takeU

const dx = [-1, 0, 1, 0]const dy = [0, -1, 0, 1] const dfs = (maps, visited, x, y, sum) => { visited[x][y] = 1 for (let i = 0; i { const res = [] const [x, y] = [maps.length, maps[0].length] const visited = Array.from({ length: x }, () => Array(y).fill(0)) for (let i = 0; i a - b) : [-1]}dfs

class MaxHeap { constructor() { this.heap = []; } getParentIndex(index) { return Math.floor((index - 1) / 2); } getLeftChildIndex(index) { return 2 * index + 1; } getRightChildIndex(index) { return 2 * index + 2; } swap(index1, index2) { [this.heap[index1], this.heap[index2]] = [this.heap[index2], this.heap[index1]]; } insert(value) { this.heap.push(value); this.h..

const checkSquare = (board, x, y) => { const block = board[x][y] if (board[x + 1][y] === block && board[x][y + 1] === block && board[x + 1][y + 1] === block) return true return false}const checkTargetBlocks = (m, n, board) => { const targetBlocks = [] for (let i = 0; i { let count = 0 targetBlocks.forEach(([x, y]) => { board[x][y] = 'Xcur' board[..

const bfs = (land, visited, cur, i, j) => { const dx = [-1, 0, 1, 0] const dy = [0, -1, 0, 1] const queue = [[i, j]] let count = 0; while (queue.length) { const [x, y] = queue.shift() visited[x][y] = 1 land[x][y] = cur for (let k = 0; k { const visited = Array.from({ length: land.length }, () => Array(land[0].length).fill(0)); const amount = {} ..

const solution = (diffs, times, limit) => { let [left, right] = [1, diffs.reduce((acc, cur) => Math.max(acc, cur), 1)] while (left = diffs[i]) cur += times[i] else cur += (diffs[i] - check) * (times[i] + times[i - 1]) + times[i] } if (cur > limit) left = check + 1 else right = check } return left}이분탐색30만에서 Math.max는 런타임 에러유발 -ㅠ-

const timeToSeconds = (time) => { const [minutes, seconds] = time.split(':').map(Number); return minutes * 60 + seconds;}const secondsToTime = (seconds) => { const minutes = Math.floor(seconds / 60); const remainingSeconds = seconds % 60; return `${String(minutes).padStart(2, '0')}:${String(remainingSeconds).padStart(2, '0')}`;};const solution = (video_len, pos, op_start, op_end, ..

function solution(friends, gifts) { const record = friends.reduce((obj, cur) => { obj[cur] = friends.reduce((count, name) => { if (cur !== name) count[name] = 0 return count }, {}) return obj }, {}) const index = friends.reduce((obj, cur) => { obj[cur] = 0 return obj }, {}) gifts.forEach(gift => { const [give, take] =..

NginX 설치sudo apt updatesudo apt install nginxNginX 커맨드sudo systemctl start nginx # 시작sudo systemctl restart nginx # 재시작sudo systemctl status nginx # 중지sudo systemctl enable nginx # 부팅 시 자동시작 설정NginX 설정 파일의 목적nginx.confNginx의 주요 설정 파일로, Nginx의 동작 방식을 정의/etc/nginx/nginx.conf 경로에 위치sites-available, sites-enabled이 두 디렉토리는 Nginx의 가상 호스트 설정을 관리하는데 사용sites-available활성화되지 않은 사이트의 설정 파일을 보관하는 디렉토리호스트별 ..

# 설치brew install mongodb-community# mongoDB 커맨드 설치brew install mongodb-community-shell# mongoDB 실행brew services restart mongodb/brew/mongodb-community유저 생성mongo# mongodb 쉘 접속use admindb.createUser({ user: 'yt', pwd:'asdasd', roles:[]})db.updateUser("yt", { roles: [ { role: "root", db: "admin" } ] })암호 설정vim /usr/local/etc/mongod.conf # 또는 /etc/mongod.conf해당 설정 추가security: authorization: "enabl..