From e89b8b046b538b9b5e9f6b76176bb1d63d507685 Mon Sep 17 00:00:00 2001 From: ivan Date: Tue, 15 Jul 2025 04:24:53 -0600 Subject: [PATCH] adding algo --- .../best_time_to_sell.py | 18 ++++++++++++++++++ .../test_best_time_to_sell_round_18.py | 11 +++++++++++ 2 files changed, 29 insertions(+) create mode 100644 src/my_project/interviews/top_150_questions_round_18/best_time_to_sell.py create mode 100644 tests/test_150_questions_round_18/test_best_time_to_sell_round_18.py diff --git a/src/my_project/interviews/top_150_questions_round_18/best_time_to_sell.py b/src/my_project/interviews/top_150_questions_round_18/best_time_to_sell.py new file mode 100644 index 00000000..ba474c43 --- /dev/null +++ b/src/my_project/interviews/top_150_questions_round_18/best_time_to_sell.py @@ -0,0 +1,18 @@ +from typing import List, Union, Collection, Mapping, Optional +from abc import ABC, abstractmethod +import math + +class Solution: + def maxProfit(self, prices: List[int]) -> int: + + min_price = math.inf + max_profit = 0 + len_prices = len(prices) + + for i in range(len_prices): + if prices[i] < min_price: + min_price = prices[i] + elif prices[i] - min_price > max_profit: + max_profit = prices[i] - min_price + + return max_profit \ No newline at end of file diff --git a/tests/test_150_questions_round_18/test_best_time_to_sell_round_18.py b/tests/test_150_questions_round_18/test_best_time_to_sell_round_18.py new file mode 100644 index 00000000..798de5b1 --- /dev/null +++ b/tests/test_150_questions_round_18/test_best_time_to_sell_round_18.py @@ -0,0 +1,11 @@ +import unittest +from src.my_project.interviews.top_150_questions_round_18\ +.best_time_to_sell import Solution + +class BestTimeToSellStockTestCase(unittest.TestCase): + + def test_best_time_to_sell_stock(self): + solution = Solution() + output = solution.maxProfit(prices=[7,1,5,3,6,4]) + target = 5 + self.assertEqual(output, target)