‘Longest Palindromic Substrings’ in LeetCode (Medium) 📌 Problem https://leetcode.com/problems/longest-palindromic-substring/ 📌 Answer 1. Simple answer The point for ( ; 0 <= i &&...
[Data Sturcture] HashSet vs HashMap vs LinkedHashMap
HashSet 🆚 HashMap 📌 Let’s compare HashSet HashMap Implements Set Interface Map Interface Data Objects &...
[Algorithm] Longest Substring Without Repeating Characters
HashSet Detail ‘Longest Substring Without Repeating Characters’ in LeetCode (Medium) 📌 Problem https://leetcode.com/problems/longest-substring-without-repeating-characters/ 📌 Answer The poin...
[Diary] Modify goal
I found the good top 100 questions in LeetCode. Top 100 questions Plus, I also must solve the problems in HackerRank. So, I think I must reschedule my study plan. I will solve the problems a...
[Algorithm] Stack2
Stack Task ‘Min Stack’ in LeetCode (Easy) 📌 Problem https://leetcode.com/problems/min-stack/submissions/ 📌 Answer 1. Use Stack The point If a inputted data is minimum, push two times. Pop...