chiyeung

[LeetCode&Python] Problem 682. Baseball Game

摘要： You're now a baseball game point recorder. Given a list of strings, each string can be one of the 4 following types: Each round's operation is permane 阅读全文

posted @ 2018-10-11 13:49 chiyeung 阅读(89) 评论(0) 推荐(0)

[LeetCode&Python] Problem 463. Island Perimeter

摘要： You are given a map in form of a two-dimensional integer grid where 1 represents land and 0 represents water. Grid cells are connected horizontally/ve 阅读全文

posted @ 2018-10-11 13:34 chiyeung 阅读(92) 评论(0) 推荐(0)

[LeetCode&Python] Problem 868. Binary Gap

摘要： Given a positive integer N, find and return the longest distance between two consecutive 1's in the binary representation of N. If there aren't two co 阅读全文

posted @ 2018-10-10 13:23 chiyeung 阅读(213) 评论(0) 推荐(0)

[LeetCode&Python] Problem 766. Toeplitz Matrix

摘要： A matrix is Toeplitz if every diagonal from top-left to bottom-right has the same element. Now given an M x N matrix, return True if and only if the m 阅读全文

posted @ 2018-10-09 10:31 chiyeung 阅读(204) 评论(0) 推荐(0)

[LeetCode&Python] Problem 884. Uncommon Words from Two Sentences

摘要： We are given two sentences A and B. (A sentence is a string of space separated words. Each word consists only of lowercase letters.) A word is uncommo 阅读全文

posted @ 2018-10-08 12:20 chiyeung 阅读(297) 评论(0) 推荐(0)

[LeetCode&Python] Problem 872. Leaf-Similar Trees

摘要： Consider all the leaves of a binary tree. From left to right order, the values of those leaves form a leaf value sequence. For example, in the given t 阅读全文

posted @ 2018-10-08 11:55 chiyeung 阅读(175) 评论(0) 推荐(0)

[LeetCode&Python] Problem 821. Shortest Distance to a Character

摘要： Given a string S and a character C, return an array of integers representing the shortest distance from the character C in the string. Example 1: Note 阅读全文

posted @ 2018-10-08 11:45 chiyeung 阅读(113) 评论(0) 推荐(0)

[LeetCode&Python] Problem 917. Reverse Only Letters

摘要： Given a string S, return the "reversed" string where all characters that are not a letter stay in the same place, and all letters reverse their positi 阅读全文

posted @ 2018-10-07 14:04 chiyeung 阅读(159) 评论(0) 推荐(0)

[LeetCode&Python] Problem 617. Merge Two Binary Trees

摘要： Given two binary trees and imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are n 阅读全文

posted @ 2018-10-07 13:25 chiyeung 阅读(135) 评论(0) 推荐(0)

[LeetCode&Python] Problem 700. Search in a Binary Search Tree

摘要： Given the root node of a binary search tree (BST) and a value. You need to find the node in the BST that the node's value equals the given value. Retu 阅读全文

posted @ 2018-10-06 21:42 chiyeung 阅读(455) 评论(0) 推荐(0)

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