#include <iostream>
#include <string>
using namespace std;

int main(int argc, char *argv[])
{
if (argc!=2) { cout<<"Usage: crack <password>\n"; }
char charset [63] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
//string rp;
string ranpass;
string crackpass;
int c1=1;
int c2=1;
int c3=1;
int c4=1;
int c5=1;
int c6=1;
int cl=0;
int ch=0;
int cpl=0;
int tries=1;
cl=strlen(argv[1]);
if (cl==1) {ranpass="a";}
if (cl==2) {ranpass="aa";}
if (cl==3) {ranpass="aaa";}
if (cl==4) {ranpass="aaaa";}
if (cl==5) {ranpass="aaaaa";}
if (cl==6) {ranpass="aaaaaa";}
cl--;
crackpass=argv[1];
cout <<"\nStarting crack...\n";
while (ranpass!=crackpass)
{
tries++;
if (c1>61)
{
c1=0;
ranpass[ch+1]=charset [c2];
c2++;
}
if (c2>61)
{
c2=0;
ranpass[ch+2]=charset [c3];
c3++;
}
if (c3>61)
{
c3=0;
ranpass[ch+3]=charset [c4];
c4++;
}
if (c4>61)
{
c4=0;
ranpass[ch+4]=charset [c5];
c5++;
}
if (c5>61)
{
c5=0;
ranpass[ch+5]=charset [c6];
c6++;
}
if (c6>61)
{
c6=0;
//ranpass[ch+6]=charset [c6];
}
//if (c4>61)
//{
//c3=0;
//ranpass[ch+3]=charset [c4];
//c4=0;
//}
ranpass [ch]=charset [c1];
c1++;
}
cout <<"\nCracking finished.\n";
cout <<"It took "<<tries <<" tries to crack.\n";
return 0;
}