littledy

2020年4月21日

摘要： Problem : Implement the following operations of a queue using stacks. push(x) Push element x to the back of queue. pop() Removes the element from in f 阅读全文

posted @ 2020-04-21 20:33 littledy 阅读(75) 评论(0) 推荐(0) 编辑

890. Find and Replace Pattern

摘要： Problem : You have a list of words and a pattern, and you want to know which words in words matches the pattern. A word matches the pattern if there e 阅读全文

posted @ 2020-04-21 01:09 littledy 阅读(89) 评论(0) 推荐(0) 编辑

868. Binary Gap

摘要： Problem : Given a positive integer N, find and return the longest distance between two consecutive 1's in the binary representation of N. If there are 阅读全文

posted @ 2020-04-21 00:15 littledy 阅读(88) 评论(0) 推荐(0) 编辑

2020年4月20日

876. Middle of the Linked List

摘要： Problem : Given a non empty, singly linked list with head node head, return a middle node of linked list. If there are two middle nodes, return the se 阅读全文

posted @ 2020-04-20 23:56 littledy 阅读(83) 评论(0) 推荐(0) 编辑

867. Transpose Matrix

摘要： Problem : Given a matrix A, return the transpose of A. The transpose of a matrix is the matrix flipped over it's main diagonal, switching the row and 阅读全文

posted @ 2020-04-20 23:35 littledy 阅读(89) 评论(0) 推荐(0) 编辑

852. Peak Index in a Mountain Array

摘要： Problem : Let's call an array A a mountain if the following properties hold: A.length = 3 There exists some 0 A[i+1] ... A[A.length 1] Given an array 阅读全文

posted @ 2020-04-20 23:21 littledy 阅读(86) 评论(0) 推荐(0) 编辑

841. Keys and Rooms

摘要： Problem : There are N rooms and you start in room 0. Each room has a distinct number in 0, 1, 2, ..., N 1, and each room may have some keys to access 阅读全文

posted @ 2020-04-20 22:33 littledy 阅读(112) 评论(0) 推荐(0) 编辑

832. Flipping an Image

摘要： Problem : Given a binary matrix A, we want to flip the image horizontally, then invert it, and return the resulting image. To flip an image horizontal 阅读全文

posted @ 2020-04-20 18:46 littledy 阅读(87) 评论(0) 推荐(0) 编辑

821. Shortest Distance to a Character

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

posted @ 2020-04-20 18:31 littledy 阅读(84) 评论(0) 推荐(0) 编辑

824. Goat Latin

摘要： Problem : A sentence S is given, composed of words separated by spaces. Each word consists of lowercase and uppercase letters only. We would like to c 阅读全文

posted @ 2020-04-20 17:42 littledy 阅读(88) 评论(0) 推荐(0) 编辑

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