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coding test 7

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค/JS] 369 ๊ฒŒ์ž„

Problem Description ๋จธ์“ฑ์ด๋Š” ์นœ๊ตฌ๋“ค๊ณผ 369๊ฒŒ์ž„์„ ํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. 369๊ฒŒ์ž„์€ 1๋ถ€ํ„ฐ ์ˆซ์ž๋ฅผ ํ•˜๋‚˜์”ฉ ๋Œ€๋ฉฐ 3, 6, 9๊ฐ€ ๋“ค์–ด๊ฐ€๋Š” ์ˆซ์ž๋Š” ์ˆซ์ž ๋Œ€์‹  3, 6, 9์˜ ๊ฐœ์ˆ˜๋งŒํผ ๋ฐ•์ˆ˜๋ฅผ ์น˜๋Š” ๊ฒŒ์ž„์ž…๋‹ˆ๋‹ค. ๋จธ์“ฑ์ด๊ฐ€ ๋งํ•ด์•ผํ•˜๋Š” ์ˆซ์ž order๊ฐ€ ๋งค๊ฐœ๋ณ€์ˆ˜๋กœ ์ฃผ์–ด์งˆ ๋•Œ, ๋จธ์“ฑ์ด๊ฐ€ ์ณ์•ผํ•  ๋ฐ•์ˆ˜ ํšŸ์ˆ˜๋ฅผ return ํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์™„์„ฑํ•ด๋ณด์„ธ์š”. Restrictions. 1 ≤ order ≤ 1,000,000 Input/Output Example ์ž…์ถœ๋ ฅ ์˜ˆ #1 3์€ 3์ด 1๊ฐœ ์žˆ์œผ๋ฏ€๋กœ 1์„ ์ถœ๋ ฅํ•ฉ๋‹ˆ๋‹ค. ์ž…์ถœ๋ ฅ ์˜ˆ #2 29423์€ 3์ด 1๊ฐœ, 9๊ฐ€ 1๊ฐœ ์žˆ์œผ๋ฏ€๋กœ 2๋ฅผ ์ถœ๋ ฅํ•ฉ๋‹ˆ๋‹ค. My solution function solution(order) { const array = order.toS..

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค/JS] ์ ์˜ ์œ„์น˜ ๊ตฌํ•˜๊ธฐ

Problem Description ์ค‘์•™๊ฐ’์€ ์–ด๋–ค ์ฃผ์–ด์ง„ ๊ฐ’๋“ค์„ ํฌ๊ธฐ์˜ ์ˆœ์„œ๋Œ€๋กœ ์ •๋ ฌํ–ˆ์„ ๋•Œ ๊ฐ€์žฅ ์ค‘์•™์— ์œ„์น˜ํ•˜๋Š” ๊ฐ’์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค. ์˜ˆ๋ฅผ ๋“ค์–ด 1, 2, 7, 10, 11์˜ ์ค‘์•™๊ฐ’์€ 7์ž…๋‹ˆ๋‹ค. ์ •์ˆ˜ ๋ฐฐ์—ด array๊ฐ€ ๋งค๊ฐœ๋ณ€์ˆ˜๋กœ ์ฃผ์–ด์งˆ ๋•Œ, ์ค‘์•™๊ฐ’์„ return ํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์™„์„ฑํ•ด๋ณด์„ธ์š”. Restrictions. array์˜ ๊ธธ์ด๋Š” ํ™€์ˆ˜์ž…๋‹ˆ๋‹ค. 0 0) { return 1 } else if (dot[0] < 0 && dot[1] < 0) { return 3 } else { return 4 } } Another solutions function solution(dot) { const [num,num2] = dot; con..

