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[LeetCode] Group Anagrams
https://leetcode.com/problems/group-anagrams/ Given an array of strings strs, group the anagrams together. You can return the answer in any order. An Anagram is a word or phrase formed by rearranging the letters of a different word or phrase, typically using all the original letters exactly once. Example 1: Input: strs = ["eat","tea","tan","ate","nat","bat"] Output: [["bat"],["nat","tan"],["ate"..
→2022.05.03
Coding Test
[LeetCode] Two Sum
https://leetcode.com/problems/valid-parentheses/submissions/ Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume that each input would have exactly one solution, and you may not use the same element twice. You can return the answer in any order. Example 1: Input: nums = [2,7,11,15], target = 9 Output: [0,1] Expl..
→2022.04.24
Coding Test
[LeetCode] Validate Parentheses
https://leetcode.com/problems/valid-parentheses/ Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid if: Open brackets must be closed by the same type of brackets.Open brackets must be closed in the correct order. Example 1: Input: s = "()" Output: true Example 2: Input: s = "()[]{}" Output: true Exampl..
→2022.04.23

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