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leetcode/python/ 409. Longest Palindrome
problem solving/leetcode 2023. 4. 16. leetcode/python/ 409. Longest Palindrome Description Longest Palindrome - LeetCode Can you solve this real interview question? Longest Palindrome - Given a string s which consists of lowercase or uppercase letters, return the length of the longest palindrome that can be built with those letters. Letters are case sensitive, for example, leetcode.com Given a string s which consists of lowercase or uppercase letters, return the length of ..
problem solving/leetcode 2023. 4. 15. leetcode/python/ 121. Best Time to Buy and Sell Stock Description Best Time to Buy and Sell Stock - LeetCode Can you solve this real interview question? Best Time to Buy and Sell Stock - You are given an array prices where prices[i] is the price of a given stock on the ith day. You want to maximize your profit by choosing a single day to buy one stock and choosin leetcode.com You are given an array prices where prices[i] is the price of a given sto..
leetcode/python/ 142. Linked List Cycle II
problem solving/leetcode 2023. 4. 14. leetcode/python/ 142. Linked List Cycle II Description Linked List Cycle II - LeetCode Can you solve this real interview question? Linked List Cycle II - Given the head of a linked list, return the node where the cycle begins. If there is no cycle, return null. There is a cycle in a linked list if there is some node in the list that can be r leetcode.com Given the head of a linked list, return the node where the cycle begins. If there is..
leetcode/python/ 876. Middle of the Linked List
problem solving/leetcode 2023. 4. 14. leetcode/python/ 876. Middle of the Linked List Description Middle of the Linked List - LeetCode Can you solve this real interview question? Middle of the Linked List - Given the head of a singly linked list, return the middle node of the linked list. If there are two middle nodes, return the second middle node. Example 1: [https://assets.leetcode. leetcode.com Given the head of a singly linked list, return the middle node of the linked list...
spring/ JPA를 이용해 json 형태의 컬럼을 RDB에서 편리하게 다루기 (hypersistence-utils)
back-end/spring 2023. 4. 14. spring/ JPA를 이용해 json 형태의 컬럼을 RDB에서 편리하게 다루기 (hypersistence-utils) 프로젝트 스펙 상 메인 데이터베이스로 MySQL을 사용하고 있다. 하지만 도중에 문항에 대한 답을 매칭시켜 저장해야 하는 상황이 생겼고, 요구사항을 RDB 구조 그대로 가져가면서 충족시키기엔 문항에 대한 컬럼이 수없이 생겨야 했다. 그래서 알아보는 MySQL에 json 형식의 데이터 다루기. Project Spec Java 17 Spring 3.0.5 MySQL 8.0.31 JPA hibernate 6.0.6 { "1": "첫번째 데이터", "2": "두번째 데이터", "3": "세번째 데이터", "4": "네번째 데이터", "5": "다섯번째 데이터", "6": "짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴내용짱짱긴..
leetcode/python/ 206. Reverse Linked List
problem solving/leetcode 2023. 4. 12. leetcode/python/ 206. Reverse Linked List Description Reverse Linked List - LeetCode Can you solve this real interview question? Reverse Linked List - Given the head of a singly linked list, reverse the list, and return the reversed list. Example 1: [https://assets.leetcode.com/uploads/2021/02/19/rev1ex1.jpg] Input: head = [1,2,3,4,5] O leetcode.com Given the head of a singly linked list, reverse the list, and return the reversed list. ..

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