LeetCode - The World's Leading Online Programming Learning Platform Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com 문제 Given a string s, reverse only all the vowels in the string and return it. The vowels are 'a', 'e', 'i', 'o', and 'u', and they can appear in both lower and upper cases, mo..

LeetCode - The World's Leading Online Programming Learning Platform Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com 문제 You have n coins and you want to build a staircase with these coins. The staircase consists of k rows where the ith row has exactly i coins. The last row of the staircase m..

Combination Sum - LeetCode Can you solve this real interview question? Combination Sum - Given an array of distinct integers candidates and a target integer target, return a list of all unique combinations of candidates where the chosen numbers sum to target. You may return the comb leetcode.com 문제 Given an array of distinct integers candidates and a target integer target, return a list of all u..

Linked List Cycle - LeetCode Can you solve this real interview question? Linked List Cycle - Given head, the head of a linked list, determine if the linked list has a cycle in it. There is a cycle in a linked list if there is some node in the list that can be reached again by continuo leetcode.com 문제 Given head, the head of a linked list, determine if the linked list has a cycle in it. There is ..

Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold - LeetCode Can you solve this real interview question? Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold - Given an array of integers arr and two integers k and threshold, return the number of sub-arrays of size k and average greater than leetcode.com 문제 Given an array of integers arr and tw..