본문 바로가기

problem solving/algorithm study

problem solving/algorithm study 2023. 4. 29. 230428/ leetcode / python/ 617. Merge Two Binary Trees, 116. Populating Next Right Pointers in Each Node Problem 1 Merge Two Binary Trees - LeetCode Can you solve this real interview question? Merge Two Binary Trees - You are given two binary trees root1 and root2. Imagine that when you put one of them to cover the other, some nodes of the two trees are overlapped while the others are not. You need to leetcode.com Solution1 # Definition for a binary tree node. # class TreeNode: # def __init__(self,..
problem solving/algorithm study 2023. 4. 28. 230426/ leetcode / python/ 387. First Unique Character in a String, 383. Ransom Note, 242. Valid Anagram Problem 1 First Unique Character in a String - LeetCode Can you solve this real interview question? First Unique Character in a String - Given a string s, find the first non-repeating character in it and return its index. If it does not exist, return -1. Example 1: Input: s = "leetcode" Output: 0 Example 2: leetcode.com Solution1 class Solution: def firstUniqChar(self, s: str) -> int: alphas = {..
알고리즘 스터디라는 걸 해보기로 했다
problem solving/algorithm study 2023. 4. 28. 알고리즘 스터디라는 걸 해보기로 했다 거창한 건 아니지만 일단 꾸준히를 목표

티스토리툴바