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@parkhojeong

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๋‹ต์•ˆ ์ œ์ถœ ๋ฌธ์ œ

  • ๋ฌธ์ œ 1
  • ๋ฌธ์ œ 2
  • ๋ฌธ์ œ 3

์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”.

@dalestudy-dev-bot

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โš ๏ธ Week ์„ค์ •์ด ๋ˆ„๋ฝ๋˜์—ˆ์Šต๋‹ˆ๋‹ค

ํ”„๋กœ์ ํŠธ์—์„œ Week๋ฅผ ์„ค์ •ํ•ด์ฃผ์„ธ์š”!

์„ค์ • ๋ฐฉ๋ฒ•

  1. PR ์šฐ์ธก์˜ Projects ์„น์…˜์—์„œ ๋ฆฌํŠธ์ฝ”๋“œ ์Šคํ„ฐ๋”” ์˜† ๋“œ๋กญ๋‹ค์šด(โ–ผ) ํด๋ฆญ
  2. ํ˜„์žฌ ์ฃผ์ฐจ๋ฅผ ์„ ํƒํ•ด์ฃผ์„ธ์š” (์˜ˆ: Week 14(current) ๋˜๋Š” Week 14)

๐Ÿ“š ์ž์„ธํ•œ ๊ฐ€์ด๋“œ ๋ณด๊ธฐ


๐Ÿค– ์ด ๋Œ“๊ธ€์€ GitHub App์„ ํ†ตํ•ด ์ž๋™์œผ๋กœ ์ž‘์„ฑ๋˜์—ˆ์Šต๋‹ˆ๋‹ค.

Comment thread 3sum/user-a.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-a.py
def solution(A):
    return "test"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ œ๊ณต๋œ ์ฝ”๋“œ๋Š” ๋ฌธ์ œ ํ•ด๊ฒฐ ๋กœ์ง์ด ์ „ํ˜€ ๊ตฌํ˜„๋˜์–ด ์žˆ์ง€ ์•Š์œผ๋ฉฐ, ํŠน์ • ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์ด ๋“œ๋Ÿฌ๋‚˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ์–ด๋–ค ํŒจํ„ด์—๋„ ํ•ด๋‹นํ•˜์ง€ ์•Š๋Š” ๊ฒƒ์œผ๋กœ ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n^2)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ํ˜„์žฌ ์ฝ”๋“œ๋Š” ์ž…๋ ฅ์„ ์ „ํ˜€ ์ฒ˜๋ฆฌํ•˜์ง€ ์•Š๊ณ  ๊ณ ์ •๋œ ๋ฌธ์ž์—ด์„ ๋ฐ˜ํ™˜ํ•˜๋ฏ€๋กœ ์‹ค์ œ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋™์ž‘์ด๋‚˜ ๋ณต์žก๋„ ๋ถ„์„์ด ๋ถˆ๊ฐ€๋Šฅํ•˜๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-b.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-b.py
def solution(nums):
    return "test"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ์‹ค์ œ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฌํ˜„์ด ์—†๊ณ , ํ…Œ์ŠคํŠธ ๋ฌธ์ž์—ด์„ ๋ฐ˜ํ™˜ํ•ฉ๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ํŠน์ • ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์— ์†ํ•œ๋‹ค๊ณ  ํŒ๋‹จํ•  ๊ทผ๊ฑฐ๊ฐ€ ์—†์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n^2)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ํ˜„์žฌ ์ฝ”๋“œ๋Š” ์ž…๋ ฅ์„ ์ „ํ˜€ ์ฒ˜๋ฆฌํ•˜์ง€ ์•Š๊ณ  ๊ณ ์ •๋œ ๋ฌธ์ž์—ด์„ ๋ฐ˜ํ™˜ํ•˜๋ฏ€๋กœ ์‹ค์ œ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋™์ž‘์ด๋‚˜ ๋ณต์žก๋„ ๋ถ„์„์ด ๋ถˆ๊ฐ€๋Šฅํ•˜๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-b.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-b.py
def solution(nums):
    return "test2"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๊ฐ€ ์‹ค์ œ ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ๊ตฌํ˜„ํ•˜์ง€ ์•Š๊ณ  ๋‹จ์ˆœํžˆ ๊ณ ์ •๋œ ๋ฌธ์ž์—ด์„ ๋ฐ˜ํ™˜ํ•ฉ๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ํŠน์ • ํŒจํ„ด์„ ๋„์ถœํ•˜๊ธฐ ์–ด๋ ต๊ณ , ํŒจํ„ด ๋ชฉ๋ก์— ํ•ด๋‹นํ•˜๋Š” ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŠน์ง•์ด ๋‚˜ํƒ€๋‚˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n^2)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ฐฐ์—ด ์ •๋ ฌ๊ณผ ๋‘ ํฌ์ธํ„ฐ๋กœ ์ค‘๋ณต ์ œ๊ฑฐ๋ฅผ ํ†ตํ•ด ์‹œ๊ฐ„ ๋ณต์žก๋„๋ฅผ O(n^2)๋กœ ๋‹ฌ์„ฑํ•œ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-d.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-c.py
def solution(A):
    return "test"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ œ์‹œ๋œ ์ฝ”๋“œ๋Š” ์‹ค์ œ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฌํ˜„์ด ์—†๊ณ  ํ•ญ์ƒ ๋ฌธ์ž์—ด์„ ๋ฐ˜ํ™˜ํ•ฉ๋‹ˆ๋‹ค. ํŒจํ„ด์„ ์‹๋ณ„ํ•  ์ˆ˜ ์žˆ๋Š” ๋กœ์ง์ด ํฌํ•จ๋˜์–ด ์žˆ์ง€ ์•Š์œผ๋ฏ€๋กœ ํ•ด๋‹น ํŒจํ„ด์€ ์—†์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n^2)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ํ˜„์žฌ ์ฝ”๋“œ๋Š” ์ž…๋ ฅ์„ ์ฒ˜๋ฆฌํ•˜์ง€ ์•Š๊ณ  ๊ณ ์ •๋œ ๋ฌธ์ž์—ด์„ ๋ฐ˜ํ™˜ํ•˜๋ฏ€๋กœ ๋ฌธ์ œ ์˜๋„์™€ ๋ฌด๊ด€ํ•ฉ๋‹ˆ๋‹ค. ์ •๋ ฌ + ๋‘ ํฌ์ธํ„ฐ๋ฅผ ์ด์šฉํ•œ O(n^2) ํ’€์ด๊ฐ€ ์ผ๋ฐ˜์ ์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ๊ณ ๋ คํ•ด๋ณผ ๋งŒํ•œ ๋Œ€์•ˆ: ๋ฐฐ์—ด์„ ์ •๋ ฌํ•œ ๋’ค ์™ผ์ชฝ/์˜ค๋ฅธ์ชฝ ํฌ์ธํ„ฐ๋ฅผ ์ด๋™์‹œํ‚ค๋ฉฐ ํ•ฉ์ด 0์ธ ๊ฒฝ์šฐ๋ฅผ ์ฐพ๋Š” ํ‘œ์ค€ 3Sum ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฌํ˜„.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-d.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-d.py
def solution(A):
    return "test"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ๋ฌธ์ œ ๊ตฌํ˜„์ด ๋น„์–ด ์žˆ์–ด ํŠน์ • ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์„ ๋„์ถœํ•˜๊ธฐ ์–ด๋ ต์Šต๋‹ˆ๋‹ค. ์ž…๋ ฅ์— ๋Œ€ํ•œ ์ฒ˜๋ฆฌ๋‚˜ ํƒ์ƒ‰ ๋กœ์ง์ด ๋ณด์ด์ง€ ์•Š์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n^2)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ํ˜„์žฌ ๊ตฌํ˜„์€ ์ž…๋ ฅ์„ ์ฒ˜๋ฆฌํ•˜์ง€ ์•Š๊ณ  ํ•ญ์ƒ ๋ฌธ์ž์—ด์„ ๋ฐ˜ํ™˜ํ•˜๋ฏ€๋กœ ์‹ค์ œ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋™์ž‘์ด ์—†๊ณ  ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ์ถ”์ •์ด ๋ถˆ๊ฐ€๋Šฅํ•ฉ๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์„ ์‹ค์ œ 3sum ๋กœ์ง์œผ๋กœ ๋ฐ”๊ฟ” ์ •๋ ฌ + ์™ผ์ชฝ/์˜ค๋ฅธ์ชฝ ํฌ์ธํ„ฐ๋กœ ์ค‘๋ณต ์ œ๊ฑฐ๋ฅผ ํฌํ•จ์‹œํ‚ค๋Š” ๊ฒƒ์ด ์ข‹์Šต๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

