随笔分类 -  LeetCode

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455. Assign Cookies (Easy)
摘要：Assume you are an awesome parent and want to give your children some cookies. But, you should give each child at most one cookie. Each child i has a g 阅读全文
posted @ 2017-09-12 14:23 Yancea 阅读(131) 评论(0) 推荐(0)
383. Ransom Note (Easy)
摘要：Given an arbitrary ransom note string and another string containing letters from all the magazines, write a function that will return true if the rans 阅读全文
posted @ 2017-09-12 10:54 Yancea 阅读(157) 评论(0) 推荐(0)
627. Swap Salary (Easy)
摘要：Given a table salary, such as the one below, that has m=male and f=female values. Swap all f and m values (i.e., change all f values to m and vice ver 阅读全文
posted @ 2017-09-11 22:38 Yancea 阅读(152) 评论(0) 推荐(0)
561. Array Partition I (Easy)
摘要：Given an array of 2n integers, your task is to group these integers into n pairs of integer, say (a1, b1), (a2, b2), ..., (an, bn) which makes sum of 阅读全文
posted @ 2017-09-11 22:34 Yancea 阅读(131) 评论(0) 推荐(0)
617. Merge Two Binary Trees (Easy)
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 @ 2017-09-11 22:29 Yancea 阅读(133) 评论(0) 推荐(0)
461. Hamming Distance (Easy)
摘要：The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calcul 阅读全文
posted @ 2017-09-11 22:24 Yancea 阅读(107) 评论(0) 推荐(0)
595. Big Countries (Easy)
摘要：There is a table World A country is big if it has an area of bigger than 3 million square km or a population of more than 25 million. Write a SQL solu 阅读全文
posted @ 2017-09-11 22:21 Yancea 阅读(118) 评论(0) 推荐(0)
669. Trim a Binary Search Tree (Easy)
摘要：Given a binary search tree and the lowest and highest boundaries as L and R, trim the tree so that all its elements lies in [L, R] (R >= L). You might 阅读全文
posted @ 2017-09-11 19:57 Yancea 阅读(108) 评论(0) 推荐(0)
168. Excel Sheet Column Title (Easy)
摘要：Given a positive integer, return its corresponding column title as appear in an Excel sheet. For example: 阅读全文
posted @ 2017-09-11 19:03 Yancea 阅读(131) 评论(0) 推荐(0)
171. Excel Sheet Column Number (Easy)
摘要：Given a column title as appear in an Excel sheet, return its corresponding column number. For example: 相关问题：http://www.cnblogs.com/yancea/p/7506456.ht 阅读全文
posted @ 2017-09-11 12:20 Yancea 阅读(104) 评论(0) 推荐(0)
349. Intersection of Two Arrays (Easy)
摘要：Given two arrays, write a function to compute their intersection. Example:Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2]. Note: Each element i 阅读全文
posted @ 2017-09-08 16:36 Yancea 阅读(110) 评论(0) 推荐(0)
453. Minimum Moves to Equal Array Elements (Easy)
摘要：Given a non-empty integer array of size n, find the minimum number of moves required to make all array elements equal, where a move is incrementing n  阅读全文
posted @ 2017-09-08 16:06 Yancea 阅读(107) 评论(0) 推荐(0)
657. Judge Route Circle (Easy)
摘要：Initially, there is a Robot at position (0, 0). Given a sequence of its moves, judge if this robot makes a circle, which means it moves back to the or 阅读全文
posted @ 2017-09-08 15:18 Yancea 阅读(177) 评论(0) 推荐(0)

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