๐Ÿ˜‰/์ฝ”๋”ฉํ…Œ์ŠคํŠธ 15

[์•Œ๊ณ ๋ฆฌ์ฆ˜] ํ”„๋ฆฐํ„ฐ ํ (๋ฐฑ์ค€, 1966)

๋ฌธ์ œ 1966๋ฒˆ: ํ”„๋ฆฐํ„ฐ ํ ์—ฌ๋Ÿฌ๋ถ„๋„ ์•Œ๋‹ค์‹œํ”ผ ์—ฌ๋Ÿฌ๋ถ„์˜ ํ”„๋ฆฐํ„ฐ ๊ธฐ๊ธฐ๋Š” ์—ฌ๋Ÿฌ๋ถ„์ด ์ธ์‡„ํ•˜๊ณ ์ž ํ•˜๋Š” ๋ฌธ์„œ๋ฅผ ์ธ์‡„ ๋ช…๋ น์„ ๋ฐ›์€ โ€˜์ˆœ์„œ๋Œ€๋กœโ€™, ์ฆ‰ ๋จผ์ € ์š”์ฒญ๋œ ๊ฒƒ์„ ๋จผ์ € ์ธ์‡„ํ•œ๋‹ค. ์—ฌ๋Ÿฌ ๊ฐœ์˜ ๋ฌธ์„œ๊ฐ€ ์Œ“์ธ๋‹ค๋ฉด Queue ์ž๋ฃŒ๊ตฌ์กฐ์— www.acmicpc.net ํ’€์ด GitHub - ruhz3/coding-test: To prepare for coding test To prepare for coding test. Contribute to ruhz3/coding-test development by creating an account on GitHub. github.com import java.io.BufferedReader; import java.io.IOException; import java.io.InputStrea..

[์•Œ๊ณ ๋ฆฌ์ฆ˜] ์˜ค๋ชฉ (๋ฐฑ์ค€, 2615)

๋ฌธ์ œ https://www.acmicpc.net/problem/2615 2615๋ฒˆ: ์˜ค๋ชฉ ์˜ค๋ชฉ์€ ๋ฐ”๋‘‘ํŒ์— ๊ฒ€์€ ๋ฐ”๋‘‘์•Œ๊ณผ ํฐ ๋ฐ”๋‘‘์•Œ์„ ๊ต๋Œ€๋กœ ๋†“์•„์„œ ๊ฒจ๋ฃจ๋Š” ๊ฒŒ์ž„์ด๋‹ค. ๋ฐ”๋‘‘ํŒ์—๋Š” 19๊ฐœ์˜ ๊ฐ€๋กœ์ค„๊ณผ 19๊ฐœ์˜ ์„ธ๋กœ์ค„์ด ๊ทธ๋ ค์ ธ ์žˆ๋Š”๋ฐ ๊ฐ€๋กœ์ค„์€ ์œ„์—์„œ๋ถ€ํ„ฐ ์•„๋ž˜๋กœ 1๋ฒˆ, 2๋ฒˆ, ... ,19๋ฒˆ์˜ ๋ฒˆํ˜ธ www.acmicpc.net ํ’€์ด import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.StringTokenizer; public class Main { // * ๋ฐฉํ–ฅ์€ ์ˆœ์„œ๋Œ€๋กœ โ†“, โ†’, โ†˜, โ†— private static final int[] rowDir = {1, 0, 1,..

