๐™ฐ๐š•๐š๐š˜๐š›๐š’๐š๐š‘๐š–/๐™ฟ๐š›๐š˜๐š๐š›๐šŠ๐š–๐š–๐šŽ๐š›๐šœ

๋ฌธ์ œ https://school.programmers.co.kr/learn/courses/30/lessons/12981 ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋“œ ์ค‘์‹ฌ์˜ ๊ฐœ๋ฐœ์ž ์ฑ„์šฉ. ์Šคํƒ ๊ธฐ๋ฐ˜์˜ ํฌ์ง€์…˜ ๋งค์นญ. ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค์˜ ๊ฐœ๋ฐœ์ž ๋งž์ถคํ˜• ํ”„๋กœํ•„์„ ๋“ฑ๋กํ•˜๊ณ , ๋‚˜์™€ ๊ธฐ์ˆ  ๊ถํ•ฉ์ด ์ž˜ ๋งž๋Š” ๊ธฐ์—…๋“ค์„ ๋งค์นญ ๋ฐ›์œผ์„ธ์š”. programmers.co.kr ํ’€์ด import java.util.HashSet; class Solution { public int[] solution(int n, String[] list) { int[] answer = new int[2]; HashSet word = new HashSet(); int index = 0; for (int i = 0; i 0 && wor..
๋ฌธ์ œ https://school.programmers.co.kr/learn/courses/30/lessons/12981 ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋“œ ์ค‘์‹ฌ์˜ ๊ฐœ๋ฐœ์ž ์ฑ„์šฉ. ์Šคํƒ ๊ธฐ๋ฐ˜์˜ ํฌ์ง€์…˜ ๋งค์นญ. ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค์˜ ๊ฐœ๋ฐœ์ž ๋งž์ถคํ˜• ํ”„๋กœํ•„์„ ๋“ฑ๋กํ•˜๊ณ , ๋‚˜์™€ ๊ธฐ์ˆ  ๊ถํ•ฉ์ด ์ž˜ ๋งž๋Š” ๊ธฐ์—…๋“ค์„ ๋งค์นญ ๋ฐ›์œผ์„ธ์š”. programmers.co.kr ํ’€์ด ํ‹€๋ฆฌ๋Š” ๊ฒฝ์šฐ๋Š” ๋‘ ๊ฐ€์ง€์ด๋‹ค. 1๏ธโƒฃ ์ด๋ฏธ ๋งํ•œ ๋‹จ์–ด๋ฅผ ๋‹ค์‹œ ๋งํ•˜๋Š” ์‚ฌ๋žŒ 2๏ธโƒฃ ๋๋ง์— ์ด์–ด ๋งํ•˜์ง€ ์•Š์€ ์‚ฌ๋žŒ ์ด ๋‘ ๊ฐ€์ง€๋ฅผ ์ฒดํฌํ•˜๋ฉด์„œ ํ‹€๋ฆฐ ์‚ฌ๋žŒ์„ ์žก์•„๋‚ด๋ฉด(?) ๋œ๋‹ค. import java.util.HashSet; class Solution { public int[] solution(int n, String[] list) { int[] answer = new int[2]; HashSet..
