2017年6月9日

摘要： https://leetcode.com/problems/construct-string-from-binary-tree/#/description You need to construct a string consists of parenthesis and integers from 阅读全文

posted @ 2017-06-09 12:06 Premiumlab 阅读(110) 评论(0) 推荐(0)

168. Excel Sheet Column Title

摘要： https://leetcode.com/problems/excel-sheet-column-title/#/description Given a positive integer, return its corresponding column title as appear in an E 阅读全文

posted @ 2017-06-09 10:31 Premiumlab 阅读(147) 评论(0) 推荐(0)

2017年6月8日

461. Hamming Distance

摘要： https://leetcode.com/problems/hamming-distance/#/description The Hamming distance between two integers is the number of positions at which the corresp 阅读全文

posted @ 2017-06-08 20:30 Premiumlab 阅读(123) 评论(0) 推荐(0)

Tree Representation Implementation & Traversal

摘要： https://github.com/Premiumlab/Python-for-Algorithms--Data-Structures--and-Interviews/blob/master/Trees/Tree%20Representation%20Implementation%20(Lists 阅读全文

posted @ 2017-06-08 18:40 Premiumlab 阅读(147) 评论(0) 推荐(0)

404. Sum of Left Leaves

摘要： https://leetcode.com/problems/sum-of-left-leaves/#/description Find the sum of all left leaves in a given binary tree. Example: Hint: Q: How to define 阅读全文

posted @ 2017-06-08 18:22 Premiumlab 阅读(186) 评论(0) 推荐(0)

572. Subtree of Another Tree

摘要： https://leetcode.com/problems/subtree-of-another-tree/#/solutions Given two non-empty binary trees s and t, check whether tree t has exactly the same 阅读全文

posted @ 2017-06-08 10:44 Premiumlab 阅读(101) 评论(0) 推荐(0)

20. Valid Parentheses

摘要： https://leetcode.com/problems/valid-parentheses/#/description Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine 阅读全文

posted @ 2017-06-08 10:09 Premiumlab 阅读(99) 评论(0) 推荐(0)

Check time of different search methods

摘要： https://github.com/Premiumlab/Python-for-Algorithms--Data-Structures--and-Interviews/blob/master/Mock%20Interviews/Ride%20Share%20Start-Up%20Company/R 阅读全文

posted @ 2017-06-08 09:03 Premiumlab 阅读(121) 评论(0) 推荐(0)

Binary search tree or not

摘要： https://github.com/Premiumlab/Python-for-Algorithms--Data-Structures--and-Interviews/blob/master/Mock%20Interviews/Ride%20Share%20Start-Up%20Company/R 阅读全文

posted @ 2017-06-08 09:01 Premiumlab 阅读(247) 评论(0) 推荐(0)

Coin Change

摘要： https://github.com/Premiumlab/Python-for-Algorithms--Data-Structures--and-Interviews/blob/master/Mock%20Interviews/Ride%20Share%20Start-Up%20Company/R 阅读全文

posted @ 2017-06-08 08:59 Premiumlab 阅读(182) 评论(0) 推荐(0)


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2017年6月9日

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