Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

Sign up
Appearance settings

๐Ÿš˜ ์–ด๋”” ํ•œ ๋ฒˆ ๊พธ์ค€ํžˆ ํ’€์–ด๋ณด์ž ์•Œ๊ณ ๋ฆฌ๋“ฌ ๐Ÿš–

Notifications You must be signed in to change notification settings

kuser16/Algorithm-practice

Folders and files

NameName
Last commit message
Last commit date

Latest commit

History

388 Commits

Repository files navigation

Algorithm-practice

GitHub last commit GitHub commit activity GitHub top language

Commit ์ˆ˜ โ‰… ํ‘ผ ๋ฌธ์ œ์˜ ์ˆ˜

๐Ÿ… 300 Commits !! 2021ๅนด03ๆœˆ31ๆ—ฅ
๐Ÿƒโ€โ™€๏ธ Running for 400 commits...

๐Ÿ” ๊ฐ ๋ฌธ์ œ๋ฅผ ํด๋ฆญํ•˜๋ฉด ํ’€์ด ๋ฐ ์ฝ”๋“œ๋ฅผ ๋ณผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
โŒจ๏ธ Ctrl + F ๋ฅผ ํ†ตํ•ด ๋ฌธ์ œ๋ฅผ ์ฐพ์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

Iterations

# โ˜† Problem Note
01 Codility-Lesson1 BinaryGap
02 SWEA-1289 ์›์žฌ์˜ ๋ฉ”๋ชจ๋ฆฌ ๋ณต๊ตฌํ•˜๊ธฐ
03 SWEA-3499 ํผํŽ™ํŠธ ์…”ํ”Œ
04 SWEA-7964 ๋ถ€๋จน์™•๊ตญ์˜ ์ฐจ์› ๊ด€๋ฌธ
05 SWEA-6485 ์‚ผ์„ฑ์‹œ์˜ ๋ฒ„์Šค ๋…ธ์„ 
06 SWEA-5356 ์˜์„์ด์˜ ์„ธ๋กœ๋กœ ๋งํ•ด์š”
07 SWEA-4789 ์„ฑ๊ณต์ ์ธ ๊ณต์—ฐ ๊ธฐํš

Recursion

# โ˜† Problem Note
01 Baekjoon-17478 ์žฌ๊ท€ํ•จ์ˆ˜๊ฐ€ ๋ญ”๊ฐ€์š”?
02 Baekjoon-1914 ํ•˜๋…ธ์ด ํƒ‘

Implementation

# โ˜† Problem Note
01 Baekjoon-21608 ์ƒ์–ด ์ดˆ๋“ฑํ•™๊ต
02 Baekjoon-16463 13์ผ์˜ ๊ธˆ์š”์ผ
03 Baekjoon-2615 ์˜ค๋ชฉ simulation
04 Baekjoon-16719 ZOAC recursion
05 Baekjoon-15787 ๊ธฐ์ฐจ๊ฐ€ ์–ด๋‘ ์„ ํ—ค์น˜๊ณ  ์€ํ•˜์ˆ˜๋ฅผ bitmask
06 Baekjoon-20546 ๊ธฐ์ ์˜ ๋งค๋งค๋ฒ•
07 Baekjoon-4396 ์ง€๋ขฐ ์ฐพ๊ธฐ
08 Programmers ์Šคํƒ€ ์ˆ˜์—ด
09 Baekjoon-12933 ์˜ค๋ฆฌ
10 Baekjoon-10713 ๊ธฐ์ฐจ ์—ฌํ–‰
11 Baekjoon-11005 ์ง„๋ฒ• ๋ณ€ํ™˜ 2
12 Baekjoon-2877 4์™€ 7
13 Programmers ์ž…์‹ค ํ‡ด์‹ค
14 Programmers ๋ณต์„œ ์ •๋ ฌํ•˜๊ธฐ
15 Programmers ๋ชจ์Œ ์‚ฌ์ „

