you & mdash; A researcher in the fantasy world studying magic crystals. You have found that these crystals are growing according to a special law that is very reminiscent of an ancient mathematical sequence.
rn You need to write a program that will help you predict the growth of crystals. The program should request from the user the number of the month & nbsp;
Technical requirements:
rn& nbsp;
number of the month & nbsp;
The final number of crystals (the number of fibonacci) in the form of a formatted line or error message (line).
10
The number of fibonacci for n = 10 is: 55
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# Запрашиваем у пользователя номер месяца в виде строки
n_str = input()
# Проверяем, состоит ли введенная строка только из цифр
if not n_str.isdigit():
# Если нет, выводим сообщение об ошибке
print("Ошибка: введено некорректное значение.")
else:
# Преобразуем строку в целое число
n = int(n_str)
# Обрабатываем базовые случаи n=0 и n=1
if n == 0:
# Для 0-го месяца результат 0
result = 0
print(f"Число Фибоначчи для n = {n} равно: {result}")
elif n == 1:
# Для 1-го месяца результат 1
result = 1
print(f"Число Фибоначчи для n = {n} равно: {result}")
else:
# Инициализируем первые два числа последовательности
a, b = 0, 1
# Инициализируем счетчик, начинаем со второго числа, так как 0 и 1 уже есть
count = 1
# Запускаем цикл, который будет работать, пока мы не достигнем нужного месяца n
while count < n:
# Вычисляем следующее число Фибоначчи
# a становится b, а b становится суммой старых a и b
a, b = b, a + b
# Увеличиваем счетчик на 1
count += 1
# После завершения цикла в переменной 'b' находится n-ое число Фибоначчи
result = b
print(f"Число Фибоначчи для n = {n} равно: {result}")1 - Read the task and understand what needs to be done
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Running your code...