[์•Œ๊ณ ๋ฆฌ์ฆ˜] ํฌ๋กœ์•„ํ‹ฐ์•„ ์•ŒํŒŒ๋ฒณ (๋ฐฑ์ค€, 2941)

๋ฌธ์ œ 2941๋ฒˆ: ํฌ๋กœ์•„ํ‹ฐ์•„ ์•ŒํŒŒ๋ฒณ ์˜ˆ์ „์—๋Š” ์šด์˜์ฒด์ œ์—์„œ ํฌ๋กœ์•„ํ‹ฐ์•„ ์•ŒํŒŒ๋ฒณ์„ ์ž…๋ ฅํ•  ์ˆ˜๊ฐ€ ์—†์—ˆ๋‹ค. ๋”ฐ๋ผ์„œ, ๋‹ค์Œ๊ณผ ๊ฐ™์ด ํฌ๋กœ์•„ํ‹ฐ์•„ ์•ŒํŒŒ๋ฒณ์„ ๋ณ€๊ฒฝํ•ด์„œ ์ž…๋ ฅํ–ˆ๋‹ค. ํฌ๋กœ์•„ํ‹ฐ์•„ ์•ŒํŒŒ๋ฒณ ๋ณ€๊ฒฝ ฤ c= ฤ‡ c- dลพ dz= ฤ‘ d- lj lj nj nj ลก s= ลพ z= www.acmicpc.net ํ’€์ด ruhz3/CodingTest To prepare for coding test. Contribute to ruhz3/CodingTest development by creating an account on GitHub. github.com #include #include #include using namespace std; string word; static string croats[8] = { "c=", "c-",..

[์•Œ๊ณ ๋ฆฌ์ฆ˜] ๋ฑ€ (๋ฐฑ์ค€, 3190)

๋ฌธ์ œ 3190๋ฒˆ: ๋ฑ€ 'Dummy' ๋ผ๋Š” ๋„์Šค๊ฒŒ์ž„์ด ์žˆ๋‹ค. ์ด ๊ฒŒ์ž„์—๋Š” ๋ฑ€์ด ๋‚˜์™€์„œ ๊ธฐ์–ด๋‹ค๋‹ˆ๋Š”๋ฐ, ์‚ฌ๊ณผ๋ฅผ ๋จน์œผ๋ฉด ๋ฑ€ ๊ธธ์ด๊ฐ€ ๋Š˜์–ด๋‚œ๋‹ค. ๋ฑ€์ด ์ด๋ฆฌ์ €๋ฆฌ ๊ธฐ์–ด๋‹ค๋‹ˆ๋‹ค๊ฐ€ ๋ฒฝ ๋˜๋Š” ์ž๊ธฐ์ž์‹ ์˜ ๋ชธ๊ณผ ๋ถ€๋”ชํžˆ๋ฉด ๊ฒŒ์ž„์ด ๋๋‚œ๋‹ค. ๊ฒŒ์ž„ www.acmicpc.net ํ’€์ด ruhz3/CodingTest To prepare for coding test. Contribute to ruhz3/CodingTest development by creating an account on GitHub. github.com #include #include #include using namespace std; int N; int appleNum; int rotateNum; int map[101][101]; vector Snake; queue Ro..

[์•Œ๊ณ ๋ฆฌ์ฆ˜] โšพ (๋ฐฑ์ค€, 17281)

๋ฌธ์ œ 17281๋ฒˆ: โšพ โšพ๋Š” 9๋ช…์œผ๋กœ ์ด๋ฃจ์–ด์ง„ ๋‘ ํŒ€์ด ๊ณต๊ฒฉ๊ณผ ์ˆ˜๋น„๋ฅผ ๋ฒˆ๊ฐˆ์•„ ํ•˜๋Š” ๊ฒŒ์ž„์ด๋‹ค. ํ•˜๋‚˜์˜ ์ด๋‹์€ ๊ณต๊ฒฉ๊ณผ ์ˆ˜๋น„๋กœ ์ด๋ฃจ์–ด์ ธ ์žˆ๊ณ , ์ด N์ด๋‹ ๋™์•ˆ ๊ฒŒ์ž„์„ ์ง„ํ–‰ํ•ด์•ผ ํ•œ๋‹ค. ํ•œ ์ด๋‹์— 3์•„์›ƒ์ด ๋ฐœ์ƒํ•˜๋ฉด ์ด๋‹์ด ์ข… www.acmicpc.net ํ’€์ด ruhz3/CodingTest To prepare for coding test. Contribute to ruhz3/CodingTest development by creating an account on GitHub. github.com #include #include #include #include using namespace std; int N; int hitTable[50][9]; int entry[9]; vector field; int findMaxS..