@parkhojeong parkhojeong reopened this Jul 29, 2026
Comment thread 3sum/user-a.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-a.py
def solution(A):
    return "test"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” 3sum ๋ฌธ์ œ์™€ ๋ฌด๊ด€ํ•œ ๋นˆ ๊ตฌํ˜„์— ๋ถˆ๊ณผํ•˜๋ฉฐ, ์‹ค์ œ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์ด ๋“œ๋Ÿฌ๋‚˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ์ ์šฉ ๊ฐ€๋Šฅํ•œ ํŒจํ„ด์„ ์‹๋ณ„ํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ฐฐ์—ด์˜ ๊ธธ์ด๋‚˜ ์ž…๋ ฅ์— ์˜์กดํ•˜์ง€ ์•Š๋Š” ์ƒ์ˆ˜ ์‹œ๊ฐ„/๊ณต๊ฐ„์˜ ๊ตฌํ˜„์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-b.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-b.py
def solution(nums):
    return "test2"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๊ฐ€ ๊ธฐ๋Šฅ ๊ตฌํ˜„ ์—†์ด ์ƒ์ˆ˜ ๋ฌธ์ž์—ด์„ ๋ฐ˜ํ™˜ํ•˜๋ฏ€๋กœ ํŠน์ • ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์„ ์‹๋ณ„ํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ํŒจํ„ด์€ ์—†๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ฐฐ์—ด์˜ ๊ธธ์ด๋‚˜ ์ž…๋ ฅ์— ์˜์กดํ•˜์ง€ ์•Š๋Š” ์ƒ์ˆ˜ ์‹œ๊ฐ„/๊ณต๊ฐ„์˜ ๊ตฌํ˜„์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-d.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-c.py
def solution(A):
    return "test"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ์‹ค์ œ ์•Œ๊ณ ๋ฆฌ์ฆ˜์ด ์—†๊ณ  ๊ฐ„๋‹จํ•œ ๋”๋ฏธ ํ•จ์ˆ˜์ž…๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ํŠน์ • ํŒจํ„ด์œผ๋กœ ๋ถ„๋ฅ˜๋˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ฐฐ์—ด์˜ ๊ธธ์ด๋‚˜ ์ž…๋ ฅ์— ์˜์กดํ•˜์ง€ ์•Š๋Š” ์ƒ์ˆ˜ ์‹œ๊ฐ„/๊ณต๊ฐ„์˜ ๊ตฌํ˜„์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-d.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-d.py
def testd():
    return "test"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” 3sum ๋ฌธ์ œ์˜ ์ฝ”๋“œ๊ฐ€ ์•„๋‹ˆ๋ฉฐ ์–ด๋–ค ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด๋„ ํŒ๋‹จ๋˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๋‹จ์ˆœ ํ…Œ์ŠคํŠธ ํ•จ์ˆ˜๋งŒ ํฌํ•จ๋˜์–ด ์žˆ์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ํ•จ์ˆ˜๋Š” ํ…Œ์ŠคํŠธ์šฉ์œผ๋กœ ๋ณด์ด๋ฉฐ ์‹ค์ œ ๋ฌธ์ œ ํ•ด๊ฒฐ ๋กœ์ง์ด ์—†์Šต๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-c.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-c.py
def solution(A, B, C):
    return "testc"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์†Œ์Šค๋Š” ์ž…๋ ฅ์— ๋ฌด๊ด€ํ•˜๊ฒŒ ๊ณ ์ •๋œ ๋ฌธ์ž์—ด์„ ๋ฐ˜ํ™˜ํ•˜๋Š” ๋‹จ์ˆœ ํ•จ์ˆ˜๋กœ, ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์ด ๋“œ๋Ÿฌ๋‚˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. 3Sum ๋ฌธ์ œ์˜ ์˜์‚ฌ์†Œํ†ต๋งŒ ์žˆ์„ ๋ฟ ์‹ค์ œ ๊ตฌํ˜„์ด ์—†์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

