From accdb52aec56206357012e88311a693fe516b3e5 Mon Sep 17 00:00:00 2001 From: bumpsoo Date: Mon, 12 May 2025 22:03:09 +0900 Subject: [PATCH] https://leetcode.com/problems/finding-3-digit-even-numbers --- easy/finding_3_digit_even_numbers.py | 36 ++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 easy/finding_3_digit_even_numbers.py diff --git a/easy/finding_3_digit_even_numbers.py b/easy/finding_3_digit_even_numbers.py new file mode 100644 index 0000000..dcfc09b --- /dev/null +++ b/easy/finding_3_digit_even_numbers.py @@ -0,0 +1,36 @@ +# https://leetcode.com/problems/finding-3-digit-even-numbers + +from typing import List + +class Solution: + def findEvenNumbers(self, digits: List[int]) -> List[int]: + counts = [0] * 10 + for digit in digits: + counts[digit] += 1 + answer = [] + i = 0 + while i < 10: + if i == 0 or counts[i] == 0: + i += 1 + continue + counts[i] -= 1 + j = 0 + while j < 10: + if counts[j] == 0: + j += 1 + continue + counts[j] -= 1 + k = 0 + while k < 10: + if counts[k] == 0: + k += 1 + continue + if k % 2 == 0: + answer.append(i * 100 + j * 10 + k) + k += 1 + counts[j] += 1 + j += 1 + counts[i] += 1 + i += 1 + return answer +