2019年1月29日
19.1.29 [LeetCode 23] Merge k Sorted Lists
摘要： Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. Example: 1 struct cmp { 2 bool operator () (ListNod 阅读全文
posted @ 2019-01-29 18:38 TobicYAL 阅读(186) 评论(0) 推荐(0)
19.1.29 [LeetCode 22] Generate Parentheses
摘要： Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses. For example, given n = 3, a solution set is: 1 阅读全文
posted @ 2019-01-29 15:15 TobicYAL 阅读(148) 评论(0) 推荐(0)
19.1.29 [LeetCode 21] Merge Two Sorted Lists
摘要： Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. Example: 阅读全文
posted @ 2019-01-29 14:03 TobicYAL 阅读(124) 评论(0) 推荐(0)
19.1.29 [LeetCode 20] Valid Parentheses
摘要： Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: No 阅读全文
posted @ 2019-01-29 12:08 TobicYAL 阅读(158) 评论(0) 推荐(0)
19.1.29 [LeetCode 19] Remove Nth Node From End of List
摘要： Given a linked list, remove the n-th node from the end of list and return its head. Example: Note: Given n will always be valid. Follow up: Could you 阅读全文
posted @ 2019-01-29 12:00 TobicYAL 阅读(154) 评论(0) 推荐(0)
19.1.29 [LeetCode 18] 4Sum
摘要： Given an array nums of n integers and an integer target, are there elements a, b, c, and d in nums such that a + b + c + d = target? Find all unique q 阅读全文
posted @ 2019-01-29 11:37 TobicYAL 阅读(800) 评论(0) 推荐(0)