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코딩테스트 스터디
코딩테스트 스터디
코딩테스트 스터디

코딩테스트 스터디

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스터디
 
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스터디 진행 방식: 정해진 날짜에 맞춰 하단 공유된 문제를 풀고 구글 밋으로 풀이 및 해설을 진행합니다.
 
 
문제
Title
Type
Link
Status
Deadline
글라인드 169
https://www.techinterviewhandbook.org/grind75?weeks=28&hours=6
In progress ✍️
과제 진행하기
stack
recursive function
https://school.programmers.co.kr/learn/courses/30/lessons/176962
Archived
Apr 4, 2023
Jump Game II
Array
DP
greedy
https://leetcode.com/problems/jump-game-ii/
Archived
Mar 28, 2023
Number of Zero-Filled Subarray
Array
https://leetcode.com/problems/number-of-zero-filled-subarrays/
Archived
Mar 28, 2023
표현 가능한 이진트리
Binary Tree
https://school.programmers.co.kr/learn/courses/30/lessons/150367
Archived
Mar 14, 2023
덧칠하기
Binary Search
greedy
https://school.programmers.co.kr/learn/courses/30/lessons/161989
Archived
Mar 14, 2023
표 병합
구현
union-find
https://school.programmers.co.kr/learn/courses/30/lessons/150366
Archived
Mar 7, 2023
k진수에서 소수 개수 구하기
string
https://school.programmers.co.kr/learn/courses/30/lessons/92335
Archived
Mar 7, 2023
Minimum Fuel Cost to Report to the Capital
Tree
DFS
BFS
https://leetcode.com/problems/Minimum-Fuel-Cost-to-Report-to-the-Capital/
Archived
Feb 28, 2023
Capacity To Ship Packages Within D Days
Array
Binary Search
https://leetcode.com/problems/capacity-to-ship-packages-within-d-days/
Archived
Feb 28, 2023
택배 배달과 수거하기
greedy
https://school.programmers.co.kr/learn/courses/30/lessons/150369
Archived
Feb 21, 2023
이모티콘 할인행사
DFS
Backtracking
https://school.programmers.co.kr/learn/courses/30/lessons/150368
Archived
Feb 21, 2023
사라지는 발판
Minimax Tree
Backtracking
https://school.programmers.co.kr/learn/courses/30/lessons/92345
Archived
Feb 14, 2023
억억단을 외우자
DP
https://school.programmers.co.kr/learn/courses/30/lessons/138475
Archived
Feb 14, 2023
Minimum Time to Collect All Apples in a Tree
Hash Table
Tree
DFS
BFS
https://leetcode.com/problems/minimum-time-to-collect-all-apples-in-a-tree/
Archived
Feb 1, 2023
Gas Station
Array
greedy
Prefix Sum
https://leetcode.com/problems/gas-station/
Archived
Feb 1, 2023
행렬과 연산
Deque
linked list
https://school.programmers.co.kr/learn/courses/30/lessons/118670?language=javascript
Archived
Jan 24, 2023
Minimum Number of Arrows to Burst Balloons
greedy
https://leetcode.com/problems/minimum-number-of-arrows-to-burst-balloons/
Archived
Jan 17, 2023
Number of Nodes in the Sub-Tree With the Same Label
Hash Table
Tree
DFS
BFS
https://leetcode.com/problems/number-of-nodes-in-the-sub-tree-with-the-same-label/
Archived
Jan 17, 2023
쌍둥이 빌딩 숲
DP
https://school.programmers.co.kr/learn/courses/30/lessons/140105
Archived
Jan 10, 2023
숫자 타자 대회
DP
https://school.programmers.co.kr/learn/courses/30/lessons/136797
Archived
Jan 10, 2023
Number of Provinces
DFS
BFS
union-find
https://leetcode.com/problems/number-of-provinces/
Archived
Dec 27, 2022
Lexicographical Numbers
DFS
Trie
https://leetcode.com/problems/lexicographical-numbers/
Archived
Dec 27, 2022
2차원 동전 뒤집기
greedy
Bit Mask
Brute Force
DFS
https://school.programmers.co.kr/learn/courses/30/lessons/131703
