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Re-translate the Japanese version (#1871)
* Retranslate Japanese docs with GPT-5.4 * Retranslate Japanese code with GPT-5.4
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/**
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* File: top_k.cs
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* Created Time: 2023-06-14
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* Author: hpstory (hpstory1024@163.com)
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*/
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namespace hello_algo.chapter_heap;
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public class top_k {
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/* ヒープに基づいて配列中の最大の k 個の要素を探す */
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PriorityQueue<int, int> TopKHeap(int[] nums, int k) {
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// 最小ヒープを初期化
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PriorityQueue<int, int> heap = new();
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// 配列の先頭 k 個の要素をヒープに追加
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for (int i = 0; i < k; i++) {
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heap.Enqueue(nums[i], nums[i]);
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}
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// k+1 番目の要素から開始し、ヒープ長を k に保つ
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for (int i = k; i < nums.Length; i++) {
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// 現在の要素がヒープ先頭より大きければ、ヒープ先頭を取り出して現在の要素を追加する
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if (nums[i] > heap.Peek()) {
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heap.Dequeue();
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heap.Enqueue(nums[i], nums[i]);
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}
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}
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return heap;
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}
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[Test]
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public void Test() {
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int[] nums = [1, 7, 6, 3, 2];
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int k = 3;
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PriorityQueue<int, int> res = TopKHeap(nums, k);
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Console.WriteLine("最大の " + k + " 個の要素は");
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PrintUtil.PrintHeap(res);
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}
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}
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