Simulation

# โ˜† Problem Note
01 Baekjoon-1713 ํ›„๋ณด ์ถ”์ฒœํ•˜๊ธฐ
02 Baekjoon-14891 ํ†ฑ๋‹ˆ๋ฐ”ํ€ด
03 Baekjoon-15662 ํ†ฑ๋‹ˆ๋ฐ”ํ€ด (2)
04 Baekjoon-12100 2048 (Easy) ์‚ผ์„ฑ SW ์—ญ๋Ÿ‰ ํ…Œ์ŠคํŠธ ๊ธฐ์ถœ
05 Baekjoon-1244 ์Šค์œ„์น˜ ์ผœ๊ณ  ๋„๊ธฐ
06 SWEA-1873 ์ƒํ˜ธ์˜ ๋ฐฐํ‹€ํ•„๋“œ
07 Baekjoon-2563 ์ƒ‰์ข…์ด
08 Baekjoon-16927 ๋ฐฐ์—ด ๋Œ๋ฆฌ๊ธฐ 2
09 Baekjoon-16935 ๋ฐฐ์—ด ๋Œ๋ฆฌ๊ธฐ 3
10 Baekjoon-14499 ์ฃผ์‚ฌ์œ„ ๊ตด๋ฆฌ๊ธฐ ์‚ผ์„ฑ SW ์—ญ๋Ÿ‰ ํ…Œ์ŠคํŠธ ๊ธฐ์ถœ
11 Baekjoon-14503 ๋กœ๋ด‡ ์ฒญ์†Œ๊ธฐ ์‚ผ์„ฑ SW ์—ญ๋Ÿ‰ ํ…Œ์ŠคํŠธ ๊ธฐ์ถœ
12 Baekjoon-17135 ์บ์Šฌ ๋””ํŽœ์Šค ์‚ผ์„ฑ Aํ˜• ๊ธฐ์ถœ
13 Baekjoon-17281 โšพ ์‚ผ์„ฑ Aํ˜• ๊ธฐ์ถœ
14 Baekjoon-3954 Brainf**k ์ธํ„ฐํ”„๋ฆฌํ„ฐ ์‚ผ์„ฑ Aํ˜• ๊ธฐ์ถœ
15 Baekjoon-10163 ์ƒ‰์ข…์ด
16 Baekjoon-13300 ๋ฐฉ ๋ฐฐ์ •
17 Baekjoon-2477 ์ฐธ์™ธ๋ฐญ
18 JUNGOL-1037 ์˜ค๋ฅ˜๊ต์ •
19 Baekjoon-2931 ๊ฐ€์Šค๊ด€
20 JUNGOL-1205 ์กฐ์ปค
21 SWEA-1767 ํ”„๋กœ์„ธ์„œ ์—ฐ๊ฒฐํ•˜๊ธฐ
22 Baekjoon-2636 ์น˜์ฆˆ
23 Baekjoon-15683 ๊ฐ์‹œ
24 SWEA-4014 ํ™œ์ฃผ๋กœ ๊ฑด์„ค ์‚ผ์„ฑ SW ์—ญ๋Ÿ‰ ํ…Œ์ŠคํŠธ ๊ธฐ์ถœ
25 Baekjoon-17779 ๊ฒŒ๋ฆฌ๋งจ๋”๋ง 2
26 Baekjoon-2564 ๊ฒฝ๋น„์›
27 Baekjoon-17144 ๋ฏธ์„ธ๋จผ์ง€ ์•ˆ๋…•!
28 โญ๏ธ SWEA-5656 ๋ฒฝ๋Œ ๊นจ๊ธฐ
29 Baekjoon-17406 ๋ฐฐ์—ด ๋Œ๋ฆฌ๊ธฐ 4
30 SWEA-9760 Poker Game
31 SWEA-2115 ๋ฒŒ๊ฟ€์ฑ„์ทจ
32 Baekjoon-15686 ์น˜ํ‚จ ๋ฐฐ๋‹ฌ
33 Baekjoon-19236 ์ฒญ์†Œ๋…„ ์ƒ์–ด
34 Baekjoon-2174 ๋กœ๋ด‡ ์‹œ๋ฎฌ๋ ˆ์ด์…˜
35 Baekjoon-1022 ์†Œ์šฉ๋Œ์ด ์˜ˆ์˜๊ฒŒ ์ถœ๋ ฅํ•˜๊ธฐ
36 โญ๏ธ Baekjoon-2571 ์ƒ‰์ข…์ด - 3

String

# โ˜† Problem Note
01 Baekjoon-14425 ๋ฌธ์ž์—ด ์ง‘ํ•ฉ
02 Baekjoon-14426 ์ ‘๋‘์‚ฌ ์ฐพ๊ธฐ
03 Baekjoon-1786 ์ฐพ๊ธฐ KMP
04 Baekjoon-1305 ๊ด‘๊ณ  KMP
05 โญ๏ธ Baekjoon-13505 ๋‘ ์ˆ˜ XOR
06 Baekjoon-9250 ๋ฌธ์ž์—ด ์ง‘ํ•ฉ ํŒ๋ณ„ Aho-Corasick
07 Baekjoon-10256 ๋Œ์—ฐ๋ณ€์ด Aho-Corasick
08 Baekjoon-15740 A+B - 9
09 Baekjoon-9093 ๋‹จ์–ด ๋’ค์ง‘๊ธฐ
10 Baekjoon-5052 ์ „ํ™”๋ฒˆํ˜ธ ๋ชฉ๋ก
11 Baekjoon-17413 ๋‹จ์–ด ๋’ค์ง‘๊ธฐ 2
12 Baekjoon-9342 ์—ผ์ƒ‰์ฒด
13 Baekjoon-6503 ๋ง๊ฐ€์ง„ ํ‚ค๋ณด๋“œ 2-pointer
14 Baekjoon-9252 LCS 2 LCS

Brute Force

# โ˜† Problem Note
01 Programmers ์†Œ์ˆ˜ ์ฐพ๊ธฐ
02 Programmers ์นดํŽซ
03 Baekjoon-2961 ๋„์˜์ด๊ฐ€ ๋งŒ๋“  ๋ง›์žˆ๋Š” ์Œ์‹
04 Baekjoon-3040 ๋ฐฑ์„ค ๊ณต์ฃผ์™€ ์ผ๊ณฑ ๋‚œ์Ÿ์ด
05 Baekjoon-14889 ์Šคํƒ€ํŠธ์™€ ๋งํฌ ์‚ผ์„ฑ SW ์—ญ๋Ÿ‰ ํ…Œ์ŠคํŠธ ๊ธฐ์ถœ
06 Baekjoon-16637 ๊ด„ํ˜ธ ์ถ”๊ฐ€ํ•˜๊ธฐ ์‚ผ์„ฑ Aํ˜• ๊ธฐ์ถœ
07 SWEA-1247 ์ตœ์  ๊ฒฝ๋กœ
08 SWEA-4012 ์š”๋ฆฌ์‚ฌ
09 โญ๏ธ SWEA-3234 ์ค€ํ™˜์ด์˜ ์–‘ํŒ”์ €์šธ
10 โญ๏ธ Baekjoon-17136 ์ƒ‰์ข…์ด ๋ถ™์ด๊ธฐ ์‚ผ์„ฑ Aํ˜• ๊ธฐ์ถœ
11 Baekjoon-2468 ์•ˆ์ „ ์˜์—ญ
12 Baekjoon-17471 ๊ฒŒ๋ฆฌ๋งจ๋”๋ง ์‚ผ์„ฑ Aํ˜• ๊ธฐ์ถœ

