LeetCode 0819. Most Common Word(Python) 문제 Given a string paragraph and a string array of the banned words banned, return the most frequent word that is not banned. It is guaranteed there is at least one word that is not banned, and that the answer is unique. The words in paragraph are case-insensitive and the answer should be returned in lowercase. Example 1: Input: paragraph = "Bob hit a ball, the hit BALL flew far after it was hit...
LeetCode 0344. Reverse String(Python) 문제 Write a function that reverses a string. The input string is given as an array of characters char. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory. You may assume all the characters consist of printable ascii characters. Example 1: Input: ["h","e","l","l","o"] Output: ["o","l","l","e","h"] Example 2: Input: ["H","a..
LeetCode 0002. Add Two Numbers(Python) 문제 You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order, and each of their nodes contains a single digit. Add the two numbers and return the sum as a linked list. You may assume the two numbers do not contain any leading zero, except the number 0 itself. Example 1: Input: l1 = [2,4,3], l2 = [5,6,4] Output: [7,0,8] Explanation: 34..
LeetCode 0001. Two Sum 문제 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 thesameelement twice. You can return the answer in any order. Example 1: Input: nums = [2,7,11,15], target = 9 Output: [0,1] Output: Because nums + nums == 9, we return [0, 1]. Exampl..