CNoodle

摘要： 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 阅读全文

摘要： Given a string s and a character c that occurs in s, return an array of integers answer where answer.length == s.length and answer[i] is the shortest 阅读全文

摘要： Given an array nums with n integers, your task is to check if it could become non-decreasing by modifying at most one element. We define an array is n 阅读全文

摘要： There are several cards arranged in a row, and each card has an associated number of points. The points are given in the integer array cardPoints. In 阅读全文

摘要： We define a harmonious array as an array where the difference between its maximum value and its minimum value is exactly 1. Given an integer array num 阅读全文

摘要： You are given a string s that consists of lower case English letters and brackets. Reverse the strings in each pair of matching parentheses, starting  阅读全文

摘要： Given an integer array arr, and an integer target, return the number of tuples i, j, k such that i < j < k and arr[i] + arr[j] + arr[k] == target. As 阅读全文

摘要： You are given an integer array nums consisting of n elements, and an integer k. Find a contiguous subarray whose length is equal to k that has the max 阅读全文

摘要： Given the root of a binary search tree and the lowest and highest boundaries as low and high, trim the tree so that all its elements lies in [low, hig 阅读全文

摘要： There is an integer array nums that consists of n unique elements, but you have forgotten it. However, you do remember every pair of adjacent elements 阅读全文

摘要： Alice and Bob have candy bars of different sizes: A[i] is the size of the i-th bar of candy that Alice has, and B[j] is the size of the j-th bar of ca 阅读全文

摘要： Given a matrix of integers A with R rows and C columns, find the maximum score of a path starting at [0,0] and ending at [R-1,C-1]. The score of a pat 阅读全文

摘要： You are a hiker preparing for an upcoming hike. You are given heights, a 2D array of size rows x columns, where heights[row][col] represents the heigh 阅读全文

摘要： Given a root of an N-ary tree, you need to compute the length of the diameter of the tree. The diameter of an N-ary tree is the length of the longest  阅读全文

摘要： A company has n employees with a unique ID for each employee from 0 to n - 1. The head of the company has is the one with headID. Each employee has on 阅读全文

摘要： The numeric value of a lowercase character is defined as its position (1-indexed) in the alphabet, so the numeric value of a is 1, the numeric value o 阅读全文

摘要： Given an array arr of 4 digits, find the latest 24-hour time that can be made using each digit exactly once. 24-hour times are formatted as "HH:MM", w 阅读全文

摘要： Given a list of dominoes, dominoes[i] = [a, b] is equivalent to dominoes[j] = [c, d] if and only if either (a==c and b==d), or (a==d and b==c) - that 阅读全文

摘要： Two strings are considered close if you can attain one from the other using the following operations: Operation 1: Swap any two existing characters. F 阅读全文

摘要： A cinema has n rows of seats, numbered from 1 to n and there are ten seats in each row, labelled from 1 to 10 as shown in the figure above. Given the 阅读全文