[์•Œ๊ณ ๋ฆฌ์ฆ˜] 2048(Easy) (๋ฐฑ์ค€, 12100)

๋ฌธ์ œ 12100๋ฒˆ: 2048 (Easy) ์ฒซ์งธ ์ค„์— ๋ณด๋“œ์˜ ํฌ๊ธฐ N (1 โ‰ค N โ‰ค 20)์ด ์ฃผ์–ด์ง„๋‹ค. ๋‘˜์งธ ์ค„๋ถ€ํ„ฐ N๊ฐœ์˜ ์ค„์—๋Š” ๊ฒŒ์ž„ํŒ์˜ ์ดˆ๊ธฐ ์ƒํƒœ๊ฐ€ ์ฃผ์–ด์ง„๋‹ค. 0์€ ๋นˆ ์นธ์„ ๋‚˜ํƒ€๋‚ด๋ฉฐ, ์ด์™ธ์˜ ๊ฐ’์€ ๋ชจ๋‘ ๋ธ”๋ก์„ ๋‚˜ํƒ€๋‚ธ๋‹ค. ๋ธ”๋ก์— ์“ฐ์—ฌ ์žˆ๋Š” ์ˆ˜๋Š” 2 www.acmicpc.net ํ’€์ด ruhz3/CodingTest To prepare for coding test. Contribute to ruhz3/CodingTest development by creating an account on GitHub. github.com #include #include #include using namespace std; int board[20][20] = { 0 }; int N; int maxNum = 0; // ์ตœ๋Œ€๊ฐ’ ์ฐพ..

[์•Œ๊ณ ๋ฆฌ์ฆ˜] ์—ฐ๊ตฌ์†Œ (๋ฐฑ์ค€, 14502)

๋ฌธ์ œ 14502๋ฒˆ: ์—ฐ๊ตฌ์†Œ ์ธ์ฒด์— ์น˜๋ช…์ ์ธ ๋ฐ”์ด๋Ÿฌ์Šค๋ฅผ ์—ฐ๊ตฌํ•˜๋˜ ์—ฐ๊ตฌ์†Œ์—์„œ ๋ฐ”์ด๋Ÿฌ์Šค๊ฐ€ ์œ ์ถœ๋˜์—ˆ๋‹ค. ๋‹คํ–‰ํžˆ ๋ฐ”์ด๋Ÿฌ์Šค๋Š” ์•„์ง ํผ์ง€์ง€ ์•Š์•˜๊ณ , ๋ฐ”์ด๋Ÿฌ์Šค์˜ ํ™•์‚ฐ์„ ๋ง‰๊ธฐ ์œ„ํ•ด์„œ ์—ฐ๊ตฌ์†Œ์— ๋ฒฝ์„ ์„ธ์šฐ๋ ค๊ณ  ํ•œ๋‹ค. ์—ฐ๊ตฌ์†Œ๋Š” ํฌ www.acmicpc.net ํ’€์ด ruhz3/CodingTest To prepare for coding test. Contribute to ruhz3/CodingTest development by creating an account on GitHub. github.com #include #include #include using namespace std; int row, col; int map[8][8]; bool check[8][8]; /*๊ฐ์—ผ*/ void infection(int R, int C..

