feat(SortVowels): add C# solution

2025-09-11 11:05:11 +08:00
parent f4a7029b7e
commit 75f3d9e320
3 changed files with 188 additions and 0 deletions
--- a/problems/2785-sort-vowels-in-a-string/csharp/Program.cs
+++ b/problems/2785-sort-vowels-in-a-string/csharp/Program.cs
@@ -0,0 +1,108 @@
+// LeetCode 2785: Sort Vowels In A String
+// 難度: Medium
+// 日期: 2025-09-11
+
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+public class Solution {
+    public string SortVowels(string s) {
+        // to char[]
+        char[] sArray = s.ToCharArray();
+
+        // get all vowels
+        string vowels = "aeiouAEIOU";
+        List<int> vowelPositions = new List<int>();
+        List<char> vowelChars = new List<char>();
+        
+        for(int i = 0; i < sArray.Length; i++){
+            if(vowels.Contains(sArray[i])){
+                vowelPositions.Add(i);
+                vowelChars.Add(sArray[i]);
+            }
+        }
+
+        // sort all vowels
+        vowelChars.Sort();
+
+        // insert vowels
+        for(var i = 0; i < vowelPositions.Count; i++){
+            sArray[vowelPositions[i]] = vowelChars[i];
+        }
+
+        return new string(sArray);
+    }
+}
+
+// 測試程式
+public class Program {
+    public static void Main() {
+        Solution sol = new Solution();
+        
+        // TODO: 加入測試案例
+        TestCase1(sol);
+        TestCase2(sol);
+        TestCase3(sol);
+        TestCase4(sol);
+        TestCase5(sol);
+        TestCase6(sol);
+        TestCase7(sol);
+    }
+    
+    // 基本範例 - LeetCode官方例子
+    static void TestCase1(Solution sol) {
+        var s = "lEetcOde";
+        var result = sol.SortVowels(s);
+        var expected = "lEOtcede";
+        Console.WriteLine($"Test 1: Input: \"{s}\", Result: \"{result}\", Expected: \"{expected}\", Pass: {result == expected}");
+    }
+    
+    // 只有子音 - 沒有母音的情況
+    static void TestCase2(Solution sol) {
+        var s = "lYmpH";
+        var result = sol.SortVowels(s);
+        var expected = "lYmpH";
+        Console.WriteLine($"Test 2: Input: \"{s}\", Result: \"{result}\", Expected: \"{expected}\", Pass: {result == expected}");
+    }
+    
+    // 只有母音 - 測試排序功能
+    static void TestCase3(Solution sol) {
+        var s = "aEiOu";
+        var result = sol.SortVowels(s);
+        var expected = "EOaiu";
+        Console.WriteLine($"Test 3: Input: \"{s}\", Result: \"{result}\", Expected: \"{expected}\", Pass: {result == expected}");
+    }
+    
+    // 混合大小寫母音
+    static void TestCase4(Solution sol) {
+        var s = "TestcasE";
+        var result = sol.SortVowels(s);
+        var expected = "TEstcase";
+        Console.WriteLine($"Test 4: Input: \"{s}\", Result: \"{result}\", Expected: \"{expected}\", Pass: {result == expected}");
+    }
+    
+    // 單一字元 - 邊界情況
+    static void TestCase5(Solution sol) {
+        var s = "a";
+        var result = sol.SortVowels(s);
+        var expected = "a";
+        Console.WriteLine($"Test 5: Input: \"{s}\", Result: \"{result}\", Expected: \"{expected}\", Pass: {result == expected}");
+    }
+    
+    // 重複母音
+    static void TestCase6(Solution sol) {
+        var s = "Aa";
+        var result = sol.SortVowels(s);
+        var expected = "Aa";
+        Console.WriteLine($"Test 6: Input: \"{s}\", Result: \"{result}\", Expected: \"{expected}\", Pass: {result == expected}");
+    }
+    
+    // 較長的字串測試
+    static void TestCase7(Solution sol) {
+        var s = "RaInBoW";
+        var result = sol.SortVowels(s);
+        var expected = "RIanBoW";
+        Console.WriteLine($"Test 7: Input: \"{s}\", Result: \"{result}\", Expected: \"{expected}\", Pass: {result == expected}");
+    }
+}