โ„น๏ธ ์ด ํŒŒ์ผ์—๋Š” 2๊ฐ€์ง€ ํ’€์ด๊ฐ€ ํฌํ•จ๋˜์–ด ์žˆ์–ด ๊ฐ๊ฐ ๋ถ„์„ํ•ฉ๋‹ˆ๋‹ค.

ํ’€์ด 1: solution โ€” Time: O(1) / Space: O(1)
๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ์ฝ”๋“œ๊ฐ€ ์ฃผ์–ด์ง„ ์ž…๋ ฅ์— ๋Œ€ํ•ด ์ƒ์ˆ˜ ์‹œ๊ฐ„์œผ๋กœ ๊ณ ์ • ๊ฐ’์„ ๋ฐ˜ํ™˜ํ•˜๋ฏ€๋กœ ์‹œ๊ฐ„/๊ณต๊ฐ„์€ ๋ชจ๋‘ ์ƒ์ˆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

ํ’€์ด 2: testd โ€” Time: O(1) / Space: O(1)
๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋งˆ์ฐฌ๊ฐ€์ง€๋กœ ์ž…๋ ฅ์— ์˜์กดํ•˜์ง€ ์•Š๊ณ  ์ƒ์ˆ˜ ์‹œ๊ฐ„/๊ณต๊ฐ„์œผ๋กœ ๋™์ž‘ํ•ฉ๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-d.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-d.py
def testd():
    return "test2"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ œ์‹œ๋œ ์ฝ”๋“œ์—๋Š” ์‹ค์ œ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ตฌํ˜„์ด ์—†๊ณ  3sum ๋ฌธ์ œ์˜ ์ด๋ฆ„๋งŒ ์ฃผ์–ด์ ธ ์žˆ์Šต๋‹ˆ๋‹ค. ํŒจํ„ด์„ ๋„์ถœํ•  ์ˆ˜ ์žˆ๋Š” ๊ตฌ์ฒด์  ์ฝ”๋“œ๊ฐ€ ์—†์–ด ๋Œ€์‘๋˜๋Š” ํŒจํ„ด์ด ์—†์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

โ„น๏ธ ์ด ํŒŒ์ผ์—๋Š” 2๊ฐ€์ง€ ํ’€์ด๊ฐ€ ํฌํ•จ๋˜์–ด ์žˆ์–ด ๊ฐ๊ฐ ๋ถ„์„ํ•ฉ๋‹ˆ๋‹ค.

ํ’€์ด 1: solution โ€” Time: O(1) / Space: O(1)
๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ์ฝ”๋“œ๊ฐ€ ์ฃผ์–ด์ง„ ์ž…๋ ฅ์— ๋Œ€ํ•ด ์ƒ์ˆ˜ ์‹œ๊ฐ„์œผ๋กœ ๊ณ ์ • ๊ฐ’์„ ๋ฐ˜ํ™˜ํ•˜๋ฏ€๋กœ ์‹œ๊ฐ„/๊ณต๊ฐ„์€ ๋ชจ๋‘ ์ƒ์ˆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

