개발공부

[React] Deploy React App Using Heroku

Heroku is a platform as a service that enables developers to build, run and operate applications entirely in the cloud. I decided to use Heroku for my portfolio react app since it is very confident to deploy applications and I can easily update code with heroku commands. You also don't need to know complex server settings since heroku provides everything through the cloud! In order to start hero..

39. Combination Sum - 쉬운설명 반복문 사용

39. Combination Sum Given an array of distinct integers candidates and a target integer target, return a list of all unique combinations of candidates where the chosen numbers sum to target. You may return the combinations in any order. The same number may be chosen from candidates an unlimited number of times. Two combinations are unique if the frequency of at least one of the chosen numbers is..

171. Excel Sheet Column Number - 쉬운설명 반복문 사용

171. Excel Sheet Column Number Given a string columnTitle that represents the column title as appear in an Excel sheet, return its corresponding column number. A -> 1 B -> 2 C -> 3 ... Z -> 26 AA -> 27 AB -> 28 ... Example 1: Input: columnTitle = "A" Output: 1 Example 2: Input: columnTitle = "AB" Output: 28 Example 3: Input: columnTitle = "ZY" Output: 701 계획 문제 해결 전략 컬럼타이틀을 숫자로 바꾸어주는 문제입니다. 구현 전..

[Javascript] 13. Roman to Integer 쉬운설명 - 해시맵

13. Roman to Integer Roman numerals are represented by seven different symbols: I, V, X, L, C, D and M. Symbol Value I 1 V 5 X 10 L 50 C 100 D 500 M 1000 For example, 2 is written as II in Roman numeral, just two one's added together. 12 is written as XII, which is simply X + II. The number 27 is written as XXVII, which is XX + V + II. Roman numerals are usually written largest to smallest from ..