// HW1 Password Inspection System

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

#define MAX_STRING 20


int main()
{
    char str1[MAX_STRING];
    char str2[MAX_STRING];
    char str3[MAX_STRING];
    //string test1;
    //string test2;
	char c;
    int count = 3;
    int i=0;
    int z=0;
    int x=0;

	do{

		 cout << "Please input password --> ";
		 gets(str1);
		 int len=strlen(str1);
		 for(z=0;z<=len;z++)
		 {
		     if( str1[z]!=' ')
		     str1[x++] = str1[z];
		 }
		 str1[x]='\0';

		 for(i=1;i<4;i++)
		 {
		     cout << "------Password Inspection System----- \n";
			 cout << "Please input password to inspect--> ";
			 gets(str2);
          int  len=strlen(str2);
        //把空白字元取代
         for(x=0,z=0;z<=len;z++)
		 {
		     if( str2[z]!=' ')
		     str2[x++] = str2[z];
		 }
		 str2[x]='\0';
		 cout<<str2<<endl;

			if(!strcmp(str1,str2))

			 {
				 cout << "your password is right \n";
				 break;
			 }
			 else
			 {
				 count--;
				 cout << "your password is wrong,please input password again!!! \n";
				 cout << "(you have only " << count <<" times to input!!!) \n";
				 continue;
			 }
			 //cout << "you have no chance!!! \n";
		  }
		  cout << "continue ??? (if want to continue, input 'y')\n";
		  cin >> c;
	}while(c == 'y');

    system("pause");
    return 0;
}