CNoodle

摘要： You are given a 0-indexed integer array nums of even length consisting of an equal number of positive and negative integers. You should rearrange the 阅读全文

摘要： Given the root of a binary tree, return the number of nodes where the value of the node is equal to the average of the values in its subtree. Note: Th 阅读全文

摘要： Given a 0-indexed integer array nums, find a 0-indexed integer array answer where: answer.length == nums.length. answer[i] = |leftSum[i] - rightSum[i] 阅读全文

摘要： (This problem is an interactive problem.) Each ship is located at an integer point on the sea represented by a cartesian plane, and each integer point 阅读全文

摘要： You are given an integer array gifts denoting the number of gifts in various piles. Every second, you do the following: Choose the pile with the maxim 阅读全文

摘要： A transaction is possibly invalid if: the amount exceeds $1000, or; if it occurs within (and including) 60 minutes of another transaction with the sam 阅读全文

摘要： Given an array nums of distinct positive integers, return the number of tuples (a, b, c, d) such that a * b = c * d where a, b, c, and d are elements 阅读全文

摘要： Given four integers length, width, height, and mass, representing the dimensions and mass of a box, respectively, return a string representing the cat 阅读全文

摘要： You are given a 0-indexed integer array nums and an integer k. You have a starting score of 0. In one operation: choose an index i such that 0 <= i < 阅读全文

摘要： Given a positive integer num, split it into two non-negative integers num1 and num2 such that: The concatenation of num1 and num2 is a permutation of  阅读全文

摘要： There are n people standing in a line labeled from 1 to n. The first person in the line is holding a pillow initially. Every second, the person holdin 阅读全文

摘要： On a 0-indexed 8 x 8 chessboard, there can be multiple black queens ad one white king. You are given a 2D integer array queens where queens[i] = [xQue 阅读全文

摘要： There is a knight on an n x n chessboard. In a valid configuration, the knight starts at the top-left cell of the board and visits every cell on the b 阅读全文

摘要： You are given two integers n and k and two integer arrays speed and efficiency both of length n. There are n engineers numbered from 1 to n. speed[i]  阅读全文

摘要： You are given an integer array ranks representing the ranks of some mechanics. ranksi is the rank of the ith mechanic. A mechanic with a rank r can re 阅读全文

摘要： You are given an integer array pref of size n. Find and return the array arr of size n that satisfies: pref[i] = arr[0] ^ arr[1] ^ ... ^ arr[i]. Note 阅读全文

摘要： You are given a 0-indexed string s and a dictionary of words dictionary. You have to break s into one or more non-overlapping substrings such that eac 阅读全文

摘要： You are playing a video game where you are defending your city from a group of n monsters. You are given a 0-indexed integer array dist of size n, whe 阅读全文

摘要： Given an integer n and an integer array rounds. We have a circular track which consists of n sectors labeled from 1 to n. A marathon will be held on t 阅读全文

摘要： You are given a 0-indexed integer array forts of length n representing the positions of several forts. forts[i] can be -1, 0, or 1 where: -1 represent 阅读全文