LeetCode 485 Max Consecutive Ones 解题报告
摘要：
题目要求 Given a binary array, find the maximum number of consecutive 1s in this array. 题目分析及思路 给定一个01数组，要求找到这个数组中连续1的最大长度。可以考虑0的位置，结合数组切片，循环进行。要记得把最后数组的长 阅读全文
LeetCode 896 Monotonic Array 解题报告
摘要：
题目要求 An array is monotonic if it is either monotone increasing or monotone decreasing. An array A is monotone increasing if for all i <= j, A[i] <= A[ 阅读全文
LeetCode 706 Design HashMap 解题报告
摘要：
题目要求 Design a HashMap without using any built-in hash table libraries. To be specific, your design should include these functions: put(key, value) : I 阅读全文
LeetCode 427 Construct Quad Tree 解题报告
摘要：
题目要求 We want to use quad trees to store an N x N boolean grid. Each cell in the grid can only be true or false. The root node represents the whole gri 阅读全文
LeetCode 812 Largest Triangle Area 解题报告
摘要：
题目要求 You have a list of points in the plane. Return the area of the largest triangle that can be formed by any 3 of the points. 题目分析及思路 给定一个平面上的一组点，要求 阅读全文
LeetCode 292 Nim Game 解题报告
摘要：
题目要求 You are playing the following Nim Game with your friend: There is a heap of stones on the table, each time one of you take turns to remove 1 to 3 阅读全文
LeetCode 1012 Complement of Base 10 Integer 解题报告
摘要：
题目要求 Every non-negative integer N has a binary representation. For example, 5 can be represented as "101" in binary, 11 as "1011" in binary, and so on 阅读全文
LeetCode 784 Letter Case Permutation 解题报告
摘要：
题目要求 Given a string S, we can transform every letter individually to be lowercase or uppercase to create another string. Return a list of all possible 阅读全文
LeetCode 892 Surface Area of 3D Shapes 解题报告
摘要：
题目要求 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 阅读全文
LeetCode 917 Reverse Only Letters 解题报告
摘要：
题目要求 Given a string S, return the "reversed" string where all characters that are not a letter stay in the same place, and all letters reverse their p 阅读全文