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Update Lesson 2 Task 3 to make it more simple

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This commit is contained in:
Stanislav Mykhailenko 2023-01-07 20:23:42 +02:00
parent 377b713b83
commit ba3cdad458
Signed by: stanislavmykhailenko
GPG key ID: 1E95E66A9C9D6A36
1 changed files with 14 additions and 19 deletions
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33
Lesson_2/task3.py
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@ -2,26 +2,21 @@
# Author: Stanislav Mykhailenko
# License: Unlicense
# Return codes:
# 0 - OK
# 1 - Invalid number entered
import math, sys
def numberError():
print("Invalid number entered.")
sys.exit(1)
error = False
try: number = int(input("Enter a natural number: "))
except ValueError: numberError()
except ValueError: error = True
if number < 1: numberError()
if not error and number < 1: error = True
while number > 0:
currentNumber = number
while currentNumber > 0:
print(currentNumber, end='')
if currentNumber > 1: print(' ', end='')
currentNumber = currentNumber - 1
print('')
number = number - 1
if not error:
while number > 0:
currentNumber = number
while currentNumber > 0:
print(currentNumber, end='')
if currentNumber > 1: print(' ', end='')
currentNumber = currentNumber - 1
print('')
number = number - 1
else:
print("Invalid number entered.")