Veritas des Liberty

摘要： Your music player contains N different songs and she wants to listen to L (not necessarily different) songs during your trip. You create a playlist so 阅读全文

摘要： We have a sorted set of digits D, a non-empty subset of {'1','2','3','4','5','6','7','8','9'}. (Note that '0' is not included.) Now, we write numbers 阅读全文

摘要： We have an array A of non-negative integers. For every (contiguous) subarray B = [A[i], A[i+1], ..., A[j]] (with i <= j), we take the bitwise OR of al 阅读全文

摘要： You are given K eggs, and you have access to a building with N floors from 1 to N. Each egg is identical in function, and if an egg breaks, you cannot 阅读全文

摘要： 1020. Partition Array Into Three Parts With Equal Sum Given an array A of integers, return true if and only if we can partition the array into three n 阅读全文

摘要： 一、扩大英语词汇量 名词 形容词（-al） industrial（工业的） 二、夯实语法基础知识 常见的语法现象:如虚拟语气、倒装、主动语态、被动语态、省略句等。 英语中可以充当定语的成分比较复杂, 如名词, 形容词, 形容词性物主代词, 介词短语, 非谓语动词中的分词 (现在分词与过去分词) , 阅读全文

摘要： There are G people in a gang, and a list of various crimes they could commit. The i-th crime generates a profit[i] and requires group[i] gang members 阅读全文

摘要： A sequence X_1, X_2, ..., X_n is fibonacci-like if: n >= 3 X_i + X_{i+1} = X_{i+2} for all i + 2 <= n Given a strictly increasing array A of positive 阅读全文

摘要： An undirected, connected graph of N nodes (labeled 0, 1, 2, ..., N-1) is given as graph. graph.length = N, and j != i is in the list graph[i] exactly 阅读全文

摘要： There are N dominoes in a line, and we place each domino vertically upright. In the beginning, we simultaneously push some of the dominoes either to t 阅读全文