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pre-commit-ci[bot] 2024-10-18 17:38:29 +00:00
parent 3cf6be0b7b
commit 4cde2d498b
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18
recursions/recursive_digit_sum.py
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@ -1,7 +1,7 @@
"""
The super digit problem is defined as follows:
Given an integer represented as a string and an integer k,
the goal is to find the super digit of the number formed by concatenating
Given an integer represented as a string and an integer k,
the goal is to find the super digit of the number formed by concatenating
the integer n k times.
The super digit of a number is defined recursively:
@ -14,6 +14,7 @@ super_digit(9875987598759875), which can be reduced by summing its digits.
from __future__ import annotations
def superDigit(n: str, k: int) -> int:
"""
Computes the super digit of a number formed by concatenating n k times.
@ -35,23 +36,24 @@ def superDigit(n: str, k: int) -> int:
# Calculate the initial sum of the digits in n
digit_sum = sum(int(digit) for digit in n)
# Multiply the sum by k
total_sum = digit_sum * k
# Recursive function to find the super digit
while total_sum >= 10:
total_sum = sum(int(digit) for digit in str(total_sum))
return total_sum
if __name__ == '__main__':
if __name__ == "__main__":
# Read input and split it into n and k
first_multiple_input = input().rstrip().split()
n = first_multiple_input[0] # n as a string
k = int(first_multiple_input[1]) # k as an integer
# Call the superDigit function and print the result
result = superDigit(n, k)
print(result)