摘要： 题目如下： Given an array A of integers, a ramp is a tuple (i, j) for which i < j and A[i] <= A[j]. The width of such a ramp is j - i. Find the maximum wid 阅读全文

摘要： 题目如下： Given a set of points in the xy-plane, determine the minimum area of any rectangle formed from these points, with sides not necessarily parallel 阅读全文

摘要： 题目如下： In a array A of size 2N, there are N+1 unique elements, and exactly one of these elements is repeated N times. Return the element repeated N tim 阅读全文

摘要： 题目如下： Given a set of points in the xy-plane, determine the minimum area of a rectangle formed from these points, with sides parallel to the x and y ax 阅读全文

摘要： 题目如下： In a N x N grid composed of 1 x 1 squares, each 1 x 1 square consists of a /, \, or blank space. These characters divide the square into contigu 阅读全文

摘要： 题目如下： Given a binary tree, determine if it is a complete binary tree. Definition of a complete binary tree from Wikipedia:In a complete binary tree ev 阅读全文

摘要： 题目如下： There are 8 prison cells in a row, and each cell is either occupied or vacant. Each day, whether the cell is occupied or vacant changes accordin 阅读全文

摘要： 题目如下： Given a list of airline tickets represented by pairs of departure and arrival airports [from, to], reconstruct the itinerary in order. All of th 阅读全文

摘要： 题目如下： In an alien language, surprisingly they also use english lowercase letters, but possibly in a different order. The order of the alphabet is some 阅读全文

摘要： 题目如下： Given an array of integers A with even length, return true if and only if it is possible to reorder it such that A[2 * i + 1] = 2 * A[2 * i] for 阅读全文