DFS & BFS

# โ˜† Problem Note
01 Baekjoon-1260 DFS์™€ BFS
02 Baekjoon-2573 ๋น™์‚ฐ

DFS

# โ˜† Problem Note
01 โญ๏ธ Baekjoon-1062 ๊ฐ€๋ฅด์นจ bitmask
02 Baekjoon-1759 ์•”ํ˜ธ ๋งŒ๋“ค๊ธฐ Combination
03 โญ๏ธ Baekjoon-1103 ๊ฒŒ์ž„ DP
04 Baekjoon-14888 ์—ฐ์‚ฐ์ž ๋ผ์›Œ๋„ฃ๊ธฐ
05 Baekjoon-15658 ์—ฐ์‚ฐ์ž ๋ผ์›Œ๋„ฃ๊ธฐ (2)
06 Baekjoon-14501 ํ‡ด์‚ฌ
07 Baekjoon-10971 ์™ธํŒ์› ์ˆœํšŒ 2
08 Baekjoon-14500 ํ…ŒํŠธ๋กœ๋ฏธ๋…ธ
09 Baekjoon-2667 ๋‹จ์ง€๋ฒˆํ˜ธ๋ถ™์ด๊ธฐ
10 Baekjoon-4963 ์„ฌ์˜ ๊ฐœ์ˆ˜
11 Baekjoon-13023 ABCDE
12 SWEA-5215 ํ–„๋ฒ„๊ฑฐ ๋‹ค์ด์–ดํŠธ
13 Baekjoon-3109 ๋นต์ง‘
14 Baekjoon-1987 ์•ŒํŒŒ๋ฒณ
15 Baekjoon-17070 ํŒŒ์ดํ”„ ์˜ฎ๊ธฐ๊ธฐ 1 ์‚ผ์„ฑ Aํ˜• ๊ธฐ์ถœ
16 SWEA-2105 ๋””์ €ํŠธ ์นดํŽ˜
17 Baekjoon-1937 ์š•์‹ฌ์Ÿ์ด ํŒ๋‹ค DFS + DP
18 SWEA-1949 ๋“ฑ์‚ฐ๋กœ ์กฐ์„ฑ
19 Baekjoon-1520 ๋‚ด๋ฆฌ๋ง‰ ๊ธธ DFS + DP
20 Programmers N-Queen Backtracking
21 Baekjoon-20164 ํ™€์ˆ˜ ํ™€๋ฆญ ํ˜ธ์„

BFS

# โ˜† Problem Note
01 Baekjoon-3055 ํƒˆ์ถœ
02 Baekjoon-1039 ๊ตํ™˜
03 Baekjoon-13460 ๊ตฌ์Šฌ ํƒˆ์ถœ 2 ์‚ผ์„ฑ SW ์—ญ๋Ÿ‰ ํ…Œ์ŠคํŠธ ๊ธฐ์ถœ
04 Baekjoon-2178 ๋ฏธ๋กœ ํƒ์ƒ‰
05 Baekjoon-16236 ์•„๊ธฐ ์ƒ์–ด ์‚ผ์„ฑ SW ์—ญ๋Ÿ‰ ํ…Œ์ŠคํŠธ ๊ธฐ์ถœ
06 Baekjoon-14502 ์—ฐ๊ตฌ์†Œ ์‚ผ์„ฑ SW ์—ญ๋Ÿ‰ ํ…Œ์ŠคํŠธ ๊ธฐ์ถœ
07 Baekjoon-1525 ํผ์ฆ
08 Baekjoon-7576 ํ† ๋งˆํ† 
09 Baekjoon-1697 ์ˆจ๋ฐ”๊ผญ์งˆ
10 Baekjoon-14226 ์ด๋ชจํ‹ฐ์ฝ˜
11 Baekjoon-13549 ์ˆจ๋ฐ”๊ผญ์งˆ 3
12 โญ๏ธ Baekjoon-20304 ๋น„๋ฐ€๋ฒˆํ˜ธ ์ œ์ž‘
13 Baekjoon-1938 ํ†ต๋‚˜๋ฌด ์˜ฎ๊ธฐ๊ธฐ
14 Baekjoon-1600 ๋ง์ด ๋˜๊ณ ํ”ˆ ์›์ˆญ์ด
15 SWEA-1953 ํƒˆ์ฃผ๋ฒ” ๊ฒ€๊ฑฐ
16 SWEA-10966 ๋ฌผ๋†€์ด๋ฅผ ๊ฐ€์ž
17 SWEA-1238 Contact
18 Baekjoon-2206 ๋ฒฝ ๋ถ€์ˆ˜๊ณ  ์ด๋™ํ•˜๊ธฐ
19 โญ๏ธ SWEA-1249 ๋ณด๊ธ‰๋กœ
20 Baekjoon-1194 ๋‹ฌ์ด ์ฐจ์˜ค๋ฅธ๋‹ค, ๊ฐ€์ž.
21 Baekjoon-1743 ์Œ์‹๋ฌผ ํ”ผํ•˜๊ธฐ
22 โญ๏ธ Baekjoon-1939 ์ค‘๋Ÿ‰์ œํ•œ binary search + bfs

