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[doh6077] WEEK 13 solutions#2315

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TonyKim9401 merged 2 commits intoDaleStudy:mainfrom
doh6077:main
Feb 7, 2026
Merged

[doh6077] WEEK 13 solutions#2315
TonyKim9401 merged 2 commits intoDaleStudy:mainfrom
doh6077:main

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@doh6077 doh6077 commented Feb 4, 2026

๋‹ต์•ˆ ์ œ์ถœ ๋ฌธ์ œ

์ž‘์„ฑ์ž ์ฒดํฌ ๋ฆฌ์ŠคํŠธ

  • Projects์˜ ์˜ค๋ฅธ์ชฝ ๋ฒ„ํŠผ(โ–ผ)์„ ๋ˆŒ๋Ÿฌ ํ™•์žฅํ•œ ๋’ค, Week๋ฅผ ํ˜„์žฌ ์ฃผ์ฐจ๋กœ ์„ค์ •ํ•ด์ฃผ์„ธ์š”.
  • ๋ฌธ์ œ๋ฅผ ๋ชจ๋‘ ํ‘ธ์‹œ๋ฉด ํ”„๋กœ์ ํŠธ์—์„œ Status๋ฅผ In Review๋กœ ์„ค์ •ํ•ด์ฃผ์„ธ์š”.
  • ์ฝ”๋“œ ๊ฒ€ํ† ์ž 1๋ถ„ ์ด์ƒ์œผ๋กœ๋ถ€ํ„ฐ ์Šน์ธ์„ ๋ฐ›์œผ์…จ๋‹ค๋ฉด PR์„ ๋ณ‘ํ•ฉํ•ด์ฃผ์„ธ์š”.

๊ฒ€ํ† ์ž ์ฒดํฌ ๋ฆฌ์ŠคํŠธ

Important

๋ณธ์ธ ๋‹ต์•ˆ ์ œ์ถœ ๋ฟ๋งŒ ์•„๋‹ˆ๋ผ ๋‹ค๋ฅธ ๋ถ„ PR ํ•˜๋‚˜ ์ด์ƒ์„ ๋ฐ˜๋“œ์‹œ ๊ฒ€ํ† ๋ฅผ ํ•ด์ฃผ์…”์•ผ ํ•ฉ๋‹ˆ๋‹ค!

  • ๋ฐ”๋กœ ์ด์ „์— ์˜ฌ๋ผ์˜จ PR์— ๋ณธ์ธ์„ ์ฝ”๋“œ ๋ฆฌ๋ทฐ์–ด๋กœ ์ถ”๊ฐ€ํ•ด์ฃผ์„ธ์š”.
  • ๋ณธ์ธ์ด ๊ฒ€ํ† ํ•ด์•ผํ•˜๋Š” PR์˜ ๋‹ต์•ˆ ์ฝ”๋“œ์— ํ”ผ๋“œ๋ฐฑ์„ ์ฃผ์„ธ์š”.
  • ํ† ์š”์ผ ์ „๊นŒ์ง€ PR์„ ๋ณ‘ํ•ฉํ•  ์ˆ˜ ์žˆ๋„๋ก ์Šน์ธํ•ด์ฃผ์„ธ์š”.

@radiantchoi radiantchoi self-requested a review February 6, 2026 06:19
@TonyKim9401
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@DaleStudy ๋ฆฌ๋ทฐํ•ด์ค˜

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dalestudy bot commented Feb 7, 2026

์ข‹์€ ์‹œ๋„์™€ ๊น”๋”ํ•œ ์ •๋ ฌ ๊ธฐ๋ฐ˜ ์ ‘๊ทผ๋ฒ•์„ ์ฑ„ํƒํ•˜์…จ์–ด์š”! ์‹œ๊ฐ„๋ณต์žก๋„ ๋ถ„์„๋„ ๋ช…ํ™•ํžˆ ๊ธฐ์žฌ๋˜์–ด ์žˆ๊ณ , ์ฝ”๋“œ๋„ ๊ฐ€๋…์„ฑ์ด ์ข‹์•„์„œ ์ดํ•ดํ•˜๊ธฐ ์‰ฝ์Šต๋‹ˆ๋‹ค. ๋‹ค๋งŒ, ๋ช‡ ๊ฐ€์ง€ ๊ฐœ์„ ์ ๊ณผ ์ œ์•ˆ์„ ๋“œ๋ฆฌ์ž๋ฉด:

  1. ํƒ€์ž… ํžŒํŠธ์™€ import ๋ฌธ ์ถ”๊ฐ€: List์™€ Interval ํƒ€์ž…์„ ์‚ฌ์šฉํ–ˆ์ง€๋งŒ, ์ด๋ฅผ ๋ช…ํ™•ํžˆ ํ•˜๊ธฐ ์œ„ํ•ด from typing import List๋ฅผ ์ถ”๊ฐ€ํ•˜๋Š” ๊ฒƒ์ด ์ข‹์Šต๋‹ˆ๋‹ค. ๋˜ํ•œ, Interval์ด ์–ด๋–ค ํƒ€์ž…์ธ์ง€ ๋ช…ํ™•ํžˆ ํ•˜๋Š” ๊ฒƒ๋„ ์ข‹๊ฒ ์–ด์š”.

