jhphon0730

DescriptionThere are n people standing in a line labeled from 1 to n. The first person in the line is holding a pillow initially. Every second, the person holding the pillow passes it to the next person standing in the line. Once the pillow reaches the end of the line, the direction changes, and people continue passing the pillow in the opposite direction.For example, once the pillow reaches the..

DescriptionYou are given an integer array score of size n, where score[i] is the score of the ith athlete in a competition. All the scores are guaranteed to be unique.The athletes are placed based on their scores, where the 1st place athlete has the highest score, the 2nd place athlete has the 2nd highest score, and so on. The placement of each athlete determines their rank:The 1st place athlete..

DescriptionGiven two strings ransomNote and magazine, return true if ransomNote can be constructed by using the letters from magazine and false otherwise.Each letter in magazine can only be used once in ransomNote. Example 1:Input: ransomNote = "a", magazine = "b"Output: falseExample 2:Input: ransomNote = "aa", magazine = "ab"Output: falseExample 3:Input: ransomNote = "aa", magazine = "aab"Outpu..

DescriptionGiven the of a singly linked list, return the middle node of the linked list.headIf there are two middle nodes, return the second middle node. Example 1:Input: head = [1,2,3,4,5]Output: [3,4,5]Explanation: The middle node of the list is node 3.Example 2:Input: head = [1,2,3,4,5,6]Output: [4,5,6]Explanation: Since the list has two middle nodes with values 3 and 4, we return the second ..

DescriptionGiven an integer , return the number of steps to reduce it to zero.numIn one step, if the current number is even, you have to divide it by , otherwise, you have to subtract from it.21 Example 1:Input: num = 14Output: 6Explanation: Step 1) 14 is even; divide by 2 and obtain 7. Step 2) 7 is odd; subtract 1 and obtain 6.Step 3) 6 is even; divide by 2 and obtain 3. Step 4) 3 is odd; subtr..

DescriptionGiven an integer n, return a string array answer (1-indexed) where: answer[i] == "FizzBuzz" if i is divisible by 3 and 5. answer[i] == "Fizz" if i is divisible by 3. answer[i] == "Buzz" if i is divisible by 5. answer[i] == i (as a string) if none of the above conditions are true. Example 1:Input: n = 3Output: ["1","2","Fizz"]Example 2:Input: n = 5Output: ["1","2","Fizz","4..

DescriptionYou are given an m x n integer grid accounts where accounts[i][j] is the amount of money the i​​​​​​​​​​​th​​​​ customer has in the j​​​​​​​​​​​th​​​​ bank. Return the wealth that the richest customer has.A customer's wealth is the amount of money they have in all their bank accounts. The richest customer is the customer that has the maximum wealth. Example 1:Input: accounts = [[1,2,3..

DescriptionGiven an array nums. We define a running sum of an array as runningSum[i] = sum(nums[0]…nums[i]).Return the running sum of nums. Example 1:Input: nums = [1,2,3,4]Output: [1,3,6,10]Explanation: Running sum is obtained as follows: [1, 1+2, 1+2+3, 1+2+3+4].Example 2:Input: nums = [1,1,1,1,1]Output: [1,2,3,4,5]Explanation: Running sum is obtained as follows: [1, 1+1, 1+1+1, 1+1+1+1, 1+1+1..

DescriptionGiven 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 = 9Output: [0,1]Explanation: Because nums[0] + nums[1] == 9, we return [0, ..

머리를 식히기 위해 간단한 툴을 만들어보기틱톡 영상 다운로더 PRD틱톡에서 공유된 영상 URL을 이용하여 영상을 다운로드할 수 있는 도구 개발. 사용자는 URL을 입력하고, 시스템은 해당 영상을 자동으로 다운로드하여 원래의 제목으로 저장한다. 여러 개의 URL 입력 시 병렬 다운로드 지원.목표사용자는 URL을 입력하고 '다운로드' 버튼을 클릭하여 영상을 다운로드할 수 있다.사용자는 여러 개의 URL을 동시에 입력하여 병렬로 다운로드할 수 있다.다운로드된 파일은 원본 영상 제목으로 저장된다.사용자 스토리사용자는 메인 페이지에서 'URL 입력' 필드를 본다.URL을 입력하고 '다운로드' 버튼을 클릭한다.시스템은 입력된 URL에서 영상을 추출하고, 다운로드를 시작한다.다운로드가 완료되면, 사용자는 '다운로드 ..