๋ฌธ์ œ https://school.programmers.co.kr/learn/courses/30/lessons/147355 ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋“œ ์ค‘์‹ฌ์˜ ๊ฐœ๋ฐœ์ž ์ฑ„์šฉ. ์Šคํƒ ๊ธฐ๋ฐ˜์˜ ํฌ์ง€์…˜ ๋งค์นญ. ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค์˜ ๊ฐœ๋ฐœ์ž ๋งž์ถคํ˜• ํ”„๋กœํ•„์„ ๋“ฑ๋กํ•˜๊ณ , ๋‚˜์™€ ๊ธฐ์ˆ  ๊ถํ•ฉ์ด ์ž˜ ๋งž๋Š” ๊ธฐ์—…๋“ค์„ ๋งค์นญ ๋ฐ›์œผ์„ธ์š”. programmers.co.kr ํ’€์ด 9์›”๋‹ฌ์— ํ’€์—ˆ๋˜ ๋ฌธ์ œ์ด๋‹ค. ์ž˜ํ•œ์  ์ฒ˜์Œ์—๋Š” ํ•œ๊ธ€์ž์”ฉ ์ž˜๋ผ์„œ ๊ทธ๊ฑธ ๋‹ค์‹œ string ์— ๋„ฃ์–ด์„œ ๊ทธ๊ฑธ ๋‹ค์‹œ ์ •์ˆ˜๋กœ ๋ฐ”๊ฟ”์„œ ๋น„๊ตํ–ˆ๋‹ค๊ฐ€ ์•„ ๋งž๋‹ค substring์ด ์žˆ๋Š”๊ฑธ ๋‹ค์‹œ ์ž๊ฐํ•˜๊ณ  ์ฝ”๋“œ ๊ธธ์ด๋ฅผ ์ฃผ์ผ ์ˆ˜ ์žˆ์—ˆ๋‹ค. ์•„์‰ฌ์šด์  ๋Ÿฐํƒ€์ž„์—๋Ÿฌ๊ฐ€ ๋– ์„œ ๊ณ ๋ฏผ์„ ํ•œ ํ›„ ํžŒํŠธ๋ฅผ ๋ดค๋Š”๋ฐ p์˜ ๊ธธ์ด๊ฐ€ 1์ด์ƒ 18์ดํ•˜๋ผ๋Š” ๋ง์„ ๋“ฃ๊ณ  ์•„....ํ•˜..! long์ด๊ตฌ๋‚˜ ํ•˜๊ณ  ๊นจ๋‹ฌ์Œ๊ณผ ๋™์‹œ์— ์ˆ˜์ •ํ•ด์„œ ๋ƒˆ๋”๋‹ˆ ํ†ต๊ณผ๊ฐ€ ๋..
๋ฌธ์ œ https://school.programmers.co.kr/learn/courses/30/lessons/134240 ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋“œ ์ค‘์‹ฌ์˜ ๊ฐœ๋ฐœ์ž ์ฑ„์šฉ. ์Šคํƒ ๊ธฐ๋ฐ˜์˜ ํฌ์ง€์…˜ ๋งค์นญ. ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค์˜ ๊ฐœ๋ฐœ์ž ๋งž์ถคํ˜• ํ”„๋กœํ•„์„ ๋“ฑ๋กํ•˜๊ณ , ๋‚˜์™€ ๊ธฐ์ˆ  ๊ถํ•ฉ์ด ์ž˜ ๋งž๋Š” ๊ธฐ์—…๋“ค์„ ๋งค์นญ ๋ฐ›์œผ์„ธ์š”. programmers.co.kr ๋ฌธ์ œ๊ฐ€.. ๊ธธ๋‹ค ๐Ÿ˜ฎ ๋‚˜์˜ ๋‹ต class Solution { public String solution(int[] food) { String answer = ""; for(int i=0;i 1){ for(int j=0; j
๋ฌธ์ œ ์„ค๋ช… https://school.programmers.co.kr/learn/courses/30/lessons/132267 ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค ์ฝ”๋“œ ์ค‘์‹ฌ์˜ ๊ฐœ๋ฐœ์ž ์ฑ„์šฉ. ์Šคํƒ ๊ธฐ๋ฐ˜์˜ ํฌ์ง€์…˜ ๋งค์นญ. ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค์˜ ๊ฐœ๋ฐœ์ž ๋งž์ถคํ˜• ํ”„๋กœํ•„์„ ๋“ฑ๋กํ•˜๊ณ , ๋‚˜์™€ ๊ธฐ์ˆ  ๊ถํ•ฉ์ด ์ž˜ ๋งž๋Š” ๊ธฐ์—…๋“ค์„ ๋งค์นญ ๋ฐ›์œผ์„ธ์š”. programmers.co.kr ์ฝ”๋“œ class Solution { public int solution(int a, int b, int n) { int answer = 0; while(n >= a){ answer += (n/a)*b; n = (n%a) + (n/a)*b; } return answer; } }
๋ฌธ์ œ ์„ค๋ช… - ์ˆซ์ž ๋ฌธ์ž์—ด๊ณผ ์˜๋‹จ์–ด ์ฝ”๋“œ ์ฒ˜์Œ ํ’€์—ˆ์„ ๋•Œ class Solution { public int solution(String s) { String sanswer = ""; String[] number = s.split(""); for(int i=0; i
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'๐™ฐ๐š•๐š๐š˜๐š›๐š’๐š๐š‘๐š–/๐™ฟ๐š›๐š˜๐š๐š›๐šŠ๐š–๐š–๐šŽ๐š›๐šœ' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๊ธ€ ๋ชฉ๋ก