下：

#include"bits/stdc++.h"
using namespace std;
const int MAXN=12+10;
bool have_lower_letter[MAXN],have_upper_letter[MAXN],have_number[MAXN],have_special_character[MAXN],licit[MAXN];
int password_len[MAXN],index=1,index2=1;
char g,password[20+10][100+10],diolog[100+10];
int main()
{
	for(int i=1;i<=MAXN;i++)
	{
		licit[i]=true;
	}
	cin>>diolog;
	for(int i=0;i<strlen(diolog);i++)
	{
		if(diolog[i]!=',')
		{
			password_len[index]++;
			password[index][index2]=diolog[i];
			index2++;
			if(diolog[i]>=65&&diolog[i]<=90)
			{
				have_upper_letter[index]=true;
			}
			else if(diolog[i]>=97&&diolog[i]<=122)
			{
				have_lower_letter[index]=true;
			}
			else if(diolog[i]>=48&&diolog[i]<=57)
			{
				have_number[index]=true;
			}
			else if(diolog[i]=='!'||diolog[i]=='@'||diolog[i]=='#'||diolog[i]=='$')
			{
				have_special_character[index]=true;
			}
			else
			{
				licit[index]=false;
			}
		}
		else
		{
			index++;
			index2=1;
		}
	}
	for(int i=1;i<=index;i++)
	{
		if(licit[i])
		{
			if((have_upper_letter[i]&&have_lower_letter[i]&&have_special_character[i])||(have_upper_letter[i]&&have_number[i]&&have_special_character[i])||(have_lower_letter[i]&&have_number[i]&&have_special_character[i]))
			{
				for(int j=1;j<=password_len[i];j++)
				{
					cout<<password[i][j];
				}
				cout<<endl;
			}
		}
	}
}