PIN GUESSING GAME

C VERSION

16KB

PinGuessingGame-v1.0.0.c-linux-x86-64

Open

This program asks the user to enter a pin. if a match is found, user access to the system is granted.

PINGUESSINGGAME.C

/*######################################################################################
# Dev: cnd.dev
# Program Name: N/A
# Version: 1.0.0
#  - Major.Minor.Update/BuildNumber
# Date: 291027JUN25
# Filename: pinGuessingGame.c
# Dependency: N/A
# Compile Cmd: gcc -m64 -O1 pinGuessingGame.c -o pinGuessingGame-v1.0.0-linux-x86-64
# Synopsis:
#  - Overview: describes what the program does, how it works, and its key components
#  - Technical: ...
######################################################################################*/

#include <stdio.h>
#include <stdbool.h>

int main() {
    int enteredPIN;
    bool accessGranted = false;
    
    puts("PIN NUMBER GUESSING GAME");
    
    do {
      printf("Enter PIN to unclock the system: ");
      scanf("%4d", &enteredPIN);
      if (enteredPIN != 1337){
          printf("Incorrect PIN. Try again...\n");
          puts("HINT: System PIN has four digits\n");
      }
      else{
          printf("Access granted - System PIN cracked!");
          accessGranted = true;
      }
    } while (!accessGranted);
}

FUTURE IMPROVEMENTS

• Lockout mechanism

• Rate limiting

---

C++ VERSION

PINGUESSINGGAME.CPP

17KB

pinGuessingGame-v1.0.0.cpp-linux-x86-64

Open

/*######################################################################################
# Dev: cnd.dev
# Program Name: N/A
# Version: 1.0.0
# Date: 211310NOV25
# Filename: pinGuessingGame.cpp
# Dependency: N/A
# Compile Cmd: g++ -m64 -O1 pinGuessingGame.cpp -o pinGuessingGame-v1.0.0-linux-x86-64
# Synopsis:
#  - Overview: describes what the program does, how it works, and its key components
#  - Technical: ...
######################################################################################*/

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

int main(int argc, char *argv[])
{
  int enteredPIN;
  string errorMsg1 = "Incorrect PIN. Try again...\nHINT: System PIN has four digits\n";
  string errorMsg2 = "Invalid entry. Try again...\n";
  bool accessGranted = false;

  cout << "PIN NUMBER GUESSING GAME" << endl;

  do{
    cout << "Enter access PIN to unlock the system: ";
    cin >> enteredPIN;

    //check immediately if NOT an integer
    if(cin.fail()){
      cin.clear();
      cin.ignore(numeric_limits<streamsize>::max(), '\n');
      cout << errorMsg2;
      continue;
    }

    //check userInput against criteria
    if(enteredPIN != 1337){
      cout << errorMsg1;
    }
    //check if userInput isn't a four digit pin
    else if(enteredPIN < 0 || enteredPIN > 9999){
      cout << errorMsg2;
    }
    else{
      cout <<"Access granted!" << endl;
      accessGranted = true;
    }
  } while(!accessGranted);

  return 0;
}

PYTHON3 VERSION

Readers may notice that I include semicolons at the end of some statements. Although Python allows semicolons, they are not typically used as statement terminators. In Python, a semicolon functions only as a statement separator, and placing one at the end of a line has no practical effect. My use of semicolons is an intentional personal choice: including them in my Python code helps me maintain familiarity with C and C++, where semicolons are required, and preserves the rhythm of writing C/C++ syntax when switching between languages

PINGUESSINGGAME.PY

721B

pinGuessingGame.py

Open

######################################################################################
# Dev: cnd.dev
# Program Name: N/A
# Version: 1.0.0
# Date: 220946NOV25
# Filename: pinGuessingGame.py
# Dependency: N/A
# Compile Cmd: N/A
# Synopsis:
#  - Overview: describes what the program does, how it works, and its key components
#  - Technical: ...
######################################################################################

#!/usr/bin/env python3

def main() -> None:

    errorMsg1 = "Incorrect PIN. Try again...\nHINT: System PIN has four digits\n";
    errorMsg2 = "Invalid entry. Try again...\n";
    accessGranted = False;

    print("PIN NUMBER GUESSING GAME\n");

    while(not(accessGranted)):
        try:
            enteredPIN = int(input("Enter access PIN to unlock the system: "));
        except Exception:
            print(errorMsg2);
            continue;

        if(enteredPIN < 0 or enteredPIN > 9999):
            print(errorMsg2);
        elif(enteredPIN != 1337):
            print(errorMsg1);
        else:
            print("Access granted!\n");
            accessGranted = True;

if __name__ == "__main__":
    main();

x86-64 ASSEMBLY VERSION