How would i add a leaderboard to this code? - python-3.9

Question

a picture of my task
Im a GCSE student whose trying to learn python. Im confused to how i would add a leaderboard to this code, i've tried a number of time but it isn't working. I've included a picture of the task i'm supposed to do. Heres the code. I've never made a leaderboard before so i don't know how to start it.
from random import randint
import time
count = 0
num = 0
integer = 0
score = 0
print("Welcome to the Multiplication Test")
first_name = input("Please enter your first name: ")
second_name = input("Please enter your surname: ")
Username = first_name[0:3].lower() + second_name[0:3].upper()
print("Your username is: " + Username)
print("Please write in capital letters either: -EASY- -STANDARD- -HARD-")
difficalty = input("")
if (difficalty == "EASY"):
print("Easy mode has been selected")
print("There will be 10 questions for you to answer")
start = input("Press enter to start the game")
print("the timer has started")
begin = time.time()
while count < 10:
x = randint (1, 10)
y = randint (1, 10)
print ("The multiplication problem is ",x, "*", y)
a = int (input ("What is your guess?"))
count = count + 1
if a == x*y:
print ("That is correct.")
end = time.time()
score = score + 1
else:
print ("That is not correct. The correct answer is",x*y)
elapsed = end - begin
elapsed = int(elapsed)
print("You got " + str(score) + " out of 10 and it took you " + str(elapsed) + " seconds")
elif (difficalty == "STANDARD"):
print("Standard mode has been selected")
print("There will be 10 questions for you to answer")
start = input("Press enter to start the game")
print("the timer has started")
begin = time.time()
while num < 10:
x = randint (2, 12)
y = randint (2, 12)
print ("The multiplication problem is ",x, "*", y)
b = int (input ("What is your guess?"))
num = num + 1
if b == x*y:
print ("That is correct.")
end = time.time()
score = score + 1
else:
print ("That is not correct. The correct answer is",x*y)
elapsed = end - begin
elapsed = int(elapsed)
print("You got " + str(score) + " out of 10 and it took you " + str(elapsed) + " seconds")
elif (difficalty == "HARD"):
print("Hard mode has been selected")
print("There will be 10 questions for you to answer")
start = input("Press enter to start the game")
print("the timer has started")
begin = time.time()
while integer < 10:
x = randint (3, 15)
y = randint (3, 15)
print ("The multiplication problem is ",x, "*", y)
c = int (input ("What is your guess?"))
integer = integer + 1
if c == x*y:
print ("That is correct.")
end = time.time()
score = score + 1
else:
print ("That is not correct. The correct answer is",x*y)
elapsed = end - begin
elapsed = int(elapsed)
print("You got " + str(score) + " out of 10 and you took " + str(elapsed) + " seconds")

Answer 1

You could make a leaderboard as a list of username, score tuples:
# start of program
easy_leaderboard = []
# when printing the scores
easy_leaderboard.append((username, score))
# to print the leaderboard
for username, score in sorted(easy_leaderboard, key=lambda t: -t[0]):
print(f"{username): {score}")
Incidentally, rather than writing out the same code three times, you could abstract it:
def run_game(difficulty_name, range_min, range_max, username, leaderboard):
print(f"{difficulty_name.title()} mode has been selected")
print("There will be 10 questions for you to answer")
start = input("Press enter to start the game")
print("the timer has started")
begin = time.time()
while count < 10:
x = randint (range_min, range_max)
y = randint (range_min, range_max)
print ("The multiplication problem is ",x, "*", y)
a = int (input ("What is your guess?"))
count = count + 1
if a == x*y:
print ("That is correct.")
end = time.time()
score = score + 1
else:
print ("That is not correct. The correct answer is",x*y)
elapsed = end - begin
elapsed = int(elapsed)
print("You got " + str(score) + " out of 10 and it took you " + str(elapsed) + " seconds")
leaderboard.append((username, score))