C++ :: Write A Password Prompt That Gives A User Only Certain Attempts

I'm trying to write this c++ programe:

Write a password prompt that gives a user only a certain number of password entry attempts, so that the user cannot easily write a password cracker.

Using FOR Loop. I know this can be easily done using while loop. But I want to know how to do it with for loop aswell.

Here is what I have so far:

Code:
#include <iostream>
#include <string>
using namespace std;
int main ()

[Code] ....

I don't see where the problem is.. The program just executes and does nothing.