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Algorithm Cook Book

  • ์ฝ”๋”ฉํ…Œ์ŠคํŠธ๋ฅผ ๋Œ€๋น„ํ•˜๊ธฐ ์œ„ํ•œ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์Šคํ„ฐ๋””์ž…๋‹ˆ๋‹ค

์Šคํ„ฐ๋”” ๋ฐฉ์‹

  • 22-06-19๋ถ€ํ„ฐ ์‹œ์ž‘ํ•˜์—ฌ ๊ฒฉ์ฃผ ์ผ์š”์ผ์— ์‹คํ–‰

1) ์ƒ์„ฑํ•œ ๋ฌธ์ œ ๋ชฉ๋ก ํ’€์ด

  • ๋ฌธ์ œ๋ฅผ ํ’€๊ณ  ์ œ์ถœํ•˜๋Š” ๋ถ€๋ถ„๋ณด๋‹ค, ์‹ค์ œ๋กœ ํ’€์–ด๋‚ด๋Š” ์•Œ๊ณ ๋ฆฌ์ฆ˜๊ณผ ์ฝ”๋“œ์— ์กฐ๊ธˆ ๋” ์ง‘์ค‘ํ•˜๊ธฐ
  • ๊ฐ์ž ๋ฌธ์ œ๋Š” ์ƒˆ๋กœ์šด ๋ธŒ๋žœ์น˜์—์„œ commit

2) ํ’€์ด ์™„๋ฃŒํ•œ ๋ฌธ์ œ ๋ชฉ๋ก์„ PR

  • ์Šคํ„ฐ๋””๋‚ ์งœ - ์ž‘์„ฑ์ž - ๋ฌธ์ œ๋ฒˆํ˜ธ ํ˜•์‹์œผ๋กœ ์ƒ์„ฑ
    • 220619 - ์ด์˜์ค€ - 1000 1001
    • ๋‹ค๋ฅธ ์‚ฌ๋žŒ์ด ์ž‘์„ฑํ•œ PR์„ ํ™•์ธํ•˜๊ณ , ์ฝ”๋“œ๋ฆฌ๋ทฐ ์ง„ํ–‰ ํ›„ ์Šน์ธ
  • ๋ฐœํ‘œํ•˜๋Š” ์ฃผ ์ˆ˜์š”์ผ๊นŒ์ง€ PR ์ž‘์„ฑ

3) ์Šคํ„ฐ๋””๋ฅผ ์ง„ํ–‰

  • ์ฝ”๋“œ ๋ฆฌ๋ทฐ ๊ธฐ๋ฐ˜ํ•˜์—ฌ ์ถ”๊ฐ€์ ์ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ณต๋ถ€
  • ์Šคํ„ฐ๋”” ์ง„ํ–‰ ํ›„ ๋‹ค์Œ ๋ฒˆ ์ง„ํ–‰ํ•  ๋ฌธ์ œ ๋ชฉ๋ก ์„ ํƒ, ์ดํ›„ 1๋ฒˆ์œผ๋กœ ๋Œ์•„๊ฐ€์„œ ์ง„ํ–‰

๋ฌธ์ œ ๋ชฉ๋ก

22-09-12

๋ฌธ์ œ ์ถœ์ฒ˜ ๋ฌธ์ œ ๋ฒˆํ˜ธ / ์ด๋ฆ„ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋ถ„๋ฅ˜
๋ฐฑ์ค€ 9202 Boggle trie
๋ฐฑ์ค€ 5670 ํœด๋Œ€ํฐ ์žํŒ trie
๋ฐฑ์ค€ 21279 ๊ด‘๋ถ€ ํ˜ธ์„ segment tree
๋ฐฑ์ค€ 20181 ๊ฟˆํ‹€๊ฟˆํ‹€ ํ˜ธ์„ ์• ๋ฒŒ๋ ˆ - ํšจ์œจ์„ฑ DP
๋ฐฑ์ค€ 15824 ๋„ˆ ๋ด„์—๋Š” ์บก์‚ฌ์ด์‹ ์ด ๋ง›์žˆ๋‹จ๋‹ค combinatorics

