| | | 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.MergeStringsAlternately; |
| | | 15 | | |
| | | 16 | | /// <inheritdoc /> |
| | | 17 | | public class MergeStringsAlternatelyTwoPointers : IMergeStringsAlternately |
| | | 18 | | { |
| | | 19 | | /// <summary> |
| | | 20 | | /// Time complexity - O(m + n) |
| | | 21 | | /// Space complexity - O(1) |
| | | 22 | | /// </summary> |
| | | 23 | | /// <param name="word1"></param> |
| | | 24 | | /// <param name="word2"></param> |
| | | 25 | | /// <returns></returns> |
| | | 26 | | public string MergeAlternately(string word1, string word2) |
| | 3 | 27 | | { |
| | 3 | 28 | | var word1Index = 0; |
| | 3 | 29 | | var word2Index = 0; |
| | | 30 | | |
| | 3 | 31 | | var resultStringBuilder = new StringBuilder(); |
| | | 32 | | |
| | 14 | 33 | | while (word1Index < word1.Length || word2Index < word2.Length) |
| | 11 | 34 | | { |
| | 11 | 35 | | if (word1Index < word1.Length) |
| | 9 | 36 | | { |
| | 9 | 37 | | resultStringBuilder.Append(word1[word1Index]); |
| | | 38 | | |
| | 9 | 39 | | word1Index++; |
| | 9 | 40 | | } |
| | | 41 | | |
| | 11 | 42 | | if (word2Index < word2.Length) |
| | 9 | 43 | | { |
| | 9 | 44 | | resultStringBuilder.Append(word2[word2Index]); |
| | | 45 | | |
| | 9 | 46 | | word2Index++; |
| | 9 | 47 | | } |
| | 11 | 48 | | } |
| | | 49 | | |
| | 3 | 50 | | return resultStringBuilder.ToString(); |
| | 3 | 51 | | } |
| | | 52 | | } |