  2. ์ฝ”๋“œ ๋‚ด ๋ถˆํ•„์š”ํ•œ ์ฃผ์„ ์ œ๊ฑฐ: ๋งˆ์ง€๋ง‰์— ์ฃผ์„ ์ฒ˜๋ฆฌ๋œ ๋ฐ˜๋ณต๋ฌธ์€ ํ˜„์žฌ ์‚ฌ์šฉํ•˜์ง€ ์•Š์œผ๋‹ˆ ์‚ญ์ œํ•˜๊ฑฐ๋‚˜, ํ•„์š”ํ•˜๋ฉด ๊ฐ„๋‹จํžˆ ์ •๋ฆฌํ•˜๋Š” ๊ฒŒ ๊น”๋”ํ•ฉ๋‹ˆ๋‹ค.

  3. ๊ฐ€๋…์„ฑ ํ–ฅ์ƒ: prev ๋ณ€์ˆ˜๋ช… ๋Œ€์‹  prev_end ๊ฐ™์€ ์ด๋ฆ„์œผ๋กœ ๋ฐ”๊พธ๋ฉด ๋” ์ง๊ด€์ ์ž…๋‹ˆ๋‹ค.

  4. ์ถ”๊ฐ€ ๊ณ ๋ ค ์‚ฌํ•ญ: ํ˜„์žฌ ๊ตฌํ˜„์€ ๋งค์šฐ ํšจ์œจ์ ์ด๊ณ  ์ ์ ˆํ•ฉ๋‹ˆ๋‹ค. ๋‹ค๋งŒ, ์ธํ„ฐ๋ฒŒ์ด ์ด๋ฏธ ์ •๋ ฌ๋˜์–ด ์žˆ๋‹ค๊ณ  ๊ฐ€์ •ํ•˜๋Š” ๊ฒฝ์šฐ, ์ •๋ ฌ ๋ถ€๋ถ„์„ ๋ช…์‹œํ•˜๊ฑฐ๋‚˜ ์ฃผ์„์œผ๋กœ ์„ค๋ช…ํ•˜๋ฉด ๋” ์ข‹๊ฒ ์–ด์š”.

  5. ๊ณต๊ฐ„๋ณต์žก๋„: ์ •๋ ฌํ•˜๋Š”๋ฐ O(n log n)์˜ ์‹œ๊ฐ„๋ณต์žก๋„, ์ถ”๊ฐ€๋กœ ๋ณ„๋‹ค๋ฅธ ๊ณต๊ฐ„์„ ์‚ฌ์šฉํ•˜์ง€ ์•Š์œผ๋‹ˆ TC: O(n log n), SC: O(1)๋กœ ๋ช…์‹œํ•˜๋ฉด ๋” ์™„๋ฒฝํ•ฉ๋‹ˆ๋‹ค.

์ด ๊ตฌํ˜„์€ ๊น”๋”ํ•˜๋ฉฐ, ์ถฉ๋ถ„ํžˆ ์ตœ์ ์ž…๋‹ˆ๋‹ค! ์ž‘์€ ์ˆ˜์ •์œผ๋กœ ๋” ๋ช…ํ™•ํ•˜๊ณ  ๊น”๋”ํ•œ ์ฝ”๋“œ๊ฐ€ ๋  ๊ฒƒ ๊ฐ™์•„์š”. ๊ณ„์†ํ•ด์„œ ์ข‹์€ ๋ฐฉํ–ฅ์œผ๋กœ ๋ฐœ์ „ํ•˜์‹œ๊ธธ ์‘์›ํ•ฉ๋‹ˆ๋‹ค!

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13์ฃผ์ฐจ ๋ฌธ์ œ ํ’€์ด ๊ณ ์ƒํ•˜์…จ์Šต๋‹ˆ๋‹ค.
์ •๋ ฌ ํ›„ ์•ž๋’ค ๋น„๊ต ๋ฐฉ์‹์œผ๋กœ ์ž˜ ํ’€์–ด๋‚ด์…จ๋„ค์š”!
์ด์ œ 2์ฃผ๋งŒ ๋” ์ง„ํ–‰ํ•˜์‹œ๋ฉด ์กธ์—…์ด์‹œ๋„ค์š”. ์Šคํ„ฐ๋”” ํ›„๊ธฐ ์–ธ์ œ๋“ ์ง€ ํŽผํ•˜์‹ค๋•Œ ๋‚จ๊ฒจ์ฃผ์‹œ๊ณ  14์ฃผ์ฐจ๋„ ํŒŒ์ดํŒ…์ž…๋‹ˆ๋‹ค!

@TonyKim9401 TonyKim9401 merged commit eb43dc4 into DaleStudy:main Feb 7, 2026
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