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค/JS] ์ค‘์•™๊ฐ’ ๊ตฌํ•˜๊ธฐ

Problem Description ์ค‘์•™๊ฐ’์€ ์–ด๋–ค ์ฃผ์–ด์ง„ ๊ฐ’๋“ค์„ ํฌ๊ธฐ์˜ ์ˆœ์„œ๋Œ€๋กœ ์ •๋ ฌํ–ˆ์„ ๋•Œ ๊ฐ€์žฅ ์ค‘์•™์— ์œ„์น˜ํ•˜๋Š” ๊ฐ’์„ ์˜๋ฏธํ•ฉ๋‹ˆ๋‹ค. ์˜ˆ๋ฅผ ๋“ค์–ด 1, 2, 7, 10, 11์˜ ์ค‘์•™๊ฐ’์€ 7์ž…๋‹ˆ๋‹ค. ์ •์ˆ˜ ๋ฐฐ์—ด array๊ฐ€ ๋งค๊ฐœ๋ณ€์ˆ˜๋กœ ์ฃผ์–ด์งˆ ๋•Œ, ์ค‘์•™๊ฐ’์„ return ํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์™„์„ฑํ•ด๋ณด์„ธ์š”. Restrictions. array์˜ ๊ธธ์ด๋Š” ํ™€์ˆ˜์ž…๋‹ˆ๋‹ค. 0 < array์˜ ๊ธธ์ด < 100 -1,000

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค/JS] ๊ฐ€์žฅ ํฐ ์ˆ˜ ์ฐพ๊ธฐ

Problem Description ์ •์ˆ˜ ๋ฐฐ์—ด array๊ฐ€ ๋งค๊ฐœ๋ณ€์ˆ˜๋กœ ์ฃผ์–ด์งˆ ๋•Œ, ๊ฐ€์žฅ ํฐ ์ˆ˜์™€ ๊ทธ ์ˆ˜์˜ ์ธ๋ฑ์Šค๋ฅผ ๋‹ด์€ ๋ฐฐ์—ด์„ return ํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์™„์„ฑํ•ด๋ณด์„ธ์š”. Restrictions. 1 ≤ array์˜ ๊ธธ์ด ≤ 100 0 ≤ array ์›์†Œ ≤ 1,000 array์— ์ค‘๋ณต๋œ ์ˆซ์ž๋Š” ์—†์Šต๋‹ˆ๋‹ค. Input/Output Example ์ž…์ถœ๋ ฅ ์˜ˆ #1 1, 8, 3 ์ค‘ ๊ฐ€์žฅ ํฐ ์ˆ˜๋Š” 8์ด๊ณ  ์ธ๋ฑ์Šค 1์— ์žˆ์Šต๋‹ˆ๋‹ค. ์ž…์ถœ๋ ฅ ์˜ˆ #2 9, 10, 11, 8 ์ค‘ ๊ฐ€์žฅ ํฐ ์ˆ˜๋Š” 11์ด๊ณ  ์ธ๋ฑ์Šค 2์— ์žˆ์Šต๋‹ˆ๋‹ค. My solution function solution(array) { var answer = []; answer.push(Math.max(...array)) answer.push(arra..

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค/JS] ์ง์ˆ˜๋Š” ์‹ซ์–ด์š”

Problem Description ์ •์ˆ˜ n์ด ๋งค๊ฐœ๋ณ€์ˆ˜๋กœ ์ฃผ์–ด์งˆ ๋•Œ, n ์ดํ•˜์˜ ํ™€์ˆ˜๊ฐ€ ์˜ค๋ฆ„์ฐจ์ˆœ์œผ๋กœ ๋‹ด๊ธด ๋ฐฐ์—ด์„ returnํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์™„์„ฑํ•ด์ฃผ์„ธ์š”. Restrictions 1 ≤ n ≤ 100 Input/Output Example ์ž…์ถœ๋ ฅ ์˜ˆ #1 10 ์ดํ•˜์˜ ํ™€์ˆ˜๊ฐ€ ๋‹ด๊ธด ๋ฐฐ์—ด [1, 3, 5, 7, 9]๋ฅผ returnํ•ฉ๋‹ˆ๋‹ค. ์ž…์ถœ๋ ฅ ์˜ˆ #2 15 ์ดํ•˜์˜ ํ™€์ˆ˜๊ฐ€ ๋‹ด๊ธด ๋ฐฐ์—ด [1, 3, 5, 7, 9, 11, 13, 15]๋ฅผ returnํ•ฉ๋‹ˆ๋‹ค. My solution function solution(n) { let array = []; let i for (i = 0; i x%2 == 1) } Another solutions function solution(n) { var answer = [..