ํ’€์ด 2: testd โ€” Time: O(1) / Space: O(1)
๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋งˆ์ฐฌ๊ฐ€์ง€๋กœ ์ž…๋ ฅ์— ์˜์กดํ•˜์ง€ ์•Š๊ณ  ์ƒ์ˆ˜ ์‹œ๊ฐ„/๊ณต๊ฐ„์œผ๋กœ ๋™์ž‘ํ•ฉ๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-d.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-d.py
def testd():
    return "test3"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ œ๊ณต๋œ ์ฝ”๋“œ๋Š” ๋ฌธ์ œ ํ’€์ด ์ฝ”๋“œ๊ฐ€ ์•„๋‹ˆ๋ผ ํ…Œ์ŠคํŠธ ํ•จ์ˆ˜๋งŒ์œผ๋กœ ์–ด๋–ค ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด๋„ ํŒ๋‹จํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ํ•ด๋‹น ํŒจํ„ด์„ ์‹๋ณ„ํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ์ฃผ์–ด์ง„ ์ฝ”๋“œ์—๋Š” 3sum ๋ฌธ์ œ ํ•ด๊ฒฐ ๋กœ์ง์ด ์ „ํ˜€ ์—†๊ณ  ๋‹จ์ˆœํ•œ ํ…Œ์ŠคํŠธ ํ•จ์ˆ˜๋งŒ ์กด์žฌํ•ฉ๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-e.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-e.py
def solution(A, B):
    return sum(A) - sum(B)
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ œ์‹œ๋œ solution์€ ๋‘ ๋ฐฐ์—ด์˜ ํ•ฉ ์ฐจ์ด๋ฅผ ๊ณ„์‚ฐํ•˜๋Š” ๋‹จ์ˆœ ์‚ฐ์ˆ  ์—ฐ์‚ฐ์œผ๋กœ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์ด ์‹๋ณ„๋˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๋ฌธ์ œ ์ด๋ฆ„์ด 3sum์ด์ง€๋งŒ ์ฝ”๋“œ์—๋Š” ํŒจํ„ด์œผ๋กœ ํ•ด๋‹น๋˜์ง€ ์•Š๋Š” ๋‹จ์ˆœ ํ•ฉ ์ฐจ์ด ๊ณ„์‚ฐ๋ฟ์ž…๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ์ฃผ์–ด์ง„ ์ฝ”๋“œ์—๋Š” 3sum ๋ฌธ์ œ ํ•ด๊ฒฐ ๋กœ์ง์ด ์ „ํ˜€ ์—†๊ณ  ๋‹จ์ˆœํ•œ ํ…Œ์ŠคํŠธ ํ•จ์ˆ˜๋งŒ ์กด์žฌํ•ฉ๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-c.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-c.py
def solution(A, B, C):
    return "testc"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๊ฐ€ ์‹ค์ œ ์•Œ๊ณ ๋ฆฌ์ฆ˜์„ ๊ตฌํ˜„ํ•˜์ง€ ์•Š๊ณ  ๋‹จ์ˆœํžˆ ๋ฌธ์ž์—ด์„ ๋ฐ˜ํ™˜ํ•ฉ๋‹ˆ๋‹ค. ํŒจํ„ด์„ ์‹๋ณ„ํ•  ์ˆ˜ ์žˆ๋Š” ๊ตฌ์ฒด์  ๋กœ์ง์ด ํฌํ•จ๋˜์–ด ์žˆ์ง€ ์•Š์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ์ž…๋ ฅ์— ๋”ฐ๋ฅธ ๊ณ„์‚ฐ ์—†์ด ์ƒ์ˆ˜ ๊ฐ’์„ ๋ฐ˜ํ™˜ํ•˜๋Š” ํ˜•ํƒœ๋กœ, ๋ฌธ์ œ์˜ ์š”๊ตฌ ์กฐ๊ฑด์ธ 3sum ์•Œ๊ณ ๋ฆฌ์ฆ˜์˜ ๋™์ž‘์„ ๊ตฌํ˜„ํ•˜์ง€ ์•Š์Œ.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-d.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-d.py
def testd():
    return "test3"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ์—๋Š” ์‹ค์ œ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋กœ์ง์ด ์—†๊ณ , 3sum ๋ฌธ์ œ๋ฅผ ์ง€์นญํ•˜์ง€๋งŒ ๊ตฌํ˜„์ด ํฌํ•จ๋˜์ง€ ์•Š์•„ ์ง€์ •๋œ ํŒจํ„ด์„ ์‹๋ณ„ํ•  ์ˆ˜ ์—†์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ์ž…๋ ฅ์— ๋”ฐ๋ฅธ ๊ณ„์‚ฐ ์—†์ด ์ƒ์ˆ˜ ๊ฐ’์„ ๋ฐ˜ํ™˜ํ•˜๋Š” ํ˜•ํƒœ๋กœ, ๋ฌธ์ œ์˜ ์š”๊ตฌ ์กฐ๊ฑด์ธ 3sum ์•Œ๊ณ ๋ฆฌ์ฆ˜์˜ ๋™์ž‘์„ ๊ตฌํ˜„ํ•˜์ง€ ์•Š์Œ.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-e.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-e.py
def solution(A, B):
    return sum(A) - sum(B)
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ๋‘ ๋ฐฐ์—ด์˜ ํ•ฉ ์ฐจ์ด๋ฅผ ๋‹จ์ˆœํžˆ ๊ณ„์‚ฐํ•  ๋ฟ์œผ๋กœ, ํŠน์ • ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์— ํ•ด๋‹นํ•˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ์ผ๋ฐ˜์ ์ธ ํŒจํ„ด ๋ชฉ๋ก๊ณผ ๋งค์นญ๋˜์ง€ ์•Š๋Š” ๋‹จ์ˆœ ์‚ฐ์ˆ  ์—ฐ์‚ฐ ์˜ˆ์ œ์ž…๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ์ž…๋ ฅ์— ๋”ฐ๋ฅธ ๊ณ„์‚ฐ ์—†์ด ์ƒ์ˆ˜ ๊ฐ’์„ ๋ฐ˜ํ™˜ํ•˜๋Š” ํ˜•ํƒœ๋กœ, ๋ฌธ์ œ์˜ ์š”๊ตฌ ์กฐ๊ฑด์ธ 3sum ์•Œ๊ณ ๋ฆฌ์ฆ˜์˜ ๋™์ž‘์„ ๊ตฌํ˜„ํ•˜์ง€ ์•Š์Œ.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

Comment thread 3sum/user-e.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-e.py
def solution(A, B):
    return sum(A) - sum(B) + 0
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ๋‘ ๋ฐฐ์—ด์˜ ํ•ฉ์˜ ์ฐจ๋ฅผ ๊ฐ„๋‹จํžˆ ๊ณ„์‚ฐํ•˜๋Š” ์ƒ์ˆ˜ ์‹œ๊ฐ„ ์‚ฐ์ˆ ์‹์œผ๋กœ, ํŠน์ • ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์ด ์ ์šฉ๋˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ํŒจํ„ด์œผ๋กœ ๋ถ„๋ฅ˜๋˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n + m)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ์ •์˜๋œ ํ•จ์ˆ˜๋Š” ๋‘ ๋ฐฐ์—ด์˜ ํ•ฉ ์ฐจ๋ฅผ ์ƒ์ˆ˜ ์‹œ๊ฐ„์œผ๋กœ ๊ณ„์‚ฐํ•ฉ๋‹ˆ๋‹ค. ์ž…๋ ฅ ํฌ๊ธฐ์— ๋”ฐ๋ฅธ ๋ฐ˜๋ณต์ด๋‚˜ ์ •๋ ฌ์ด ์—†์œผ๋ฏ€๋กœ ์‹œ๊ฐ„ ๋ณต์žก๋„๋Š” ์ž…๋ ฅ ํฌ๊ธฐ์— ์˜์กดํ•˜์ง€ ์•Š๋Š” ์ƒ์ˆ˜์— ๊ฐ€๊น์Šต๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

@parkhojeong parkhojeong closed this Aug 2, 2026
@parkhojeong parkhojeong reopened this Aug 2, 2026
@parkhojeong parkhojeong closed this Aug 2, 2026
@parkhojeong parkhojeong reopened this Aug 2, 2026
Comment thread 3sum/user-d.py

