Problem Solving

References Name Link HackerRank https://www.hackerrank.com/domains/sql Leetcode https://leetcode.com/problemset/all/ Programmers https://school.programmers.co.kr/learn/challenges Baekjoon https://www.acmicpc.net/ solved.ac https://solved.ac/ Big-O List minyeamer/references/big-o.md Math Reference Number Level Problem Name Subcategory Problem Link Solution Link Programmers 60059 Lv3 🥇 자물쇠와 열쇠 Matrix Link Link Programmers 17687 Lv2 🥈 n진수 게임 Link Link Programmers 12977 Lv1 🥉 소수 만들기 Combination Link Link Baekjoon 1010 Silver 🥈 다리 놓기 Combination Link Link Baekjoon 1463 Silver 🥈 1로 만들기 Link Link Baekjoon 1676 Silver 🥈 팩토리얼 0의 개수 Link Link Baekjoon 2108 Silver 🥈 통계학 Link Link Baekjoon 1049 Silver 🥈 기타줄 Link Link Baekjoon 2475 Bronze 🥉 검증수 Link Link Baekjoon 2609 Bronze 🥉 최대공약수와 최소공배수 Combination Link Link Baekjoon 11050 Bronze 🥉 이항 계수 1 Combination Link Link String Reference Number Level Problem Name Subcategory Problem Link Solution Link Programmers 60057 Lv2 🥈 문자열 압축 Link Link Programmers 72410 Lv1 🥉 신규 아이디 추천 Regular Expression Link Link Baekjoon 22859 Gold 🥇 HTML 파싱 Regular Expression Link Link Baekjoon 15829 Bronze 🥉 Hashing Hashing Link Link Hash Table Reference Number Level Problem Name Subcategory Problem Link Solution Link Programmers 42577 Lv2 🥈 전화번호 목록 Link Link Programmers 42578 Lv2 🥈 위장 Set Link Link Programmers 42888 Lv2 🥈 오픈채팅방 Link Link Programmers 1845 Lv1 🥉 폰켓몬 Link Link Programmers 42576 Lv1 🥉 완주하지 못한 선수 Counter Link Link Programmers 92334 Lv1 🥉 신고 결과 받기 Dictionary Link Link Programmers 81301 Lv1 🥉 숫자 문자열과 영단어 Dictionary Link Link Baekjoon 1620 Silver 🥈 나는야 포켓몬 마스터 이다솜 Dictionary Link Link Baekjoon 1764 Silver 🥈 듣보잡 Set Link Link Baekjoon 1920 Silver 🥈 수 찾기 Set Link Link Baekjoon 10816 Silver 🥈 숫자 카드 2 Counter Link Link Stack/Queue Reference Number Level Problem Name Subcategory Problem Link Solution Link Programmers 17680 Lv2 🥈 캐시 Deque Link Link Baekjoon 5430 Gold 🥇 AC Deque Link Link Baekjoon 1874 Silver 🥈 스택 수열 Stack Link Link Baekjoon 1966 Silver 🥈 프린터 큐 Deque Link Link Baekjoon 2164 Silver 🥈 카드2 Queue Link Link Baekjoon 4949 Silver 🥈 균형잡힌 세상 Stack Link Link Baekjoon 9012 Silver 🥈 괄호 Stack Link Link Baekjoon 10773 Silver 🥈 제로 Stack Link Link Baekjoon 10828 Silver 🥈 스택 Stack Link Link Baekjoon 10845 Silver 🥈 큐 Queue Link Link Baekjoon 10866 Silver 🥈 덱 Deque Link Link Baekjoon 11866 Silver 🥈 요세푸스 문제 0 Stack Link Link Heap Reference Number Level Problem Name Subcategory Problem Link Solution Link Baekjoon 7662 Gold 🥇 이중 우선순위 큐 Guidance Link Link Baekjoon 1927 Silver 🥈 최소 힙 Guidance Link Link Sorting Reference Number Level Problem Name Subcategory Problem Link Solution Link Leetcode 1337 Easy 🥉 The K Weakest Rows...

List Operation Example Big-O Index l[i] O(1) Store l[i] = 0 O(1) Length len(l) O(1) Append l.append(x) O(1) Pop l.pop() O(1) Slice l[a:b] O(b-a) Construction list(x) O(len(x)) Check l1 == l2 O(len(n)) Insert l[a:b] = x O(n) Containment x in l O(n) Copy l.copy() O(n) Remove l.remove() O(n) Count l.count(x) O(n) Index l.index(x) O(n) Pop l.pop(i) O(n) Extreme value min(l)/max(l) O(n) Iteration for v in l: O(n) Reverse l.reverse() O(n) Sort l....