책 읽는 개발자

leetcode.com/problems/valid-parentheses/submissions/ Valid Parentheses - LeetCode Level up your coding skills and quickly land a job. This is the best place to expand your knowledge and get prepared for your next interview. leetcode.com Solution 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 char stack[10000]; int cnt = 0; void push(char c){ stack[cnt++..

programmers.co.kr/learn/courses/30/lessons/42747?language=java 코딩테스트 연습 - H-Index H-Index는 과학자의 생산성과 영향력을 나타내는 지표입니다. 어느 과학자의 H-Index를 나타내는 값인 h를 구하려고 합니다. 위키백과1에 따르면, H-Index는 다음과 같이 구합니다. 어떤 과학자가 발표 programmers.co.kr Solution 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 import java.util.Arrays; class Solution { public int solution(int[] citations) { int answer = 0; int len..

It's April. These days, the weather is very fine and air condition is also good. I woke up around 6:45 AM in the morning. So I could take the shuttle bus. Last night, I also slept late. Maybe around 1:00 AM. So I am a little bit sleepy now. Now, I am having a meal at the restaurant in the company while writing a log at the blog. [SAVERS] silience - taking a shower while thinking nothing affirmat..

I went to the company by the shuttle bus. This means that I got up early in the morning :) Last night, I slept eariler than usual. Maybe around 00:30 AM? So, I feel better than usual. I am having a meal at the restaurant in the company now while writing a miracle morning. Spring has already come. I wish COVID-19 ends and everybody have a hope for what they want. [SAVERS] silience - thinking noth..

제가 평소 존경하던 박종천 개발자님이 넥슨 부본부장님으로 계실때 발표하신 내용입니다. blog.naver.com/frogramo/221460243970 개발자가 갖추어야 할 9가지 기술 - 박종천 개발자님 안녕하세요. 개발자로 성장하는 학교, 구로디지털단지를 지키는 인크레파스입니다. 오늘은 박종천 전 넥슨 ... blog.naver.com

I got up early, maybe around 6:40 AM. But last night, I got sleep late, maybe over 00:30 AM, so I am a little bit tired. These days I am a little bit nervous with thinking my future, so I couldn't sleep fast. I need to do a meditation and get down my useless thoughts. Anyhow, I went to the comapnay early by the shuttle bus. Now I am having a meal while writing a log at the blog. [SAVERS] silienc..

I am tired today because I go sleep late last night. When I was studying in front of my PC, someone asked me some problem regarding python multi processing. I made a toy code, and tested it. but it was not working. So I completely concentrated it for resolving it, but I couldn't solve it. It was so weired. Anyhow, I got up early today, so I am sleepy now. [SAVERS] silience - thinking nothing whi..

I woke up late in the morning. I got up over 7:30 AM. So I took a subway to go to the company. I think I became a lazy person during the holidays. I need to change myself from today. Anyhow, today an air quality is very bad. According to the weather forecast news, the yellow dust has come in Korea. So I need to care of myself. It causes some alergy to me. Anyway I am writing a miracle morning lo..

programmers.co.kr/learn/courses/30/lessons/68645?language=c 코딩테스트 연습 - 삼각 달팽이 5 [1,2,12,3,13,11,4,14,15,10,5,6,7,8,9] 6 [1,2,15,3,16,14,4,17,21,13,5,18,19,20,12,6,7,8,9,10,11] programmers.co.kr Solution 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 #include int dx[3] = { 0, 1, -1 }; int dy[3] = { 1, 0, -1 }; int a[1000][1000]; int* solution(in..

programmers.co.kr/learn/courses/30/lessons/42746?language=java# 코딩테스트 연습 - 가장 큰 수 0 또는 양의 정수가 주어졌을 때, 정수를 이어 붙여 만들 수 있는 가장 큰 수를 알아내 주세요. 예를 들어, 주어진 정수가 [6, 10, 2]라면 [6102, 6210, 1062, 1026, 2610, 2106]를 만들 수 있고, 이중 가장 큰 programmers.co.kr Solution 직접 만든 sortAry 메소드 사용 시, logic은 맞지만, timeout이 난다. quick sort 등으로 바꿔서 코딩해볼 필요 있음. 속도 향상을 위해 java에서 제공하는 Arrays.sort()를 사용하였음. 1 2 3 4 5 6 7 8 9 10 11 12 ..