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

3sum/user-d.py
def testd():
    return "test4"
  • ํŒจํ„ด: ๊ฐ์ง€๋œ ํŒจํ„ด ์—†์Œ
  • ์„ค๋ช…: ์ œ์‹œ๋œ ์ฝ”๋“œ๋Š” ์–ด๋–ค ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด๋„ ์ ์šฉ๋˜์–ด ์žˆ์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๋‹จ์ˆœ ํ•จ์ˆ˜ ๋ฐ˜ํ™˜ ์ฝ”๋“œ๋กœ ๋ถ„์„ ๊ฐ€๋Šฅํ•œ ํŒจํ„ด์ด ์—†์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(1)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋™์ž‘์ด ์—†์ด ์ƒ์ˆ˜ ์‹œ๊ฐ„/๊ณต๊ฐ„์˜ ํ•จ์ˆ˜๋กœ ๋ณด์ด๋‚˜, ์‹ค์ œ ๋ฌธ์ œ ํ•ด๊ฒฐ ๋กœ์ง์ด ์—†์œผ๋ฏ€๋กœ ๋ณต์žก๋„ ์ถ”์ •์ด ๋ถˆ๊ฐ€๋Šฅํ•˜๊ณ  ํ˜„์žฌ ์ฝ”๋“œ๋Š” ํ…Œ์ŠคํŠธ์šฉ์œผ๋กœ ๋ณด์ธ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

@dalestudy-dev-bot

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๐Ÿ“Š parkhojeong ๋‹˜์˜ ํ•™์Šต ํ˜„ํ™ฉ

์ด๋ฒˆ ์ฃผ ์ œ์ถœ ๋ฌธ์ œ

๋ฌธ์ œ ๋‚œ์ด๋„ ์œ ํ˜• ๋ถ„์„
subrequest-test-01 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-02 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-03 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-04 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-05 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-06 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-07 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-08 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-09 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-10 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-11 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-12 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-13 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-14 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ
subrequest-test-15 - โ„น๏ธ ์นดํ…Œ๊ณ ๋ฆฌ ์ •๋ณด ์—†์Œ

๋ˆ„์  ํ•™์Šต ์š”์•ฝ

  • ํ’€์ดํ•œ ๋ฌธ์ œ: 25 / 75๊ฐœ

๋ฌธ์ œ ํ’€์ด ํ˜„ํ™ฉ

์นดํ…Œ๊ณ ๋ฆฌ ์ง„ํ–‰๋„ ์™„๋ฃŒ
Array โ– โ– โ– โ– โ– โ–กโ–ก 7 / 10 (Medium 4, Easy 3)
Dynamic Programming โ– โ– โ– โ– โ–กโ–กโ–ก 6 / 11 (Easy 1, Medium 5)
String โ– โ– โ– โ–กโ–กโ–กโ–ก 4 / 10 (Medium 2, Easy 2)
Heap โ– โ– โ–กโ–กโ–กโ–กโ–ก 1 / 3 (Medium 1)
Matrix โ– โ– โ–กโ–กโ–กโ–กโ–ก 1 / 4 (Medium 1)
Tree โ– โ– โ–กโ–กโ–กโ–กโ–ก 3 / 14 (Medium 2, Easy 1)
Binary โ– โ–กโ–กโ–กโ–กโ–กโ–ก 1 / 5 (Easy 1)
Linked List โ– โ–กโ–กโ–กโ–กโ–กโ–ก 1 / 6 (Easy 1)
Graph โ– โ–กโ–กโ–กโ–กโ–กโ–ก 1 / 8 (Medium 1)
Interval โ–กโ–กโ–กโ–กโ–กโ–กโ–ก 0 / 5 โ† ์•„์ง ์‹œ์ž‘ ์•ˆ ํ•จ

๐Ÿค– ์ด ๋Œ“๊ธ€์€ GitHub App์„ ํ†ตํ•ด ์ž๋™์œผ๋กœ ์ž‘์„ฑ๋˜์—ˆ์Šต๋‹ˆ๋‹ค.

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

subrequest-test-01/parkhojeong.js
function solution01(numbers) {
  return numbers.reduce((sum, number) => sum + number, 0);
}
  • ํŒจํ„ด: Greedy, Hash Map / Hash Set
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ๋ฐฐ์—ด์˜ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœ ๋ˆ„์  ํ•ฉ ๊ณ„์‚ฐ์œผ๋กœ ํŠน์ • ํŒจํ„ด์— ์†ํ•˜๋Š” ๋…๋ฆฝ์  ์•Œ๊ณ ๋ฆฌ์ฆ˜์€ ๋ช…์‹œ์ ์œผ๋กœ ๋“œ๋Ÿฌ๋‚˜์ง€ ์•Š์ง€๋งŒ, reduce๋ฅผ ์ด์šฉํ•œ ์—ฐ์‚ฐ ์ถ•์•ฝ์€ ์ผ๋ฐ˜์ ์œผ๋กœ Greedy๋‚˜ Hash ๊ธฐ๋ฐ˜ ์ ‘๊ทผ๊ณผ ๋ฌด๊ด€ํ•˜๊ฒŒ ๋‹จ์ˆœ ์„ ํ˜• ํƒ์ƒ‰์œผ๋กœ ๋ณผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ํ•ต์‹ฌ์€ ๋ฐ˜๋ณต์  ๋ˆ„์ ์ด๋ฉฐ ์ตœ์ ํ™” ํŒจํ„ด์€ ๋ช…ํ™•ํžˆ ๋ณด์ด์ง€ ์•Š์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ฐฐ์—ด ์ˆœํšŒ๋กœ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœํ•œ ํ•ฉ์‚ฐ ์•Œ๊ณ ๋ฆฌ์ฆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

