Files
coding-practice/problems/2785-sort-vowels-in-a-string/csharp/Program.cs

109 lines
3.4 KiB
C#

// 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}");
}
}