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C++(3) leetcode(python)(17) 比赛(1)

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leetcode-94 Binary Tree Inorder Traversal

Given the root of a binary tree, return the inorder traversal of its nodes' values. 示例： Input: root = [1,null,2,3] Output: [1,3,2] 本题就是一个简...

2020-11-03

0 381

leetcode-1418 Display Table of Food Orders in a Restaurant

Given the array orders, which represents the orders that customers have done in a restaurant. More specifically orders[i][customerNamei,tableNumberi,f...

2020-11-03

0 502

leetcode-1261 Find Elements in a Contaminated Binary Tree

Given a binary tree with the following rules: root.val == 0 If treeNode.val == x and treeNode.left != null, then treeNode.left.val == 2 * x + 1 If tr...

2020-11-02

0 414

leetcode-961 N-Repeated Element in Size 2N Array

题目： 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 ...

2020-11-02

0 438

leetcode-343 Integer Break

Given a positive integer n, break it into the sum of at least two positive integers and maximize the product of those integers. Return the maximum pro...

2020-11-01

0 468

leetcode-1508 Range Sum of Sorted Subarray Sums

Given the array nums consisting of n positive integers. You computed the sum of all non-empty continous subarrays from the array and then sort them in...

2020-11-01

0 374

leetcode-1414 Find the Minimum Number of Fibonacci Numbers Whose Sum Is K

Given an integer k, return the minimum number of Fibonacci numbers whose sum is equal to k. The same Fibonacci number can be used multiple times. The...

2020-11-01

0 390

leetcode -695 Max Area of Island

Given a non-empty 2D array grid of 0's and 1's, an island is a group of 1's (representing land) connected 4-directionally (horizontal or vertical.) Yo...

2020-11-01

0 375

leetcode-1375

There is a room with n bulbs, numbered from 1 to n, arranged in a row from left to right. Initially, all the bulbs are turned off.At moment k (for k f...

2020-11-01

0 341

leetcode-1338 Reduce Array Size to The Half

题目： Given an array arr. You can choose a set of integers and remove all the occurrences of these integers in the array. Return the minimum size of ...

2020-11-01

0 499