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Python
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[Leetcode] 21. Merge Two Sorted Lists 유효한 괄호 21. Merge Two Sorted Lists https://leetcode.com/problems/merge-two-sorted-lists/ Merge two sorted linked lists and return it as a sorted list. The list should be made by splicing together the nodes of the first two lists. Example 1: Input: l1 = [1,2,4], l2 = [1,3,4] Output: [1,1,2,3,4,4] Example 2: Input: l1 = [], l2 = [] Output: [] Example 3: Input: l1 = [], l2 = [0] Output: [0] Constrai.. 2021. 6. 28.
[Leetcode] 937. Reorder Data in Log Files 로그 파일 재정렬 937. Reorder Data in Log Files https://leetcode.com/problems/reorder-data-in-log-files/ Write a function that reverses a string. The input string is given as an array of characters s. Example 1: Input: s = ["h","e","l","l","o"] Output: ["o","l","l","e","h"] Example 2: Input: s = ["H","a","n","n","a","h"] Output: ["h","a","n","n","a","H"] Constraints: 1 2021. 6. 26.
[Leetcode] 344.Reverse String 문자열 뒤집기 344. Reverse String https://leetcode.com/problems/reverse-string/ Write a function that reverses a string. The input string is given as an array of characters s. Example 1: Input: s = ["h","e","l","l","o"] Output: ["o","l","l","e","h"] Example 2: Input: s = ["H","a","n","n","a","h"] Output: ["h","a","n","n","a","H"] Constraints: 1 None: s.reverse() 2021. 6. 24.
[Leetcode] 238. Product of Array Except Self 자신을 제외한 배열의 곱 238. Product of Array Except Self https://leetcode.com/problems/product-of-array-except-self/ Given an integer array nums, return an array answer such that answer[i] is equal to the product of all the elements of nums except nums[i]. The product of any prefix or suffix of nums is guaranteed to fit in a 32-bit integer. You must write an algorithm that runs in O(n) time and without u.. 2021. 6. 23.
[Leetcode] 125.Valid Palindrome 유효한 팰린드롬 https://leetcode.com/problems/valid-palindrome/ 주어진 문자열이 팰린드롬인지 확인하라. 대소문자를 구분하지 않으며, 영문자와 숫자만을 대상으로 한다. Given a string s, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. Example 1: Input: s = "A man, a plan, a canal: Panama" Output: true Explanation: "amanaplanacanalpanama" is a palindrome. Example 2: Input: s = "race a car" Output: false E.. 2021. 6. 22.
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