OCR GCSE Python Challenges

#1 Master Mind

Generate a random four digit number. The player has to keep inputting four digit numbers until they guess the randomly generated number. After each unsuccessful try it should say how many numbers they got correct, but not which position they got right. At the end of the game should congratulate the user and say how many tries it took.

Solution:

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import random

def gen4digitrandom() :
    gen4num = str(random.randint(1000,10000))
    print('random number is :', gen4num)
    return gen4num.strip()

def guess4digitnum():
    guess = input("Enter a 4 Digit Number. 0 to Quit")
    return guess.strip()

def checkinput(guess,random,cnt,loop):
     print(loop,'. You entered :', guess)
     if guess == random:
         return 99  #true
     else:
         g1 = list(str(guess))
         r1 = list(str(random))
         for i in range(len(g1)):
             if g1[i] in r1:
                 cnt += 1
               #  print(g1[i])
             else:
                 pass
     return cnt

def main():
    num = gen4digitrandom()
    #print('Random 4 digit number is :',num)
    guess = guess4digitnum()
#    print('You entered :', guess)
    cnt = 0
    loop = 0
    if guess != '0':
        res = checkinput(guess,num,cnt,loop)
        if res == 99:
            print("BINGO! You got it right! Your Number is :",guess," and Random Number is: ", num)
        else:
            # Increase the loop check to allow more tries.
            while ( loop <10  and guess != '0' ):
                if res == 99:
                    print("BINGO! You got it right! Your Number is :", guess, " and Random Number is: ", num)
                    break
                else:
                    print("You matched :", res, " digits.  Try Again! Count is ::", loop)
                    guess = guess4digitnum()
                    loop += 1
                    res = checkinput(guess, num, cnt, loop)


        if res != 99 and loop >=10:
            print("You are out of lives!!! Try Later!!")
    else:
        print("You lost!!")
main()

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Extension 1 # Let the user pick an easy mode which shows the user which position that they guessed correctly.

Solution:

import random

def gen4digitrandom() :
    gen4num = str(random.randint(1000,10000))
    print('random number is :', gen4num)
    return gen4num.strip()

def guess4digitnum():
    guess = input("Enter a 4 Digit Number. 0 to Quit")
    return guess.strip()


def checkinput_E(guess, random, cnt, loop):
    print("Easy Mode\n+++++++")
    print(loop, '. You entered :', guess)
    if guess == random:
        return 99  # true
    else:
        g1 = list(str(guess))
        r1 = list(str(random))
        match = []
        for i in range(len(g1)):
            if g1[i] in r1:
                print('Chekcing',g1[i],'in ',r1)
                cnt += 1
                #for j in range(len(g1)):
                for k in range(len(g1)):
                    if g1[i] == r1[k]:
                        match.append(k)
                        break
                    else:
                        pass
            #  print(g1[i])
            else:
                pass
    print("You matched positions :", match )
    return cnt

def checkinput(guess,random,cnt,loop):
     print(loop,'. You entered :', guess)
     if guess == random:
         return 99  #true
     else:
         g1 = list(str(guess))
         r1 = list(str(random))
         for i in range(len(g1)):
             if g1[i] in r1:
                 cnt += 1
               #  print(g1[i])
             else:
                 pass
     return cnt

def main():
    mode = input("Do you want start the game in E(asy) or H(ard) mode? \n Easy mode shows the matching position.")
    num = gen4digitrandom()
    #print('Random 4 digit number is :',num)
    guess = guess4digitnum()
    cnt = 0
    loop = 0
    if guess != '0':
        if mode.strip() != 'E':
            res = checkinput(guess,num,cnt,loop)
        else:
            res = checkinput_E(guess, num, cnt, loop)

        if res == 99:
            print("BINGO! You got it right! Your Number is :",guess," and Random Number is: ", num)
        else:
            # Increase the loop check to allow more tries.
            while ( loop <10  and guess != '0' ):
                if res == 99:
                    print("BINGO! You got it right! Your Number is :", guess, " and Random Number is: ", num)
                    break
                else:
                    print("You matched :", res, " digits.  Try Again! Count is ::", loop)
                    guess = guess4digitnum()
                    loop += 1
                    if mode.strip() != 'E':
                        res = checkinput(guess, num, cnt, loop)
                    else:
                        res = checkinput_E(guess, num, cnt, loop)


        if res != 99 and loop >=10:
            print("You are out of lives!!! Try Later!!")
    else:
        print("You lost!!")
main()

Extension 2 # Let the user pick a hard mode that gives five digits instead of four.

Solution:

import random

def gen4digitrandom() :
    gen4num = str(random.randint(1000,10000))
    print('random number is :', gen4num)
    return gen4num.strip()

def guess4digitnum():
    guess = input("Enter a 4 Digit Number. 0 to Quit")
    return guess.strip()

def checkinput_E(guess, random, cnt, loop):
    print("Easy Mode\n+++++++")
    print(loop, '. You entered :', guess)
    if guess == random:
        return 99  # true
    else:
        g1 = list(str(guess))
        r1 = list(str(random))
        match = []
        for i in range(len(g1)):
            if g1[i] in r1:
                print('Chekcing',g1[i],'in ',r1)
                cnt += 1
                #for j in range(len(g1)):
                for k in range(len(g1)):
                    if g1[i] == r1[k]:
                        match.append(k)
                        break
                    else:
                        pass
            #  print(g1[i])
            else:
                pass
    print("You matched positions :", match )
    return cnt
# Hard mode - 5 digits
def gen5digitrandom() :
    gen5num = str(random.randint(10000,100000))
    print('random number is :', gen5num)
    return gen5num.strip()

def guess5digitnum():
    guess = input("Enter a 5 Digit Number. 0 to Quit")
    return guess.strip()

def checkinput(guess,random,cnt,loop):
     print(loop,'. You entered :', guess)
     if guess == random:
         return 99  #true
     else:
         g1 = list(str(guess))
         r1 = list(str(random))
         for i in range(len(g1)):
             if g1[i] in r1:
                 cnt += 1
               #  print(g1[i])
             else:
                 pass
     return cnt

def main():
    mode = input("Do you want start the game in E(asy) or H(ard) mode? \n Easy mode shows the matching position.")

    if mode.strip() == 'E':
        num = gen4digitrandom()
        #print('Random 4 digit number is :',num)
        guess = guess4digitnum()
    else:
        num = gen5digitrandom()
        # print('Random 5 digit number is :',num)
        guess = guess5digitnum()
    cnt = 0
    loop = 0
    if guess != '0':
        if mode.strip() != 'E':
            res = checkinput(guess,num,cnt,loop)
        else:
            res = checkinput_E(guess, num, cnt, loop)

        if res == 99:
            print("BINGO! You got it right! Your Number is :",guess," and Random Number is: ", num)
        else:
            # Increase the loop check to allow more tries.
            while ( loop <10  and guess != '0' ):
                if res == 99:
                    print("BINGO! You got it right! Your Number is :", guess, " and Random Number is: ", num)
                    break
                else:
                    print("You matched :", res, " digits.  Try Again! Count is ::", loop)
                    guess = guess4digitnum()
                    loop += 1
                    if mode.strip() != 'E':
                        res = checkinput(guess, num, cnt, loop)
                    else:
                        res = checkinput_E(guess, num, cnt, loop)


        if res != 99 and loop >=10:
            print("You are out of lives!!! Try Later!!")
    else:
        print("You lost!!")
main()