https://leetcode.com/problems/construct-binary-tree-from-preorder-and-inorder-traversal/description/ Construct Binary Tree from Preorder and Inorder Traversal - LeetCode Can you solve this real interview question? Construct Binary Tree from Preorder and Inorder Traversal - Given two integer arrays preorder and inorder where preorder is the preorder traversal of a binary tree and inorder is the i..

https://leetcode.com/problems/number-of-operations-to-make-network-connected/description/ Number of Operations to Make Network Connected - LeetCode Can you solve this real interview question? Number of Operations to Make Network Connected - There are n computers numbered from 0 to n - 1 connected by ethernet cables connections forming a network where connections[i] = [ai, bi] represents a connec..

https://leetcode.com/problems/number-of-zero-filled-subarrays/description/ Number of Zero-Filled Subarrays - LeetCode Can you solve this real interview question? Number of Zero-Filled Subarrays - Given an integer array nums, return the number of subarrays filled with 0. A subarray is a contiguous non-empty sequence of elements within an array. Example 1: Input: nums = leetcode.com 문제 Given an in..

https://leetcode.com/problems/can-place-flowers/description/ 문제 You have a long flowerbed in which some of the plots are planted, and some are not. However, flowers cannot be planted in adjacent plots. Given an integer array flowerbed containing 0's and 1's, where 0 means empty and 1 means not empty, and an integer n, return if n new flowers can be planted in the flowerbed without violating the ..

https://leetcode.com/problems/design-add-and-search-words-data-structure/description/ Design Add and Search Words Data Structure - LeetCode Can you solve this real interview question? Design Add and Search Words Data Structure - Design a data structure that supports adding new words and finding if a string matches any previously added string. Implement the WordDictionary class: * WordDictionar l..