程序媛詹妮弗
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摘要: Suppose you have a long flowerbed in which some of the plots are planted and some are not. However, flowers cannot be planted in adjacent plots - they 阅读全文
posted @ 2019-05-04 06:20 程序媛詹妮弗 阅读(242) 评论(0) 推荐(0) 编辑
摘要: Implement a data structure supporting the following operations: Challenge: Perform all these in O(1) time complexity. 题意: 设计一个类似hash map的计数器,但要提供最大值对应 阅读全文
posted @ 2019-04-26 04:50 程序媛詹妮弗 阅读(252) 评论(0) 推荐(0) 编辑
摘要: Given an array of words and a width maxWidth, format the text such that each line has exactly maxWidth characters and is fully (left and right) justif 阅读全文
posted @ 2019-04-25 22:26 程序媛詹妮弗 阅读(176) 评论(0) 推荐(0) 编辑
摘要: Given n points on a 2D plane, find the maximum number of points that lie on the same straight line. Example 1: Example 2: NOTE: input types have been 阅读全文
posted @ 2019-04-25 21:58 程序媛詹妮弗 阅读(297) 评论(0) 推荐(0) 编辑
摘要: Given a non-empty binary search tree and a target value, find k values in the BST that are closest to the target. Note: Given target value is a floati 阅读全文
posted @ 2019-04-25 13:40 程序媛詹妮弗 阅读(186) 评论(0) 推荐(0) 编辑
摘要: 1 [leetcode]243. Shortest Word Distance最短单词距离 Two Pointers 2 [leetcode]244. Shortest Word Distance II最短单词距离(允许连环call) HashMap+Merge Sort 3 [leetcode]2 阅读全文
posted @ 2019-04-25 05:56 程序媛詹妮弗 阅读(437) 评论(0) 推荐(0) 编辑
摘要: Given a non-empty array of digits representing a non-negative integer, plus one to the integer. The digits are stored such that the most significant d 阅读全文
posted @ 2019-04-23 08:02 程序媛詹妮弗 阅读(128) 评论(0) 推荐(0) 编辑
摘要: Given a linked list, rotate the list to the right by k places, where k is non-negative. Example 1: Example 2: 题意: 给定一个链表, 循环移位k次。 阅读全文
posted @ 2019-04-23 07:58 程序媛詹妮弗 阅读(197) 评论(0) 推荐(0) 编辑
摘要: 判断String是否为palindrome:Two Pointers(left & right) 同时边扫边check 当前两边的char是否相同 code 判断number是否为palindrome:先reverse original number 变为reversed number ,再判断 o 阅读全文
posted @ 2019-04-20 07:58 程序媛詹妮弗 阅读(319) 评论(0) 推荐(0) 编辑
摘要: StringBuilder objects are like String objects, except that they can be modified. Internally, these objects are treated like variable-length arrays tha 阅读全文
posted @ 2019-04-20 07:04 程序媛詹妮弗 阅读(358) 评论(0) 推荐(0) 编辑
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