| | | 1 | | // -------------------------------------------------------------------------------- |
| | | 2 | | // Copyright (C) 2025 Eugene Eremeev (also known as Yevhenii Yeriemeieiv). |
| | | 3 | | // All Rights Reserved. |
| | | 4 | | // -------------------------------------------------------------------------------- |
| | | 5 | | // This software is the confidential and proprietary information of Eugene Eremeev |
| | | 6 | | // (also known as Yevhenii Yeriemeieiv) ("Confidential Information"). You shall not |
| | | 7 | | // disclose such Confidential Information and shall use it only in accordance with |
| | | 8 | | // the terms of the license agreement you entered into with Eugene Eremeev (also |
| | | 9 | | // known as Yevhenii Yeriemeieiv). |
| | | 10 | | // -------------------------------------------------------------------------------- |
| | | 11 | | |
| | | 12 | | using System.Text; |
| | | 13 | | |
| | | 14 | | namespace LeetCode.Algorithms.ApplyDiscountToPrices; |
| | | 15 | | |
| | | 16 | | /// <inheritdoc /> |
| | | 17 | | public class ApplyDiscountToPricesIterative : IApplyDiscountToPrices |
| | | 18 | | { |
| | | 19 | | /// <summary> |
| | | 20 | | /// Time complexity - O(n) |
| | | 21 | | /// Space complexity - O(n) |
| | | 22 | | /// </summary> |
| | | 23 | | /// <param name="sentence"></param> |
| | | 24 | | /// <param name="discount"></param> |
| | | 25 | | /// <returns></returns> |
| | | 26 | | public string DiscountPrices(string sentence, int discount) |
| | 3 | 27 | | { |
| | 3 | 28 | | var resultStringBuilder = new StringBuilder(sentence.Length); |
| | | 29 | | |
| | 3 | 30 | | var words = sentence.Split(' '); |
| | | 31 | | |
| | 48 | 32 | | for (var i = 0; i < words.Length; i++) |
| | 21 | 33 | | { |
| | 21 | 34 | | if (words[i].StartsWith('$') && words[i].Length > 1 && double.TryParse(words[i].AsSpan(1), out var number)) |
| | 7 | 35 | | { |
| | 7 | 36 | | var pricePart = words[i].AsSpan(1); |
| | | 37 | | |
| | 7 | 38 | | if (pricePart.Length > 1 && pricePart[1] == 'e') |
| | 1 | 39 | | { |
| | 1 | 40 | | resultStringBuilder.Append(words[i]); |
| | 1 | 41 | | } |
| | | 42 | | else |
| | 6 | 43 | | { |
| | 6 | 44 | | var discountedPrice = number - (number * discount / 100); |
| | | 45 | | |
| | 6 | 46 | | resultStringBuilder.Append($"${discountedPrice:F2}"); |
| | 6 | 47 | | } |
| | 7 | 48 | | } |
| | | 49 | | else |
| | 14 | 50 | | { |
| | 14 | 51 | | resultStringBuilder.Append(words[i]); |
| | 14 | 52 | | } |
| | | 53 | | |
| | 21 | 54 | | if (i < words.Length - 1) |
| | 18 | 55 | | { |
| | 18 | 56 | | resultStringBuilder.Append(' '); |
| | 18 | 57 | | } |
| | 21 | 58 | | } |
| | | 59 | | |
| | 3 | 60 | | return resultStringBuilder.ToString(); |
| | 3 | 61 | | } |
| | | 62 | | } |