Design and implement a data structure for Least Recently Used (LRU) cache. It should support the f…

Plus One Given a non-negative number represented as an array of digits, plus one to the number. The digits are…

Implement an iterator over a binary search tree (BST). Your iterator will be initialized with the root node of…

  Given an array of n integers nums and a target, find the number of index tripl…

  Given a list of non-negative numbers and a target integer k, write a function to check if the array has…

欢迎fork and star：Nowcoder-Repository-github 18. 4Sum 题目 Given an array S of n integers, are there elements a, b…

15. 3Sum 题目 Given an array S of n integers, are there elements a, b, c in S such that a + b + c = 0? Find all …

题目描述 Given an array of integers, find if the array contains any duplicates. Your function should return true i…

  There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the …

  Given an array of words and a length L, format the text such that each line has exactly L&nbs…

题目： Given a sorted array and a target value, return the index if the target is found. If not, return the index…

Kth Smallest Element in a BST Given a binary search tree, write a function kthSmallest to find the kth smalles…