Divide and Conquer

# โ˜† Problem Note
01 Baekjoon-1074 Z
02 Baekjoon-1992 ์ฟผ๋“œํŠธ๋ฆฌ
03 Baekjoon-10830 ํ–‰๋ ฌ ์ œ๊ณฑ

Greedy Algorithm

# โ˜† Problem Note
01 Baekjoon-2839 ์„คํƒ• ๋ฐฐ๋‹ฌ
02 JUNGOL-1828 ๋ƒ‰์žฅ๊ณ 
03 Baekjoon-1343 ํด๋ฆฌ์˜ค๋ฏธ๋…ธ
04 Baekjoon-1092 ๋ฐฐ
05 Baekjoon-2847 ๊ฒŒ์ž„์„ ๋งŒ๋“  ๋™์ค€์ด
06 Baekjoon-11047 ๋™์ „ 0

Data Structure

Array

# โ˜† Problem Note
01 Codility-Lesson2 CyclicRotation
02 Codility-Lesson2 OddOccurrencesInArray
03 Codility-Lesson4 FrogRiverOne
04 Codility-Lesson4 PermCheck
05 Codility-Lesson4 MissingInteger
06 Codility-Lesson4 MaxCounters
07 SWEA-1208 Flatten
08 SWEA-1210 Ladder1
09 SWEA-1954 ๋‹ฌํŒฝ์ด ์ˆซ์ž
10 SWEA-2805 ๋†์ž‘๋ฌผ ์ˆ˜ํ™•ํ•˜๊ธฐ
11 SWEA-2001 ํŒŒ๋ฆฌ ํ‡ด์น˜
12 Baekjoon-20299 3๋Œ€ ์ธก์ •

List

# โ˜† Problem Note
01 Baekjoon-18115 ์นด๋“œ ๋†“๊ธฐ

Stack

# โ˜† Problem Note
01 Baekjoon-10828 ์Šคํƒ
02 Baekjoon-2504 ๊ด„ํ˜ธ์˜ ๊ฐ’
03 Baekjoon-3425 ๊ณ ์Šคํƒ
04 Baekjoon-2493 ํƒ‘
05 โญ๏ธ Baekjoon-2867 ์ˆ˜์—ด์˜ ๊ฐ’
06 SWEA-1218 ๊ด„ํ˜ธ ์ง์ง“๊ธฐ
07 SWEA-1223 ๊ณ„์‚ฐ๊ธฐ2
08 Programmers ์ฃผ์‹๊ฐ€๊ฒฉ
09 Baekjoon-17298 ์˜คํฐ์ˆ˜
10 Baekjoon-2800 ๊ด„ํ˜ธ ์ œ๊ฑฐ
11 Baekjoon-1918 ํ›„์œ„ ํ‘œ๊ธฐ์‹
12 Baekjoon-1863 ์Šค์นด์ด๋ผ์ธ ์‰ฌ์šด๊ฑฐ
13 Baekjoon-10799 ์‡ ๋ง‰๋Œ€๊ธฐ

Queue

# โ˜† Problem Note
01 Baekjoon-10845 ํ
02 Baekjoon-3190 ๋ฑ€ Deque / ์‚ผ์„ฑ SW ์—ญ๋Ÿ‰ ํ…Œ์ŠคํŠธ ๊ธฐ์ถœ
03 SWEA-1225 ์•”ํ˜ธ์ƒ์„ฑ๊ธฐ
04 Baekjoon-1158 ์š”์„ธํ‘ธ์Šค ๋ฌธ์ œ
05 Programmers ๋‹ค๋ฆฌ๋ฅผ ์ง€๋‚˜๋Š” ํŠธ๋Ÿญ
06 Programmers ๊ธฐ๋Šฅ๊ฐœ๋ฐœ
07 Programmers ํ”„๋ฆฐํ„ฐ
08 Baekjoon-18258 ํ 2
09 Baekjoon-1966 ํ”„๋ฆฐํ„ฐ ํ

Tree

# โ˜† Problem Note
01 Baekjoon-1991 ํŠธ๋ฆฌ ์ˆœํšŒ
02 Baekjoon-1068 ํŠธ๋ฆฌ
03 SWEA-1233 ์‚ฌ์น™์—ฐ์‚ฐ ์œ ํšจ์„ฑ ๊ฒ€์‚ฌ
04 โญ๏ธ Baekjoon-1167 ํŠธ๋ฆฌ์˜ ์ง€๋ฆ„
05 โญ๏ธ Baekjoon-2263 ํŠธ๋ฆฌ์˜ ์ˆœํšŒ
06 Baekjoon-11725 ํŠธ๋ฆฌ์˜ ๋ถ€๋ชจ ์ฐพ๊ธฐ

