[LeetCode] 23. Merge k Sorted Lists 合並k個有序鏈表
Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. Example: 這道題讓我們合並k個有序鏈表，最終合並出來的結果也必須是有序 ...
原文：leetcode 23. Merge k Sorted Lists(堆||分治法)
Mergeksorted linked lists and return it as one sorted list. 題意：把k個已經排好序的鏈表整合到一個鏈表中，並且這個鏈表是排了序的。 題解：這是一道經典好題，值得仔細一說。 有兩種方法，假設每個鏈表的平均長度是n，那么這兩種方法的時間復雜度都是O nklogk 。 方法一： 基本思路是：把k個鏈表開頭的值排個序，每次取最小的一個值放到答案鏈 ...
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