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค/JS] ๋จธ์“ฑ์ด๋ณด๋‹ค ํ‚ค ํฐ ์‚ฌ๋žŒ

Problem Description ๋‘ ๋ฐฐ์—ด์ด ์–ผ๋งˆ๋‚˜ ์œ ์‚ฌํ•œ์ง€ ํ™•์ธํ•ด๋ณด๋ ค๊ณ  ํ•ฉ๋‹ˆ๋‹ค. ๋ฌธ์ž์—ด ๋ฐฐ์—ด s1๊ณผ s2๊ฐ€ ์ฃผ์–ด์งˆ ๋•Œ ๊ฐ™์€ ์›์†Œ์˜ ๊ฐœ์ˆ˜๋ฅผ returnํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์™„์„ฑํ•ด์ฃผ์„ธ์š”.๋จธ์“ฑ์ด๋Š” ํ•™๊ต์—์„œ ํ‚ค ์ˆœ์œผ๋กœ ์ค„์„ ์„ค ๋•Œ ๋ช‡ ๋ฒˆ์งธ๋กœ ์„œ์•ผ ํ•˜๋Š”์ง€ ๊ถ๊ธˆํ•ด์กŒ์Šต๋‹ˆ๋‹ค. ๋จธ์“ฑ์ด๋„ค ๋ฐ˜ ์นœ๊ตฌ๋“ค์˜ ํ‚ค๊ฐ€ ๋‹ด๊ธด ์ •์ˆ˜ ๋ฐฐ์—ด array์™€ ๋จธ์“ฑ์ด์˜ ํ‚ค height๊ฐ€ ๋งค๊ฐœ๋ณ€์ˆ˜๋กœ ์ฃผ์–ด์งˆ ๋•Œ, ๋จธ์“ฑ์ด๋ณด๋‹ค ํ‚ค ํฐ ์‚ฌ๋žŒ ์ˆ˜๋ฅผ return ํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์™„์„ฑํ•ด๋ณด์„ธ์š”. Restrictions 1 ≤ array์˜ ๊ธธ์ด ≤ 100 1 ≤ height ≤ 200 1 ≤ array์˜ ์›์†Œ ≤ 200 Input/Output Example ์ž…์ถœ๋ ฅ ์˜ˆ #1 149, 180, 192, 170 ์ค‘ ๋จธ์“ฑ์ด๋ณด๋‹ค ํ‚ค๊ฐ€ ํฐ ์‚ฌ๋žŒ์€ 1..

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค/JS] ์ค‘๋ณต๋œ ์ˆซ์ž ๊ฐœ์ˆ˜

Problem Description ์ •์ˆ˜๊ฐ€ ๋‹ด๊ธด ๋ฐฐ์—ด array์™€ ์ •์ˆ˜ n์ด ๋งค๊ฐœ๋ณ€์ˆ˜๋กœ ์ฃผ์–ด์งˆ ๋•Œ, array์— n์ด ๋ช‡ ๊ฐœ ์žˆ๋Š” ์ง€๋ฅผ return ํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์™„์„ฑํ•ด๋ณด์„ธ์š”. Restrictions 1 ≤ array์˜ ๊ธธ์ด ≤ 100 0 ≤ array์˜ ์›์†Œ ≤ 1,000 0 ≤ n ≤ 1,000 Input/Output Example ์ž…์ถœ๋ ฅ ์˜ˆ #1 [1, 1, 2, 3, 4, 5] ์—๋Š” 1์ด 2๊ฐœ ์žˆ์Šต๋‹ˆ๋‹ค. ์ž…์ถœ๋ ฅ ์˜ˆ #2 [0, 2, 3, 4] ์—๋Š” 1์ด 0๊ฐœ ์žˆ์Šต๋‹ˆ๋‹ค. My solution function solution(array, n) { return array.filter((x) => x == n).length } https://school.programmers.co.kr/l..

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