Heap

# โ˜† Problem Note
01 โญ๏ธ Baekjoon-1202 ๋ณด์„ ๋„๋‘‘
02 Baekjoon-1927 ์ตœ์†Œ ํž™
03 Baekjoon-11279 ์ตœ๋Œ€ ํž™
04 Programmers ๋” ๋งต๊ฒŒ
05 Programmers ๋””์Šคํฌ ์ปจํŠธ๋กค๋Ÿฌ Priority Queue
06 Programmers ์ด์ค‘์šฐ์„ ์ˆœ์œ„ํ Priority Queue
07 Baekjoon-7662 ์ด์ค‘ ์šฐ์„ ์ˆœ์œ„ ํ java.util.TreeMap
08 Baekjoon-11286 ์ ˆ๋Œ“๊ฐ’ ํž™

Indexed Tree (Segment Tree)

# โ˜† Problem Note
01 Indexed Tree Example
02 โญ๏ธ Baekjoon-2042 ๊ตฌ๊ฐ„ ํ•ฉ ๊ตฌํ•˜๊ธฐ
03 โญ๏ธ Baekjoon-2243 ์‚ฌํƒ•์ƒ์ž
04 Baekjoon-5676 ์Œ์ฃผ ์ฝ”๋”ฉ
05 Baekjoon-1275 ์ปคํ”ผ์ˆ2
06 Baekjoon-2268 ์ˆ˜๋“ค์˜ ํ•ฉ
07 Baekjoon-12837 ๊ฐ€๊ณ„๋ถ€ (Hard)
08 Baekjoon-11505 ๊ตฌ๊ฐ„ ๊ณฑ ๊ตฌํ•˜๊ธฐ
09 Baekjoon-2357 ์ตœ์†Ÿ๊ฐ’๊ณผ ์ตœ๋Œ“๊ฐ’
10 Baekjoon-10868 ์ตœ์†Ÿ๊ฐ’

Trie

# โ˜† Problem Note
01 Trie Example
02 โญ๏ธ Baekjoon-9202 Boggle
03 ๏ธ Baekjoon-5670 ํœด๋Œ€ํฐ ์žํŒ

Hash

# โ˜† Problem Note
01 Programmers ๋ฒ ์ŠคํŠธ์•จ๋ฒ”
02 Baekjoon-1764 ๋“ฃ๋ณด์žก
03 Programmers ์™„์ฃผํ•˜์ง€ ๋ชปํ•œ ์„ ์ˆ˜
04 Programmers ์ „ํ™”๋ฒˆํ˜ธ ๋ชฉ๋ก
05 Programmers ์œ„์žฅ

Graph

# โ˜† Problem Note
01 Baekjoon-11724 ์—ฐ๊ฒฐ ์š”์†Œ์˜ ๊ฐœ์ˆ˜
02 Baekjoon-1707 ์ด๋ถ„ ๊ทธ๋ž˜ํ”„
03 Baekjoon-1717 ์ง‘ํ•ฉ์˜ ํ‘œํ˜„ Disjoint Set
04 Baekjoon-2252 ์ค„ ์„ธ์šฐ๊ธฐ ์œ„์ƒ์ •๋ ฌ
05 Programmers ๋„คํŠธ์›Œํฌ union-find
06 SWEA-3289 ์„œ๋กœ์†Œ ์ง‘ํ•ฉ union-find
07 JUNGOL-1863 ์ข…๊ต union-find : union-by-rank
08 Baekjoon-21276 ๊ณ„๋ณด ๋ณต์›๊ฐ€ ํ˜ธ์„ ์œ„์ƒ์ •๋ ฌ
09 โญ๏ธ Baekjoon-2458 ํ‚ค ์ˆœ์„œ
10 Programmers ๊ฐ€์žฅ ๋จผ ๋…ธ๋“œ
11 Programmers ์ˆœ์œ„
12 Baekjoon-4195 ์นœ๊ตฌ ๋„คํŠธ์›Œํฌ union-find

Minimum Spanning Tree (MST)

# โ˜† Problem Note
01 Baekjoon-4386 ๋ณ„์ž๋ฆฌ ๋งŒ๋“ค๊ธฐ Kruskal
02 Baekjoon-16562 ์นœ๊ตฌ๋น„ Kruskal
03 Baekjoon-14621 ๋‚˜๋งŒ ์•ˆ๋˜๋Š” ์—ฐ์• 
04 Baekjoon-16398 ํ–‰์„ฑ ์—ฐ๊ฒฐ
05 Baekjoon-1944 ๋ณต์ œ ๋กœ๋ด‡
06 Baekjoon-1197 ์ตœ์†Œ ์ŠคํŒจ๋‹ ํŠธ๋ฆฌ
07 SWEA-1251 ํ•˜๋‚˜๋กœ Prim
08 Baekjoon-17472 ๋‹ค๋ฆฌ ๋งŒ๋“ค๊ธฐ 2 ์‚ผ์„ฑ Aํ˜• ๊ธฐ์ถœ

