Veritas des Liberty

摘要： On an infinite plane, a robot initially stands at (0, 0) and faces north. The robot can receive one of three instructions: "G": go straight 1 unit; "L 阅读全文

摘要： Given an array A of non-negative integers, the array is squareful if for every pair of adjacent elements, their sum is a perfect square. Return the nu 阅读全文

摘要： On a broken calculator that has a number showing on its display, we can perform two operations: Double: Multiply the number on the display by 2, or; D 阅读全文

摘要： Given an array A of positive lengths, return the largest perimeter of a triangle with non-zero area, formed from 3 of these lengths. If it is impossib 阅读全文

摘要： 1051. Height Checker Students are asked to stand in non-decreasing order of heights for an annual photo. Return the minimum number of students not sta 阅读全文

摘要： 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 to th 阅读全文

摘要： Given an array A of integers, for each integer A[i] we may choose any x with -K <= x <= K, and add x to A[i]. After this process, we have some array B 阅读全文

摘要： Let's say a positive integer is a superpalindrome if it is a palindrome, and it is also the square of a palindrome. Now, given two positive integers L 阅读全文

摘要： On a N * N grid, we place some 1 * 1 * 1 cubes. Each value v = grid[i][j] represents a tower of v cubes placed on top of grid cell (i, j). Return the 阅读全文

摘要： On a 2 dimensional grid with R rows and C columns, we start at (r0, c0) facing east. Here, the north-west corner of the grid is at the first row and c 阅读全文