Archived
Dec 20, 2022
디펜스 게임
greedy
heap
https://school.programmers.co.kr/learn/courses/30/lessons/142085
Archived
Dec 20, 2022
Odd Even Linked List
linked list
https://leetcode.com/problems/odd-even-linked-list/
Archived
Dec 13, 2022
Reorder List
linked list
Two-Pointer
recursion
https://leetcode.com/problems/reorder-list/
Archived
Dec 13, 2022
등산코스 정하기
Dijkstra
https://school.programmers.co.kr/learn/courses/30/lessons/118669
Archived
Dec 6, 2022
거스름돈
dynamic programming
https://school.programmers.co.kr/learn/courses/30/lessons/12907
Archived
Dec 6, 2022
구름 코테 8주차
heap
stack
dynamic programming
구현
https://level.goorm.io/l/challenge
Archived
Nov 29, 2022
구름 코테 7주차
BFS
DFS
Dijkstra
구현
union-find
https://level.goorm.io/l/challenge
Archived
Nov 20, 2022
구름 코테 6주차
imos
구현
string
https://level.goorm.io/l/challenge
Archived
Nov 15, 2022
구름 코테 5주차
dynamic programming
구현
https://level.goorm.io/l/challenge
Archived
Oct 30, 2022
구름 코테 4주차
dynamic programming
BFS
DFS
https://level.goorm.io/l/challenge
Archived
Oct 30, 2022
구름 코테 3주차
DFS
BFS
구현
https://level.goorm.io/l/challenge
Archived
Oct 23, 2022
구름 코테 2주차
구현
https://level.goorm.io/l/challenge
Archived
Oct 16, 2022
구름 코테 1주차
구현
https://level.goorm.io/l/challenge
Archived
Oct 9, 2022
Path Sum II
Backtracking
DFS
https://leetcode.com/problems/path-sum-ii/
Archived
Oct 2, 2022
Non-overlapping Intervals
greedy
dynamic programming
https://leetcode.com/problems/non-overlapping-intervals/
Archived
Oct 2, 2022
단속카메라
greedy
https://school.programmers.co.kr/learn/courses/30/lessons/42884
Archived
Sep 25, 2022
모음 사전
Brute Force
https://school.programmers.co.kr/learn/courses/30/lessons/84512
Archived
Sep 25, 2022
기둥과 보 설치
구현
https://school.programmers.co.kr/learn/courses/30/lessons/60061
Archived
Sep 18, 2022
파괴되지 않은 건물
imos
https://school.programmers.co.kr/learn/courses/30/lessons/92344
Archived
Sep 18, 2022
Count Good Nodes in Binary Tree
Binary Tree
DFS
BFS
https://leetcode.com/problems/count-good-nodes-in-binary-tree/
Archived
Sep 11, 2022
Numbers With Same Consecutive Differences
Backtracking
BFS
https://leetcode.com/problems/numbers-with-same-consecutive-differences/
Archived
Sep 11, 2022
자동완성
Trie
https://school.programmers.co.kr/learn/courses/30/lessons/17685
Archived
Aug 28, 2022
삼각 달팽이
Matrix
https://school.programmers.co.kr/learn/courses/30/lessons/68645
Archived
Aug 28, 2022
Min Cost to Connect All Points
Array
union-find
https://leetcode.com/problems/min-cost-to-connect-all-points/
Archived
Aug 21, 2022
Longest Increasing Subsequence
Array
dynamic programming
https://leetcode.com/problems/longest-increasing-subsequence/
Archived
Aug 21, 2022
지형 편집
Parametric Search
https://school.programmers.co.kr/learn/courses/30/lessons/12984
Archived
Aug 7, 2022
쿠키 구입
Two-Pointer
https://school.programmers.co.kr/learn/courses/30/lessons/49995
Archived
Aug 7, 2022
Diagonal-traverse
Simulation
https://leetcode.com/problems/diagonal-traverse/
Archived
Jul 31, 2022
Game of Life
Simulation
https://leetcode.com/problems/game-of-life/
Archived
Jul 31, 2022
Rotate Image
Matrix
Array
https://leetcode.com/problems/rotate-image/
Archived
Jul 24, 2022
최적의 행렬 곱셈
dynamic programming
