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Update Lesson 2 Task 3 to be even more simple

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Stanislav Mykhailenko 2023-01-24 02:41:17 +02:00
parent 9fd54d6fbc
commit 3825606a00
Signed by: stanislavmykhailenko
GPG key ID: 1E95E66A9C9D6A36
1 changed files with 11 additions and 18 deletions
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21
Lesson_2/task3.py
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@ -2,20 +2,10 @@
# Author: Stanislav Mykhailenko # Author: Stanislav Mykhailenko
# License: Unlicense # License: Unlicense
# Return codes: try:
# 0 - OK number = int(input("Enter a natural number: "))
# 1 - Invalid number entered if number < 1:
raise ValueError("A natural number is required.")
import math, sys
def numberError():
print("Invalid number entered.")
sys.exit(1)
try: number = int(input("Enter a natural number: "))
except ValueError: numberError()
if number < 1: numberError()
for i in range(number, 0, -1): for i in range(number, 0, -1):
currentNumber = i currentNumber = i
@ -23,3 +13,6 @@ for i in range(number, 0, -1):
print(j, end='') print(j, end='')
if j > 1: print(' ', end='') if j > 1: print(' ', end='')
print('') print('')
except ValueError:
print("Invalid number entered.")