Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. class Solution { public: ListNode *mergeKLists(vector<ListNode *> &lists) { int n = lists.size(); ) return nullptr; ) ]; ,n-); } ListNode* mergeKL…
Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. Example: Input: [ 1->4->5, 1->3->4, 2->6 ] Output: 1->1->2->3->4->4->5->6 要合并K个排好序的链表,我用的方法是用一个优先队列每次存K个元素在队列中,根据优…
Level: Hard 题目描述: Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. Example: Input: [ 1->4->5, 1->3->4, 2->6 ] Output: 1->1->2->3->4->4->5->6 思路分析: 思路一:通过归并排序思想,将k个排好…