subrequest-test-02/parkhojeong.js
function solution02(numbers) {
  return numbers.reduce((sum, number) => sum + number, 0);
}
  • ํŒจํ„ด: Greedy, Divide and Conquer, Hash Map / Hash Set
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๊ฐ€ ๋ฐฐ์—ด์˜ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœ ํ•ฉ์‚ฐ ๋กœ์ง์œผ๋กœ, ํŠน์ • ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์— ํ•ด๋‹นํ•˜๊ธฐ๋ณด๋‹จ ์ผ๋ฐ˜์ ์ธ ๋ˆ„์  ๊ณ„์‚ฐ์— ๊ฐ€๊น์Šต๋‹ˆ๋‹ค. ๊ฐ€์žฅ ๊ทผ์ ‘ํ•œ ํŒจํ„ด์œผ๋กœ๋Š” ๋™์  ํ”„๋กœ๊ทธ๋ž˜๋ฐ์ด๋‚˜ ๊ทธ๋ฆฌ๋””๋„ ์ง์ ‘์  ํŒจํ„ด์€ ์•„๋‹ˆ๋ฉฐ, ํ•ฉ์‚ฐ์€ ํ”ํžˆ ๋‹ค๋ฃจ๋Š” ๊ธฐ์ดˆ์  ์—ฐ์‚ฐ์— ํ•ด๋‹นํ•ฉ๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ฐฐ์—ด ์ˆœํšŒ๋กœ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœํ•œ ํ•ฉ์‚ฐ ์•Œ๊ณ ๋ฆฌ์ฆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

subrequest-test-03/parkhojeong.js
function solution03(numbers) {
  return numbers.reduce((sum, number) => sum + number, 0);
}
  • ํŒจํ„ด: Greedy, Hash Map / Hash Set, Dynamic Programming, Divide and Conquer, Two Pointers, Sliding Window, Fast & Slow Pointers, BFS, DFS, Backtracking, Dynamic Programming, Binary Search, Monotonic Stack, Heap / Priority Queue, Trie, Bit Manipulation
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ์—์„œ numbers ๋ฐฐ์—ด์˜ ํ•ฉ์„ ๊ณ„์‚ฐํ•˜๋Š” ๋‹จ์ˆœ ํ•ฉ์‚ฐ ๋กœ์ง์œผ๋กœ, ํŠน์ • ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์— ์†ํ•˜๊ธฐ๋ณด๋‹ค๋Š” ์ผ๋ฐ˜์ ์ธ ๋ฐฐ์—ด ์ˆœํšŒ ๋ฐ ๋ˆ„์  ๊ณ„์‚ฐ์— ํ•ด๋‹นํ•ฉ๋‹ˆ๋‹ค. ํŒจํ„ด์œผ๋กœ ๋ณด๊ธฐ ์–ด๋ ต๊ณ , ๋‹จ์ˆœ reduce๋ฅผ ์ด์šฉํ•œ ํ•ฉ ๊ตฌํ•˜๊ธฐ์ž…๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ฐฐ์—ด ์ˆœํšŒ๋กœ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœํ•œ ํ•ฉ์‚ฐ ์•Œ๊ณ ๋ฆฌ์ฆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

subrequest-test-04/parkhojeong.js
function solution04(numbers) {
  return numbers.reduce((sum, number) => sum + number, 0);
}
  • ํŒจํ„ด: Greedy, Bit Manipulation, Hash Map / Hash Set
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ๋ฐฐ์—ด ์š”์†Œ๋ฅผ ์ˆœํšŒํ•˜๋ฉฐ ํ•ฉ์„ ๊ตฌํ•˜๋Š” reduce๋ฅผ ์‚ฌ์šฉํ•œ ๋‹จ์ˆœ ํ•ฉ์‚ฐ์œผ๋กœ, ํŠน์ • ์ตœ์ ํ™”๋‚˜ ํƒ์ƒ‰ ํŒจํ„ด์ด ์•„๋‹ˆ๋ผ ํ•ฉ์‚ฐ ๋กœ์ง์— ๊ฐ€๊นŒ์šด ์ผ๋ฐ˜์ ์ธ ์ฒ˜๋ฆฌ์ž…๋‹ˆ๋‹ค. ํ•˜์ง€๋งŒ ํŒจํ„ด ๋ชฉ๋ก์— ๋งž์ถ˜ ๋ถ„๋ฅ˜์ƒ Greedy๋‚˜ Bit Manipulation, Hash ๊ด€๋ จ ํŒจํ„ด์˜ ์—ฐ๊ฒฐ๊ณ ๋ฆฌ๊ฐ€ ์•ฝํ•˜๊ฒŒ ๋ณด์ผ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ฐฐ์—ด ์ˆœํšŒ๋กœ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœํ•œ ํ•ฉ์‚ฐ ์•Œ๊ณ ๋ฆฌ์ฆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

subrequest-test-05/parkhojeong.js
function solution05(numbers) {
  return numbers.reduce((sum, number) => sum + number, 0);
}
  • ํŒจํ„ด: Greedy, Hash Map / Hash Set, Dynamic Programming, Two Pointers, Sliding Window, Fast & Slow Pointers, BFS, DFS, Backtracking, Divide and Conquer, Union Find, Trie, Bit Manipulation, Heap / Priority Queue
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ๋ฐฐ์—ด์˜ ํ•ฉ๊ณ„๋ฅผ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœ ํ•ฉ์‚ฐ์œผ๋กœ, ํŠน๋ณ„ํ•œ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์ด ์ ์šฉ๋˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ํŒจํ„ด ๋ชฉ๋ก ์ค‘ ํ•ด๋‹น๋˜๋Š” ๋Œ€ํ‘œ ํŒจํ„ด์€ ์—†์œผ๋ฉฐ, ์ผ๋ฐ˜์ ์œผ๋กœ๋Š” ํ•ฉ๊ณ„๋ฅผ ๊ตฌํ•˜๋Š” ๊ธฐ๋ณธ ์—ฐ์‚ฐ์— ํ•ด๋‹นํ•ฉ๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ฐฐ์—ด ์ˆœํšŒ๋กœ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœํ•œ ํ•ฉ์‚ฐ ์•Œ๊ณ ๋ฆฌ์ฆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

