CNoodle

摘要： There are n balls on a table, each ball has a color black or white. You are given a 0-indexed binary string s of length n, where 1 and 0 represent bla 阅读全文

摘要： You have observations of n + m 6-sided dice rolls with each face numbered from 1 to 6. n of the observations went missing, and you only have the obser 阅读全文

摘要： You are given a 0-indexed integer array nums having length n, an integer indexDifference, and an integer valueDifference. Your task is to find two ind 阅读全文

摘要： You are given a 0-indexed integer array nums and an integer k. A subarray is called equal if all of its elements are equal. Note that the empty subarr 阅读全文

摘要： The XOR total of an array is defined as the bitwise XOR of all its elements, or 0 if the array is empty. For example, the XOR total of the array [2,5, 阅读全文

摘要： There are n projects numbered from 0 to n - 1. You are given an integer array milestones where each milestones[i] denotes the number of milestones the 阅读全文

摘要： You are given an array happiness of length n, and a positive integer k. There are n children standing in a queue, where the ith child has happiness va 阅读全文

摘要： You are given a 0-indexed integer array batteryPercentages having length n, denoting the battery percentages of n 0-indexed devices. Your task is to t 阅读全文

摘要： Alice and Bob want to water n plants in their garden. The plants are arranged in a row and are labeled from 0 to n - 1 from left to right where the it 阅读全文

摘要： You want to water n plants in your garden with a watering can. The plants are arranged in a row and are labeled from 0 to n - 1 from left to right whe 阅读全文

摘要： You are given the head of a linked list. Remove every node which has a node with a greater value anywhere to the right side of it. Return the head of 阅读全文

摘要： A truck has two fuel tanks. You are given two integers, mainTank representing the fuel present in the main tank in liters and additionalTank represent 阅读全文

摘要： There are n people in a line queuing to buy tickets, where the 0th person is at the front of the line and the (n - 1)th person is at the back of the l 阅读全文

摘要： You are given a positive integer n representing the number of nodes of a Directed Acyclic Graph (DAG). The nodes are numbered from 0 to n - 1 (inclusi 阅读全文

摘要： You are given an integer array nums and a positive integer k. Return the number of subarrays where the maximum element of nums appears at least k time 阅读全文

摘要： You are given a 0-indexed array nums consisting of positive integers. You can do the following operation on the array any number of times: Choose an i 阅读全文

摘要： You are given a string title consisting of one or more words separated by a single space, where each word consists of English letters. Capitalize the 阅读全文

摘要： You are given a 0-indexed string word of length n consisting of digits, and a positive integer m. The divisibility array div of word is an integer arr 阅读全文

摘要： Given a string s consisting only of characters 'a', 'b', and 'c'. You are asked to apply the following algorithm on the string any number of times: Pi 阅读全文

摘要： There is an undirected tree with n nodes labeled from 0 to n - 1 and n - 1 edges. You are given a 2D integer array edges of length n - 1 where edges[i 阅读全文