xiaoyongyong

摘要： 定义set emptySet = set() mySet = {'a','b','c'} tuple, 与list类似，但是是immutable的 如果你将一个list添加到set，就会报错；但是如果你将tuple添加到set是ok的，因为tuple 不可改变因此它的hash值是固定的 alist 阅读全文

摘要： Makefile 中 .PHONY的作用 https://www.cnblogs.com/idorax/p/9306528.html 阅读全文

摘要： 1861. Rotating the Box Medium You are given an m x n matrix of characters box representing a side-view of a box. Each cell of the box is one of the fo 阅读全文

摘要： 341. Flatten Nested List Iterator Medium 29571025Add to ListShare You are given a nested list of integers nestedList. Each element is either an intege 阅读全文

摘要： 53. Maximum Subarray Easy Given an integer array nums, find the contiguous subarray (containing at least one number) which has the largest sum and ret 阅读全文

摘要： 295. Find Median from Data Stream Hard 6150114Add to ListShare The median is the middle value in an ordered integer list. If the size of the list is e 阅读全文

摘要： 198. House Robber Medium 10797236Add to ListShare You are a professional robber planning to rob houses along a street. Each house has a certain amount 阅读全文

摘要： 399. Evaluate Division Medium You are given an array of variable pairs equations and an array of real numbers values, where equations[i] = [Ai, Bi] an 阅读全文

摘要： composition vs inheritance composition mean A has B or A contains B. (A has a property whose type is B) inheritance mean A is B. (A extend B) 优缺点对比： c 阅读全文

摘要： 269. Alien Dictionary There is a new alien language that uses the English alphabet. However, the order among the letters is unknown to you. You are gi 阅读全文