subrequest-test-01/parkhojeong.js
function solution01(numbers) {
  return numbers.reduce((total, number) => total + number, 0);
}
  • ํŒจํ„ด: Greedy, Hash Map / Hash Set
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ๋ฐฐ์—ด์˜ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๊ฐ„๋‹จํ•œ ๋ˆ„์  ์—ฐ์‚ฐ์œผ๋กœ, ํŠน์ • ํŒจํ„ด์— ํ•ด๋‹นํ•˜๋Š” ๊ณ ์œ  ์•Œ๊ณ ๋ฆฌ์ฆ˜์€ ์—†๊ณ  ์ˆœ์ฐจ์  ๋ˆ„์ ์ด ํ•ต์‹ฌ์ด๋‹ค. ๋‹ค๋งŒ ํŠน๋ณ„ํ•œ ํƒ์ƒ‰/์ตœ์ ํ™” ํŒจํ„ด์€ ์‚ฌ์šฉ๋˜์ง€ ์•Š๋Š”๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ชจ๋“  ์›์†Œ๋ฅผ ํ•œ ๋ฒˆ์”ฉ ์ˆœํšŒํ•˜๋ฉฐ ํ•ฉ๊ณ„๋ฅผ ๊ตฌํ•˜๋Š” ์„ ํ˜• ์•Œ๊ณ ๋ฆฌ์ฆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

subrequest-test-02/parkhojeong.js
function solution02(numbers) {
  return numbers.reduce((total, number) => total + number, 0);
}
  • ํŒจํ„ด: Greedy
  • ์„ค๋ช…: ๋ฐฐ์—ด์˜ ๊ฐ ์š”์†Œ๋ฅผ ์ˆœํšŒํ•˜๋ฉฐ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœ ํ•ฉ์‚ฐ ์—ฐ์‚ฐ์œผ๋กœ, ์ตœ์ ํ™”๋œ ๋ˆ„์  ์—ฐ์‚ฐ์˜ ์•„์ด๋””์–ด๋ฅผ ํ™œ์šฉํ•˜๋Š” ํŒจํ„ด์œผ๋กœ ๊ฐ„์ฃผ๋  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค. ๋‹ค์ˆ˜์˜ ๋ฌธ์ œ์—์„œ ํ•ฉ๊ณ„๋‚˜ ์ตœ๋Œ“๊ฐ’/์ตœ์†Ÿ๊ฐ’์„ ๋ˆ„์ ํ•˜๋Š” ๊ฒฝ์šฐ์— ํ•ด๋‹นํ•ฉ๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ชจ๋“  ์›์†Œ๋ฅผ ํ•œ ๋ฒˆ์”ฉ ์ˆœํšŒํ•˜๋ฉฐ ํ•ฉ๊ณ„๋ฅผ ๊ตฌํ•˜๋Š” ์„ ํ˜• ์•Œ๊ณ ๋ฆฌ์ฆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

subrequest-test-03/parkhojeong.js
function solution03(numbers) {
  return numbers.reduce((total, number) => total + number, 0);
}
  • ํŒจํ„ด: Greedy, Hash Map / Hash Set, Dynamic Programming, Divide and Conquer, Two Pointers, Sliding Window, Binary Search, Monotonic Stack, Heap / Priority Queue, BFS, DFS, Backtracking, Union Find, Trie, Bit Manipulation
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ๋ฐฐ์—ด์˜ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœ ๋ˆ„์‚ฐ ๋ฐฉ์‹์œผ๋กœ, ํŠน์ • ํŒจํ„ด์— ์†ํ•˜๋Š” ๋Œ€ํ‘œ ์•Œ๊ณ ๋ฆฌ์ฆ˜์€ ์—†์Šต๋‹ˆ๋‹ค. reduce๋ฅผ ์‚ฌ์šฉํ•œ ํ•ฉ์‚ฐ์€ ์ผ๋ฐ˜์ ์ธ ๋ฐ˜๋ณต/์ง‘๊ณ„ ์—ฐ์‚ฐ์ด๋ฉฐ, ํŠน์ • ๊ณ ๊ธ‰ ํŒจํ„ด์œผ๋กœ ๋ถ„๋ฅ˜ํ•˜๊ธฐ ์–ด๋ ต์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ชจ๋“  ์›์†Œ๋ฅผ ํ•œ ๋ฒˆ์”ฉ ์ˆœํšŒํ•˜๋ฉฐ ํ•ฉ๊ณ„๋ฅผ ๊ตฌํ•˜๋Š” ์„ ํ˜• ์•Œ๊ณ ๋ฆฌ์ฆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

subrequest-test-04/parkhojeong.js
function solution04(numbers) {
  return numbers.reduce((total, number) => total + number, 0);
}
  • ํŒจํ„ด: Greedy, Hash Map / Hash Set, Dynamic Programming, Divide and Conquer, Two Pointers, Sliding Window, Fast & Slow Pointers, BFS, DFS, Backtracking, Union Find, Trie, Bit Manipulation, Heap / Priority Queue, Monotonic Stack
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ๋ฐฐ์—ด์˜ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๊ฐ„๋‹จํ•œ ๋ˆ„์  ์—ฐ์‚ฐ์œผ๋กœ ํŠน์ • ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์ด ๋‘๋“œ๋Ÿฌ์ง€์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ์ผ๋ฐ˜์ ์œผ๋กœ๋Š” Reduce๋ฅผ ์ด์šฉํ•œ ๋ˆ„์ /ํ•ฉ์‚ฐ์œผ๋กœ ํŒจํ„ด ๋ถ„๋ฅ˜์ƒ ํŠน์ • ์•Œ๊ณ ๋ฆฌ์ฆ˜์œผ๋กœ ํ•œ์ •ํ•˜๊ธฐ ์–ด๋ ต์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ชจ๋“  ์›์†Œ๋ฅผ ํ•œ ๋ฒˆ์”ฉ ์ˆœํšŒํ•˜๋ฉฐ ํ•ฉ๊ณ„๋ฅผ ๊ตฌํ•˜๋Š” ์„ ํ˜• ์•Œ๊ณ ๋ฆฌ์ฆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