https://school.programmers.co.kr/learn/courses/30/lessons/12942
Archived
Jul 17, 2022
3 x n 타일링
dynamic programming
https://school.programmers.co.kr/learn/courses/30/lessons/12902
Archived
Jul 17, 2022
Candy
greedy
Array
https://leetcode.com/problems/candy/
Archived
Jul 10, 2022
Wiggle Subsequence
greedy
Array
dynamic programming
https://leetcode.com/problems/wiggle-subsequence/
Archived
Jul 10, 2022
Maximum Units on a Truck
greedy
Array
Sort
https://leetcode.com/problems/maximum-units-on-a-truck/
Archived
Jul 10, 2022
Furthest Building You Can Reach
greedy
heap
Array
https://leetcode.com/problems/furthest-building-you-can-reach/
Archived
Jul 3, 2022
Non-decreasing Array
Array
https://leetcode.com/problems/non-decreasing-array/
Archived
Jul 3, 2022
길 찾기 게임
Binary Tree
https://programmers.co.kr/learn/courses/30/lessons/42892
Archived
Jun 26, 2022
Maximum Erasure Value
Array
Hash Table
https://leetcode.com/problems/maximum-erasure-value/
Archived
Jun 19, 2022
Delete Operation for Two Strings
dynamic programming
string
https://leetcode.com/problems/delete-operation-for-two-strings/
Archived
Jun 19, 2022
All Possible Full Binary Trees
dynamic programming
recursion
https://leetcode.com/problems/all-possible-full-binary-trees/
Archived
Jun 12, 2022
Count Square Submatrices with All Ones
dynamic programming
Array
Matrix
https://leetcode.com/problems/count-square-submatrices-with-all-ones/
Archived
Jun 12, 2022
야근 지수
greedy
heap
https://programmers.co.kr/learn/courses/30/lessons/12927
Archived
Jun 5, 2022
아이템 줍기
BFS
https://programmers.co.kr/learn/courses/30/lessons/87694
Archived
Jun 5, 2022
Deepest Leaves Sum
DFS
BFS
https://leetcode.com/problems/deepest-leaves-sum/
Archived
May 21, 2022
Count Sorted Vowel Strings
dynamic programming
https://leetcode.com/problems/count-sorted-vowel-strings/
Archived
May 21, 2022
Number of Islands
DFS
BFS
union-find
Matrix
https://leetcode.com/problems/number-of-islands/
Archived
May 15, 2022
Longest Consecutive Sequence
union-find
Hash Table
https://leetcode.com/problems/longest-consecutive-sequence/
Archived
May 15, 2022
피로도
BFS
DFS
Permutation
https://programmers.co.kr/learn/courses/30/lessons/87946
Archived
Apr 30, 2022
Kth Smallest Element in a BST
DFS
BFS
Tree
Binary Tree
https://leetcode.com/problems/kth-smallest-element-in-a-bst/
Archived
Apr 23, 2022
Flatten a Multilevel Doubly Linked List
linked list
DFS
https://leetcode.com/problems/flatten-a-multilevel-doubly-linked-list/
Archived
Apr 16, 2022
Merge Nodes in Between Zeros
linked list
https://leetcode.com/problems/merge-nodes-in-between-zeros/
Archived
Apr 16, 2022
Find First and Last Position of Element in Sorted Array
Binary Search
https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/
Archived
Apr 9, 2022
Swapping Nodes in a Linked List
linked list
https://leetcode.com/problems/swapping-nodes-in-a-linked-list/
Archived
Apr 9, 2022
빛의 경로 사이클
BFS
https://programmers.co.kr/learn/courses/30/lessons/86052
Archived
Apr 2, 2022
쿼드 압축 후 개수 세기
recursive function
https://programmers.co.kr/learn/courses/30/lessons/68936?language=javascript
Archived
Apr 2, 2022
Search a 2D Matrix
Binary Search
Matrix