22-08-28

๋ฌธ์ œ ์ถœ์ฒ˜ ๋ฌธ์ œ ๋ฒˆํ˜ธ / ์ด๋ฆ„ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋ถ„๋ฅ˜
๋ฐฑ์ค€ 10255 ๊ต์ฐจ์  geometry
๋ฐฑ์ค€ 10000 ์› ์˜์—ญ geometry
๋ฐฑ์ค€ 25315 N์ˆ˜๋งคํ™”๊ฒ€๋ฒ• greedy, geometry
๋ฐฑ์ค€ 2352 ๋ฐ˜๋„์ฒด ์„ค๊ณ„ binary search, LIS
๋ฐฑ์ค€ 2842 ์ง‘๋ฐฐ์› ํ•œ์ƒ๋• binary search

22-08-14

๋ฌธ์ œ ์ถœ์ฒ˜ ๋ฌธ์ œ ๋ฒˆํ˜ธ / ์ด๋ฆ„ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋ถ„๋ฅ˜
๋ฐฑ์ค€ 10999 ๊ตฌ๊ฐ„ ํ•ฉ ๊ตฌํ•˜๊ธฐ 2 segment tree, lazy propagation
๋ฐฑ์ค€ 12844 XOR segment tree, lazy propagation
๋ฐฑ์ค€ 1285 ๋™์ „ ๋’ค์ง‘๊ธฐ greedy
๋ฐฑ์ค€ 1700 ๋ฉ€ํ‹ฐํƒญ ์Šค์ผ€์ค„๋ง greedy

22-07-31

๋ฌธ์ œ ์ถœ์ฒ˜ ๋ฌธ์ œ ๋ฒˆํ˜ธ / ์ด๋ฆ„ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋ถ„๋ฅ˜
๋ฐฑ์ค€ 4354 ๋ฌธ์ž์—ด ์ œ๊ณฑ KMP
๋ฐฑ์ค€ 1958 LCS 3 DP
๋ฐฑ์ค€ 6439 ๊ต์ฐจ CCW
๋ฐฑ์ค€ 11386 ์„ ๋ถ„ ๊ต์ฐจ 1 CCW
๋ฐฑ์ค€ 11758 CCW CCW

22-07-17

๋ฌธ์ œ ์ถœ์ฒ˜ ๋ฌธ์ œ ๋ฒˆํ˜ธ / ์ด๋ฆ„ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋ถ„๋ฅ˜
๋ฐฑ์ค€ 7432 ๋””์Šคํฌ ํŠธ๋ฆฌ trie
๋ฐฑ์ค€ 14725 ๊ฐœ๋ฏธ๊ตด trie
๋ฐฑ์ค€ 1509 ํŒฐ๋ฆฐ๋“œ๋กฌ ๋ถ„ํ•  DP
๋ฐฑ์ค€ 2613 ์ˆซ์ž๊ตฌ์Šฌ DP
๋ฐฑ์ค€ 21942 ๋ถ€ํ’ˆ ๋Œ€์—ฌ์žฅ parsing
๋ฐฑ์ค€ 22860 ํด๋” ์ •๋ฆฌ (small) parsing

22-07-03

๋ฌธ์ œ ์ถœ์ฒ˜ ๋ฌธ์ œ ๋ฒˆํ˜ธ / ์ด๋ฆ„ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋ถ„๋ฅ˜
๋ฐฑ์ค€ 1275 ์ปคํ”ผ์ˆ2 segment tree
๋ฐฑ์ค€ 2104 ๋ถ€๋ถ„๋ฐฐ์—ด ๊ณ ๋ฅด๊ธฐ segment tree
๋ฐฑ์ค€ 14427 ์ˆ˜์—ด๊ณผ ์ฟผ๋ฆฌ 15 segment tree
๋ฐฑ์ค€ 1445 ์ผ์š”์ผ ์•„์นจ์˜ ๋ฐ์ดํŠธ dijkstra
๋ฐฑ์ค€ 9660 ๋Œ ๊ฒŒ์ž„ 6 ๊ฒŒ์ž„ ์ด๋ก 
๋ฐฑ์ค€ 9661 ๋Œ ๊ฒŒ์ž„ 7 ๊ฒŒ์ž„ ์ด๋ก 

22-06-19

๋ฌธ์ œ ์ถœ์ฒ˜ ๋ฌธ์ œ ๋ฒˆํ˜ธ / ์ด๋ฆ„ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋ถ„๋ฅ˜
๋ฐฑ์ค€ 2211 ๋„คํŠธ์›Œํฌ ๋ณต๊ตฌ dijkstra
๋ฐฑ์ค€ 2268 ์ˆ˜๋“ค์˜ ํ•ฉ 7 segment tree