subrequest-test-05/parkhojeong.js
function solution05(numbers) {
  return numbers.reduce((total, number) => total + number, 0);
}
  • ํŒจํ„ด: Greedy, Hash Map / Hash Set, Dynamic Programming
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ๋ฐฐ์—ด์˜ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœ ๋ˆ„์  ํ•ฉ ๊ณ„์‚ฐ์œผ๋กœ, ํŠน์ • ํŒจํ„ด๊ณผ ์ง์ ‘์ ์ธ ์—ฐ๊ฒฐ์€ ์•ฝํ•˜๋‹ค. reduce๋ฅผ ์ด์šฉํ•œ ์ˆœ์ฐจ ๋ˆ„์ ์€ ์ผ๋ฐ˜์ ์œผ๋กœ Greedy๋‚˜ DP์™€ ์ง์ ‘ ์—ฐ๊ฒฐ๋˜์ง„ ์•Š์œผ๋‚˜, ๋ฌธ์ œ ๋งฅ๋ฝ์—์„œ ํ•ฉ์‚ฐ ํŒจํ„ด์œผ๋กœ ํ•ด์„ํ•  ์ˆ˜ ์žˆ์–ด ๋ฒ”์šฉ ํŒจํ„ด์œผ๋กœ ๊ฐ„์ฃผ๋  ์ˆ˜ ์žˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: ๋ชจ๋“  ์›์†Œ๋ฅผ ํ•œ ๋ฒˆ์”ฉ ์ˆœํšŒํ•˜๋ฉฐ ํ•ฉ๊ณ„๋ฅผ ๊ตฌํ•˜๋Š” ์„ ํ˜• ์•Œ๊ณ ๋ฆฌ์ฆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

subrequest-test-06/parkhojeong.js
function solution06(numbers) {
  return numbers.reduce((sum, number) => sum + number, 0);
}
  • ํŒจํ„ด: Greedy
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ๋ฐฐ์—ด์˜ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœ ๋ˆ„์  ์—ฐ์‚ฐ์œผ๋กœ, ์ตœ์ ์˜ ํ•ด๋ฅผ ํƒ์ƒ‰ํ•˜๊ฑฐ๋‚˜ ์ƒํƒœ๋ฅผ ์ ์ง„์ ์œผ๋กœ ๋ˆ„์ ํ•˜๋Š” ํ๋ฆ„์ด์ง€๋งŒ ํŠน์ • ๊ณ ์œ  ํŒจํ„ด๋ณด๋‹ค๋Š” ์ผ๋ฐ˜์  ๋ฐฐ์—ด ๋ˆ„์ (ํ•ฉ์‚ฐ) ์ž‘์—…์— ๊ฐ€๊น์Šต๋‹ˆ๋‹ค. ์—ฌ๊ธฐ์— ํ•ด๋‹นํ•˜๋Š” ํŒจํ„ด์œผ๋กœ๋Š” Greedy๋ฅผ ์œ ์ถ”ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: sum ๋ณ€์ˆ˜์— ๊ฐ ์›์†Œ๋ฅผ ๋”ํ•ด ํ•ฉ๊ณ„๋ฅผ ๊ณ„์‚ฐํ•˜๋Š” ์„ ํ˜• ์•Œ๊ณ ๋ฆฌ์ฆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

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๐Ÿท๏ธ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด ๋ถ„์„

subrequest-test-07/parkhojeong.js
function solution07(numbers) {
  return numbers.reduce((sum, number) => sum + number, 0);
}
  • ํŒจํ„ด: Greedy, Hash Map / Hash Set, Dynamic Programming, Divide and Conquer, Two Pointers, Sliding Window, Fast & Slow Pointers, BFS, DFS, Backtracking, Union Find, Trie, Bit Manipulation, Heap / Priority Queue, Binary Search, Monotonic Stack
  • ์„ค๋ช…: ์ฃผ์–ด์ง„ ์ฝ”๋“œ๋Š” ๋ฐฐ์—ด์˜ ํ•ฉ์„ ๊ตฌํ•˜๋Š” ๋‹จ์ˆœํ•œ ๋ฆฌ๋“ˆ(reduce) ์‚ฌ์šฉ์œผ๋กœ, ํŠน์ • ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํŒจํ„ด์— ํ•ด๋‹นํ•˜๋Š” ๊ณ ๊ธ‰ ์ „๋žต์ด ์•„๋‹ˆ๋ผ ๊ธฐ๋ณธ์ ์ธ ๋ˆ„์ /ํ•ฉ์‚ฐ ์—ฐ์‚ฐ์— ํ•ด๋‹นํ•ฉ๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ์ผ๋ฐ˜ ํŒจํ„ด์œผ๋กœ ๋ณด๊ธฐ ์–ด๋ ค์›Œ, ๋ช…์‹œ์  ํŒจํ„ด์€ ์—†๊ณ  ๊ฐ„๋‹จํ•œ ๋ˆ„์  ๊ณ„์‚ฐ์— ๊ฐ€๊น์Šต๋‹ˆ๋‹ค.

๐Ÿ“Š ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„ ๋ถ„์„

๋ณต์žก๋„
Time O(n)
Space O(1)

ํ”ผ๋“œ๋ฐฑ: sum ๋ˆ„์  ํ•ฉ์‚ฐ์œผ๋กœ ๊ตฌํ˜„๋œ ์„ ํ˜• ์•Œ๊ณ ๋ฆฌ์ฆ˜์ž…๋‹ˆ๋‹ค.

๊ฐœ์„  ์ œ์•ˆ: ํ˜„์žฌ ๊ตฌํ˜„์ด ์ ์ ˆํ•ด ๋ณด์ž…๋‹ˆ๋‹ค.

๐Ÿ’ก ํ’€์ด์— ์‹œ๊ฐ„/๊ณต๊ฐ„ ๋ณต์žก๋„๋ฅผ ์ฃผ์„์œผ๋กœ ๋‚จ๊ฒจ๋ณด์„ธ์š”!

@parkhojeong parkhojeong closed this Aug 6, 2026
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