https://leetcode.com/problems/search-a-2d-matrix/
Archived
Mar 22, 2022
Letter Combinations of a Phone Number
Hash Table
Backtracking
https://leetcode.com/problems/letter-combinations-of-a-phone-number/
Archived
Mar 22, 2022
가사검색
Trie
Binary Search
https://programmers.co.kr/learn/courses/30/lessons/60060
Archived
Mar 19, 2022
방문 길이
구현
https://programmers.co.kr/learn/courses/30/lessons/49994
Archived
Mar 19, 2022
Max Area of Island
BFS
DFS
https://leetcode.com/problems/max-area-of-island/
Archived
Mar 12, 2022
Permutation in String
string
Hash Table
Two-Pointer
https://leetcode.com/problems/permutation-in-string/
Archived
Mar 12, 2022
Remove nth Node from end of list
linked list
https://leetcode.com/problems/remove-nth-node-from-end-of-list/
Archived
Mar 12, 2022
Power of Three
recursion
https://leetcode.com/problems/power-of-three/
Archived
Mar 5, 2022
Shuffle an Array
Array
https://leetcode.com/problems/shuffle-an-array/
Archived
Mar 5, 2022
Populating Next Right Pointers in Each Node
DFS
BFS
https://leetcode.com/problems/populating-next-right-pointers-in-each-node/
Archived
Mar 5, 2022
하노이의 탑(추억의 알고리즘...★)
recursive function
https://programmers.co.kr/learn/courses/30/lessons/12946
Archived
Feb 26, 2022
110옮기기
greedy
https://programmers.co.kr/learn/courses/30/lessons/77886
Archived
Feb 26, 2022
광고삽입
Two-Pointer
https://programmers.co.kr/learn/courses/30/lessons/72414
Archived
Feb 26, 2022
양궁 대회
Brute Force
https://programmers.co.kr/learn/courses/30/lessons/92342
Archived
Feb 19, 2022
주차 요금 계산
string
hash map
https://programmers.co.kr/learn/courses/30/lessons/92341
Archived
Feb 19, 2022
Stock Price Fluctuation
Hash Table
heap
https://leetcode.com/problems/stock-price-fluctuation/
Archived
Feb 12, 2022
Find And Replace in String
Sort
string
Array
https://leetcode.com/problems/find-and-replace-in-string/
Archived
Feb 12, 2022
Rearrange Spaces Between Words
string
https://leetcode.com/problems/rearrange-spaces-between-words/
Archived
Feb 12, 2022
양과 늑대
BFS
DFS
dynamic programming
https://programmers.co.kr/learn/courses/30/lessons/92343
Archived
Jan 29, 2022
동굴탐험
BFS
Topology sort
https://programmers.co.kr/learn/courses/30/lessons/67260
Archived
Jan 29, 2022
스킬트리
Topology sort
https://programmers.co.kr/learn/courses/30/lessons/49993
Archived
Jan 29, 2022
Path With Minimum Effort
Dijkstra
https://leetcode.com/problems/path-with-minimum-effort/
Archived
Jan 22, 2022
Minimum Path Sum
dynamic programming
https://leetcode.com/problems/minimum-path-sum/
Archived
Jan 22, 2022
Network Delay Time
Dijkstra
https://leetcode.com/problems/network-delay-time/
Archived
Jan 22, 2022
Find Original Array From Doubled Array
Hash Table
greedy
https://leetcode.com/problems/find-original-array-from-doubled-array/
Archived
Jan 15, 2022
Maximum Number of Points with Cost
dynamic programming
https://leetcode.com/problems/maximum-number-of-points-with-cost/
Archived
Jan 13, 2022
Snapshot Array
Hash Table
Binary Search
https://leetcode.com/problems/snapshot-array/
Archived
Jan 11, 2022
카드 짝 맞추기
Backtracking
Shortest Path
https://programmers.co.kr/learn/courses/30/lessons/72415
Archived
Jan 8, 2022
스티커 모으기(2)
구간합
dynamic programming
