Introduction-to-Python/Assignment 4.3.py at main · msadnan007/Introduction-to-Python · GitHub

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def num_divide3(num):
    count = 0
    for i in range(1, num + 1):
        if i % 3 == 0:
            count += 1
    return count

while True:
    user_input = input("Enter a positive integer or 'done' to quit: ")

    if user_input.lower() == 'done':
        break

    try:
        num = int(user_input)
        if num < 1:
            print("Please enter a positive integer.")
        else:
            result = num_divide3(num)
            print(f"Number of numbers divisible by 3 from 1 to {num}: {result}")
    except:
        print("please enter a positive number")