์ตœ๋‹จ ๊ฒฝ๋กœ

# โ˜† Problem Note
01 Baekjoon-1753 ์ตœ๋‹จ๊ฒฝ๋กœ Dijkstra
02 Baekjoon-11657 ํƒ€์ž„๋จธ์‹  Bellman-Ford
03 Baekjoon-11404 ํ”Œ๋กœ์ด๋“œ Floyd-Warshall
04 Baekjoon-1854 K๋ฒˆ์งธ ์ตœ๋‹จ๊ฒฝ๋กœ ์ฐพ๊ธฐ Dijkstra
05 Baekjoon-3860 ํ• ๋กœ์œˆ ๋ฌ˜์ง€ Bellman-Ford
06 โญ๏ธ Baekjoon-5719 ๊ฑฐ์˜ ์ตœ๋‹จ ๊ฒฝ๋กœ Dijkstra
07 Baekjoon-9205 ๋งฅ์ฃผ ๋งˆ์‹œ๋ฉด์„œ ๊ฑธ์–ด๊ฐ€๊ธฐ Floyd-Warshall
08 SWEA-1263 ์‚ฌ๋žŒ ๋„คํŠธ์›Œํฌ2 Floyd-Warshall
09 Baekjoon-21278 ํ˜ธ์„์ด ๋‘ ๋งˆ๋ฆฌ ์น˜ํ‚จ Floyd-Warshall
10 โญ๏ธ Baekjoon-1738 ๊ณจ๋ชฉ๊ธธ Bellman-Ford

Math

# โ˜† Problem Note
01 Baekjoon-13458 ์‹œํ—˜ ๊ฐ๋…
02 Baekjoon-21275 ํฐ ํ˜ธ์„๋งŒ ์™„์ „ํƒ์ƒ‰
03 SWEA-8382 ๋ฐฉํ–ฅ ์ „ํ™˜
04 Baekjoon-2108 ํ†ต๊ณ„ํ•™

Number Theory

GCD

# โ˜† Problem Note
01 GCD Example
02 Baekjoon-14476 ์ตœ๋Œ€๊ณต์•ฝ์ˆ˜ ํ•˜๋‚˜ ๋นผ๊ธฐ ๋ˆ„์ ํ•ฉ
03 Baekjoon-2609 ์ตœ๋Œ€๊ณต์•ฝ์ˆ˜์™€ ์ตœ์†Œ๊ณต๋ฐฐ์ˆ˜
04 Baekjoon-1735 ๋ถ„์ˆ˜ ํ•ฉ

Prime Number

# โ˜† Problem Note
01 Baekjoon-1978 ์†Œ์ˆ˜ ์ฐพ๊ธฐ
02 Baekjoon-6588 ๊ณจ๋“œ๋ฐ”ํ์˜ ์ถ”์ธก
03 SWEA-4698 ํ…Œ๋„ค์Šค์˜ ํŠน๋ณ„ํ•œ ์†Œ์ˆ˜
04 Baekjoon-1644 ์†Œ์ˆ˜์˜ ์—ฐ์†ํ•ฉ 2-pointer

Combinatorics

Combination

# โ˜† Problem Note
01 Baekjoon-11050 ์ดํ•ญ ๊ณ„์ˆ˜ 1
02 Baekjoon-11051 ์ดํ•ญ ๊ณ„์ˆ˜ 2 DP
03 Baekjoon-1010 ๋‹ค๋ฆฌ ๋†“๊ธฐ DP
04 โญ๏ธ Baekjoon-1256 ์‚ฌ์ „
05 SWEA-9229 ํ•œ๋นˆ์ด์™€ Spot Mart
06 Baekjoon-2798 ๋ธ”๋ž™์žญ
07 Baekjoon-1007 ๋ฒกํ„ฐ ๋งค์นญ

Permutation

# โ˜† Problem Note
01 Baekjoon-5568 ์นด๋“œ ๋†“๊ธฐ
02 Baekjoon-1722 ์ˆœ์—ด์˜ ์ˆœ์„œ
03 Baekjoon-10972 ๋‹ค์Œ ์ˆœ์—ด
04 Baekjoon-10973 ์ด์ „ ์ˆœ์—ด
05 Baekjoon-10974 ๋ชจ๋“  ์ˆœ์—ด
06 Baekjoon-9742 ์ˆœ์—ด
07 SWEA-6808 ๊ทœ์˜์ด์™€ ์ธ์˜์ด์˜ ์นด๋“œ๊ฒŒ์ž„

Probability

# โ˜† Problem Note
01 Baekjoon-13251 ์กฐ์•ฝ๋Œ ๊บผ๋‚ด๊ธฐ

Sort

# โ˜† Problem Note
01 Programmers K๋ฒˆ์งธ์ˆ˜
02 Programmers ๊ฐ€์žฅ ํฐ ์ˆ˜
03 Programmers H-Index
04 Baekjoon-2750 ์ˆ˜ ์ •๋ ฌํ•˜๊ธฐ Selection Sort
05 Baekjoon-2751 ์ˆ˜ ์ •๋ ฌํ•˜๊ธฐ 2 Merge Sort
06 Baekjoon-10989 ์ˆ˜ ์ •๋ ฌํ•˜๊ธฐ 3 Counting Sort
06 Baekjoon-2751 ์ˆ˜ ์ •๋ ฌํ•˜๊ธฐ 4
07 Baekjoon-15688 ์ˆ˜ ์ •๋ ฌํ•˜๊ธฐ 5