https://programmers.co.kr/learn/courses/30/lessons/12971
Archived
Jan 6, 2022
기지국 설치
Brute Force
https://programmers.co.kr/learn/courses/30/lessons/12979
Archived
Jan 4, 2022
표 편집
linked list
https://programmers.co.kr/learn/courses/30/lessons/81303
Archived
Dec 28, 2021
점프와 순간이동
greedy
https://programmers.co.kr/learn/courses/30/lessons/12980
Archived
Dec 21, 2021
Minesweeper
DFS
https://leetcode.com/problems/minesweeper/
Archived
Dec 18, 2021
Sum of All Subset XOR Totals
Backtracking
https://leetcode.com/problems/sum-of-all-subset-xor-totals/
Archived
Dec 16, 2021
Range Sum of BST
DFS
Binary Search
https://leetcode.com/problems/range-sum-of-bst/
Archived
Dec 14, 2021
다단계 칫솔 판매
hash map
https://programmers.co.kr/learn/courses/30/lessons/77486
Archived
Dec 11, 2021
금과 은 운반하기
Binary Search
https://programmers.co.kr/learn/courses/30/lessons/86053
Archived
Dec 9, 2021
불량 사용자
string
경우의수
https://programmers.co.kr/learn/courses/30/lessons/64064
Archived
Dec 7, 2021
거리두기 확인하기
BFS
https://programmers.co.kr/learn/courses/30/lessons/81302
Archived
Dec 4, 2021
전력망을 둘로 나누기
BFS
https://programmers.co.kr/learn/courses/30/lessons/86971
Archived
Dec 2, 2021
단어 변환
BFS
https://programmers.co.kr/learn/courses/30/lessons/43163
Archived
Nov 30, 2021
K Closest Points to Origin
heap
https://leetcode.com/problems/k-closest-points-to-origin/
Archived
Nov 27, 2021
Reorganize String
heap
Hash Table
https://leetcode.com/problems/reorganize-string/
Archived
Nov 25, 2021
Kth Largest Element in an Array
heap
https://leetcode.com/problems/kth-largest-element-in-an-array/
Archived
Nov 23, 2021
Rearrange Words In A Sentence
string
https://leetcode.com/problems/rearrange-words-in-a-sentence/
Archived
Nov 20, 2021
Minimum Number of Swaps To Make The String Balanced
string
https://leetcode.com/problems/minimum-number-of-swaps-to-make-the-string-balanced/
Archived
Nov 18, 2021
Count and Say
string
https://leetcode.com/problems/count-and-say/
Archived
Nov 16, 2021
호텔 방 배정
union-find
https://programmers.co.kr/learn/courses/30/lessons/64063
Archived
Nov 13, 2021
섬 연결하기
union-find
https://programmers.co.kr/learn/courses/30/lessons/42861
Archived
Nov 12, 2021
네트워크
union-find
https://programmers.co.kr/learn/courses/30/lessons/43162?language=javascript
Archived
Nov 9, 2021
Subdomain Visit Count
Hash Table
https://leetcode.com/problems/subdomain-visit-count/
Archived
Nov 6, 2021
Subarray Sum Equals K
Hash Table
Prefix Sum
https://leetcode.com/problems/subarray-sum-equals-k/
Archived
Nov 4, 2021
Longest Substring Without Repeating Characters
Hash Table
https://leetcode.com/problems/longest-substring-without-repeating-characters/
Archived
Nov 2, 2021
Evaluate Division
BFS
Floyd Warshall
https://leetcode.com/problems/evaluate-division/
Archived
Oct 30, 2021
배달
Dijkstra
https://programmers.co.kr/learn/courses/30/lessons/12978
Archived
Oct 28, 2021
합승 택시 요금
Floyd Warshall
https://programmers.co.kr/learn/courses/30/lessons/72413
Archived
Oct 26, 2021
순위
BFS
Floyd Warshall
https://programmers.co.kr/learn/courses/30/lessons/49191
Archived
Oct 23, 2021
게임 맵 최단 거리
BFS
https://programmers.co.kr/learn/courses/30/lessons/1844
Archived
Oct 21, 2021
타겟 넘버
BFS
DFS