Dynamic Programming

# โ˜† Problem Note
01 Baekjoon-1932 ์ •์ˆ˜ ์‚ผ๊ฐํ˜•
02 Baekjoon-11659 ๊ตฌ๊ฐ„ ํ•ฉ ๊ตฌํ•˜๊ธฐ 4 ๋ˆ„์ ํ•ฉ
03 Baekjoon-11660 ๊ตฌ๊ฐ„ ํ•ฉ ๊ตฌํ•˜๊ธฐ 5 ๋ˆ„์ ํ•ฉ
04 Baekjoon-11052 ์นด๋“œ ๊ตฌ๋งคํ•˜๊ธฐ
05 Baekjoon-16194 ์นด๋“œ ๊ตฌ๋งคํ•˜๊ธฐ 2
06 Baekjoon-11057 ์˜ค๋ฅด๋ง‰ ์ˆ˜
07 Baekjoon-2579 ๊ณ„๋‹จ ์˜ค๋ฅด๊ธฐ
08 Baekjoon-11048 ์ด๋™ํ•˜๊ธฐ
09 โญ๏ธ Baekjoon-11066 ํŒŒ์ผ ํ•ฉ์น˜๊ธฐ
10 Baekjoon-1463 1๋กœ ๋งŒ๋“ค๊ธฐ
11 Baekjoon-11726 ร—ใฐใคn ํƒ€์ผ๋ง
12 Baekjoon-11727 ร—ใฐใคn ํƒ€์ผ๋ง 2
13 Baekjoon-9095 1, 2, 3 ๋”ํ•˜๊ธฐ
14 Baekjoon-15988 1, 2, 3 ๋”ํ•˜๊ธฐ 3
15 Baekjoon-15990 1, 2, 3 ๋”ํ•˜๊ธฐ 5
16 Baekjoon-10844 ์‰ฌ์šด ๊ณ„๋‹จ ์ˆ˜
17 Baekjoon-2193 ์ด์นœ์ˆ˜
18 Baekjoon-9465 ์Šคํ‹ฐ์ปค
19 Baekjoon-2156 ํฌ๋„์ฃผ ์‹œ์‹
20 Baekjoon-11053 ๊ฐ€์žฅ ๊ธด ์ฆ๊ฐ€ํ•˜๋Š” ๋ถ€๋ถ„ ์ˆ˜์—ด
21 Baekjoon-14002 ๊ฐ€์žฅ ๊ธด ์ฆ๊ฐ€ํ•˜๋Š” ๋ถ€๋ถ„ ์ˆ˜์—ด 4
22 Baekjoon-11055 ๊ฐ€์žฅ ํฐ ์ฆ๊ฐ€ ๋ถ€๋ถ„ ์ˆ˜์—ด
23 Baekjoon-11722 ๊ฐ€์žฅ ๊ธด ๊ฐ์†Œํ•˜๋Š” ๋ถ€๋ถ„ ์ˆ˜์—ด
24 Baekjoon-11054 ๊ฐ€์žฅ ๊ธด ๋ฐ”์ดํ† ๋‹‰ ๋ถ€๋ถ„ ์ˆ˜์—ด
25 Baekjoon-1912 ์—ฐ์†ํ•ฉ
26 Baekjoon-13398 ์—ฐ์†ํ•ฉ 2
27 Baekjoon-1699 ์ œ๊ณฑ์ˆ˜์˜ ํ•ฉ
28 Baekjoon-2225 ํ•ฉ๋ถ„ํ•ด
29 Baekjoon-1003 ํ”ผ๋ณด๋‚˜์น˜ ํ•จ์ˆ˜
30 SWEA-1861 ์ •์‚ฌ๊ฐํ˜• ๋ฐฉ
31 SWEA-1952 ์ˆ˜์˜์žฅ
32 JUNGOL-1681 ํ•ด๋ฐ€ํ„ด ์ˆœํ™˜ํšŒ๋กœ TSP
33 Baekjoon-2098 ์™ธํŒ์› ์ˆœํšŒ TSP
34 Baekjoon-12852 1๋กœ ๋งŒ๋“ค๊ธฐ 2
35 Baekjoon-1149 RGB๊ฑฐ๋ฆฌ
36 Programmers N์œผ๋กœ ํ‘œํ˜„
37 โญ๏ธ Baekjoon-2629 ์–‘ํŒ”์ €์šธ
38 Baekjoon-1328 ๊ณ ์ธต ๋นŒ๋”ฉ
39 Baekjoon-2294 ๋™์ „ 2
40 Baekjoon-12865 ํ‰๋ฒ”ํ•œ ๋ฐฐ๋‚ญ ๋ฐฐ๋‚ญ๋ฌธ์ œ
41 โญ๏ธ Baekjoon-2533 ์‚ฌํšŒ๋ง ์„œ๋น„์Šค(SNS)
42 โญ๏ธ Baekjoon-15678 ์—ฐ์„ธ์›Œํ„ฐํŒŒํฌ DP + Deque
43 Baekjoon-17845 ์ˆ˜๊ฐ• ๊ณผ๋ชฉ ๋ฐฐ๋‚ญ๋ฌธ์ œ