https://programmers.co.kr/learn/courses/30/lessons/43165
Archived
Oct 19, 2021
Generate Parentheses
dynamic programming
Backtracking
https://leetcode.com/problems/generate-parentheses/
Archived
Oct 16, 2021
Longest Palindromic Substring
dynamic programming
https://leetcode.com/problems/longest-palindromic-substring/
Archived
Oct 14, 2021
Maximum Subarray
dynamic programming
https://leetcode.com/problems/maximum-subarray/
Archived
Oct 12, 2021
Gas Station
greedy
https://leetcode.com/problems/gas-station/
Archived
Oct 9, 2021
Jump Game
greedy
dynamic programming
https://leetcode.com/problems/jump-game/
Archived
Oct 7, 2021
Array Partition I
greedy
Sort
https://leetcode.com/problems/array-partition-i/
Archived
Oct 5, 2021
예산
Binary Search
https://programmers.co.kr/learn/courses/30/lessons/12982
Archived
Oct 2, 2021
징검다리 건너기
Binary Search
https://programmers.co.kr/learn/courses/30/lessons/64062
Archived
Sep 30, 2021
순위 검색
Binary Search
Hash Table
https://programmers.co.kr/learn/courses/30/lessons/72412
Archived
Sep 28, 2021
N-Queens
Backtracking
https://leetcode.com/problems/n-queens/
Archived
Sep 25, 2021
Combinations
Backtracking
https://leetcode.com/problems/combinations/
Archived
Sep 23, 2021
Permutations
Backtracking
https://leetcode.com/problems/permutations/
Archived
Sep 21, 2021
Container With Most Water
greedy
Two-Pointer
https://leetcode.com/problems/container-with-most-water/
Archived
Sep 18, 2021
Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts
greedy
Sort
https://leetcode.com/problems/maximum-area-of-a-piece-of-cake-after-horizontal-and-vertical-cuts/
Archived
Sep 16, 2021
Valid Palindrome II
greedy
Two-Pointer
https://leetcode.com/problems/valid-palindrome-ii/
Archived
Sep 14, 2021
위클리 챌린지 6주차(보너스)
Sort
https://programmers.co.kr/learn/courses/30/lessons/85002
Archived
Sep 11, 2021
나이트의 이동
DFS
BFS
https://www.acmicpc.net/problem/7562
Archived
Sep 11, 2021
Island Permeter
DFS
BFS
https://leetcode.com/problems/island-perimeter/
Archived
Sep 9, 2021
Sum of Left Leaves
DFS
https://leetcode.com/problems/sum-of-left-leaves/
Archived
Sep 7, 2021
보석 쇼핑
Two-Pointer
https://programmers.co.kr/learn/courses/30/lessons/67258
Archived
Sep 4, 2021
124 나라의 숫자
recursive function
https://programmers.co.kr/learn/courses/30/lessons/12899
Archived
Sep 2, 2021
숫자의 표현
Two-Pointer
Brute Force
https://programmers.co.kr/learn/courses/30/lessons/12924
Archived
Aug 31, 2021
Merge Intervals
Sort
https://leetcode.com/problems/merge-intervals/
Archived
Aug 28, 2021
Roman to Integer
Hash Table
https://leetcode.com/problems/roman-to-integer/
Archived
Aug 26, 2021
LRU Cache
Hash Table
https://leetcode.com/problems/lru-cache/
Archived
Aug 24, 2021
후보키
Hash Table
Combination
https://school.programmers.co.kr/learn/courses/30/lessons/42890
Archived
 

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const readline = require('readline'); (async () => { let rl = readline.createInterface({ input: process.stdin }); const input = [] rl.on('line', (line) => { input.push(line.trim()) if (input.length === 2) { rl.close() } }) .on('close', () => { console.log(solution(input)) process.exit(); }) })(); const solution = (data) => { return }