Time Complexity

# โ˜† Problem Note
01 Baekjoon-2003 ์ˆ˜๋“ค์˜ ํ•ฉ 2 2-pointer
02 โญ๏ธ Baekjoon-2805 ๋‚˜๋ฌด ์ž๋ฅด๊ธฐ Parametric Search
03 โญ๏ธ Baekjoon-2143 ๋‘ ๋ฐฐ์—ด์˜ ํ•ฉ Lower Bound & Upper Bound
04 Baekjoon-2748 ํ”ผ๋ณด๋‚˜์น˜ ์ˆ˜ 2 DP
05 Baekjoon-1806 ๋ถ€๋ถ„ํ•ฉ 2-pointer
06 Codility-Lesson3 FrogJmp
07 Codility-Lesson3 PermMissingElem
08 Codility-Lesson3 TapeEquilibrium
09 Baekjoon-12015 ๊ฐ€์žฅ ๊ธด ์ฆ๊ฐ€ํ•˜๋Š” ๋ถ€๋ถ„ ์ˆ˜์—ด 2 LIS
10 Baekjoon-12738 ๊ฐ€์žฅ ๊ธด ์ฆ๊ฐ€ํ•˜๋Š” ๋ถ€๋ถ„ ์ˆ˜์—ด 3 LIS
11 Baekjoon-14003 ๊ฐ€์žฅ ๊ธด ์ฆ๊ฐ€ํ•˜๋Š” ๋ถ€๋ถ„ ์ˆ˜์—ด 5 LIS
12 Baekjoon-15961 ํšŒ์ „ ์ดˆ๋ฐฅ 2-pointer
13 SWEA-3307 ์ตœ์žฅ ์ฆ๊ฐ€ ๋ถ€๋ถ„ ์ˆ˜์—ด LIS
14 Baekjoon-16566 ์นด๋“œ ๊ฒŒ์ž„ Upper Bound
15 Programmers ์ž…๊ตญ์‹ฌ์‚ฌ Binary Search

Series

N๊ณผ M (1-12)

# โ˜† Problem Note
01 Baekjoon-15649 N๊ณผ M (1)
02 Baekjoon-15650 N๊ณผ M (2)
03 Baekjoon-15651 N๊ณผ M (3) ์‹œ๊ฐ„์ดˆ๊ณผ์ด์Šˆ : BufferedWriter
04 Baekjoon-15652 N๊ณผ M (4)
05 Baekjoon-15654 N๊ณผ M (5)
06 Baekjoon-15655 N๊ณผ M (6)
07 Baekjoon-15656 N๊ณผ M (7)
08 Baekjoon-15657 N๊ณผ M (8)
09 Baekjoon-15663 N๊ณผ M (9)
10 Baekjoon-15664 N๊ณผ M (10)
11 Baekjoon-15665 N๊ณผ M (11)
12 Baekjoon-15666 N๊ณผ M (12)

์ˆ˜์—ด๊ณผ ์ฟผ๋ฆฌ 0-39

# โ˜† Problem Note
01 Baekjoon-13537 ์ˆ˜์—ด๊ณผ ์ฟผ๋ฆฌ 1 ๋จธ์ง€ ์†ŒํŠธ ํŠธ๋ฆฌ
02 Baekjoon-13544 ์ˆ˜์—ด๊ณผ ์ฟผ๋ฆฌ 3 ๋จธ์ง€ ์†ŒํŠธ ํŠธ๋ฆฌ

2021 KAKAO BLIND RECRUITMENT

# โ˜† Problem Note
01 ์‹ ๊ทœ ์•„์ด๋”” ์ถ”์ฒœ
02 ๋ฉ”๋‰ด ๋ฆฌ๋‰ด์–ผ
03 ์ˆœ์œ„ ๊ฒ€์ƒ‰
04 ํ•ฉ์Šน ํƒ์‹œ ์š”๊ธˆ

2020 KAKAO BLIND RECRUITMENT

# โ˜† Problem Note
01 ๋ฌธ์ž์—ด ์••์ถ•
02 ๊ด„ํ˜ธ ๋ณ€ํ™˜
03 ์ž๋ฌผ์‡ ์™€ ์—ด์‡ 
04 ๊ฐ€์‚ฌ ๊ฒ€์ƒ‰
05 ๊ธฐ๋‘ฅ๊ณผ ๋ณด ์„ค์น˜
06 ์™ธ๋ฒฝ ์ ๊ฒ€
07 ๋ธ”๋ก ์ด๋™ํ•˜๊ธฐ

2019 KAKAO BLIND RECRUITMENT

# โ˜† Problem Note
01 ์˜คํ”ˆ์ฑ„ํŒ…๋ฐฉ
02 ์‹คํŒจ์œจ
03 ํ›„๋ณดํ‚ค
06 ๋งค์นญ ์ ์ˆ˜

2020 ์นด์นด์˜ค ์ธํ„ด์‹ญ

# โ˜† Problem Note
01 ํ‚คํŒจ๋“œ ๋ˆ„๋ฅด๊ธฐ
02 ์ˆ˜์‹ ์ตœ๋Œ€ํ™” ๊ตฌํ˜„
03 ๋ณด์„ ์‡ผํ•‘ 2-pointer
04 ๊ฒฝ์ฃผ๋กœ ๊ฑด์„ค dfs + dp
05 โญ๏ธ ๋™๊ตด ํƒํ—˜ graph (cycle check : stack overflow)

About

๐Ÿš˜ ์–ด๋”” ํ•œ ๋ฒˆ ๊พธ์ค€ํžˆ ํ’€์–ด๋ณด์ž ์•Œ๊ณ ๋ฆฌ๋“ฌ ๐Ÿš–

Resources

Stars

Watchers

Forks

Releases

No releases published

Packages

No packages published

Languages

  • Java 99.7%
  • JavaScript 0.3%

AltStyle ใซใ‚ˆใฃใฆๅค‰ๆ›ใ•ใ‚ŒใŸใƒšใƒผใ‚ธ (->ใ‚ชใƒชใ‚ธใƒŠใƒซ) /