[์•Œ๊ณ ๋ฆฌ์ฆ˜] ์ •์ˆ˜ ์‚ผ๊ฐํ˜• (๋ฐฑ์ค€, 1932)

๋ฌธ์ œ 1932๋ฒˆ: ์ •์ˆ˜ ์‚ผ๊ฐํ˜• ์ฒซ์งธ ์ค„์— ์‚ผ๊ฐํ˜•์˜ ํฌ๊ธฐ n(1 โ‰ค n โ‰ค 500)์ด ์ฃผ์–ด์ง€๊ณ , ๋‘˜์งธ ์ค„๋ถ€ํ„ฐ n+1๋ฒˆ์งธ ์ค„๊นŒ์ง€ ์ •์ˆ˜ ์‚ผ๊ฐํ˜•์ด ์ฃผ์–ด์ง„๋‹ค. www.acmicpc.net ํ’€์ด ruhz3/CodingTest To prepare for coding test. Contribute to ruhz3/CodingTest development by creating an account on GitHub. github.com #include #include #include using namespace std; int map[500][500]; int cache[501][501]; int N; int findMaxWay(int row, int col) { int &ret = cache[row][col]; // ๊ธฐ..

[์•Œ๊ณ ๋ฆฌ์ฆ˜] N-Queen (๋ฐฑ์ค€, 9663)

๋ฌธ์ œ 9663๋ฒˆ: N-Queen N-Queen ๋ฌธ์ œ๋Š” ํฌ๊ธฐ๊ฐ€ N ร— N์ธ ์ฒด์ŠคํŒ ์œ„์— ํ€ธ N๊ฐœ๋ฅผ ์„œ๋กœ ๊ณต๊ฒฉํ•  ์ˆ˜ ์—†๊ฒŒ ๋†“๋Š” ๋ฌธ์ œ์ด๋‹ค. N์ด ์ฃผ์–ด์กŒ์„ ๋•Œ, ํ€ธ์„ ๋†“๋Š” ๋ฐฉ๋ฒ•์˜ ์ˆ˜๋ฅผ ๊ตฌํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค. www.acmicpc.net ํ’€์ด ruhz3/CodingTest To prepare for coding test. Contribute to ruhz3/CodingTest development by creating an account on GitHub. github.com #include #include using namespace std; // ex) map[4] = 3 : 4์—ด์— ์žˆ๋Š” ํ€ธ์€ 3ํ–‰์— ๋†“์—ฌ ์žˆ์Šต๋‹ˆ๋‹ค. int map[15]; int N; // ์ด ์ž๋ฆฌ์— ํ€ธ์„ ๋†“์•„๋„ ๋ ์ง€ ๊ฒ€์‚ฌ bool c..

[์•Œ๊ณ ๋ฆฌ์ฆ˜] ์นด๋ผ์ถ”๋ฐ”์˜ ๋น ๋ฅธ ๊ณฑ์…ˆ(Karatsuba)

123 ร— 456 = ? ํ‰์†Œ์— ์ผ์ƒ์ ์œผ๋กœ ๊ณ„์‚ฐํ•˜๋˜ ๋ฐฉ๋ฒ•์„ ๋ถ„์„์ ์œผ๋กœ ํ’€์–ด์จ๋ณด๋ฉด ์ด๋ ‡๋‹ค. ์šฐ๋ฆฌ๋Š” ํ‰์†Œ ํ•œ ์ž๋ฆฌ์— 0๋ถ€ํ„ฐ 9๊นŒ์ง€์˜ ์ˆซ์ž๋งŒ ์‚ฌ์šฉํ•˜๋Š” ์‹ญ์ง„๋ฒ•์„ ์‚ฌ์šฉํ•˜๊ธฐ ๋•Œ๋ฌธ์—, ๊ฐ ์ž๋ฆฌ๋ณ„๋กœ ์‹ญ์˜ ์ž๋ฆฌ ์ˆ˜๋Š” ๋‹ค์Œ ์นธ์œผ๋กœ ๋„˜๊ฒจ์ค€๋‹ค(์˜ˆ๋ฅผ ๋“ค์–ด 10์˜ ์ž๋ฆฌ 27์€ (20 + 7)์ด๋ฏ€๋กœ 100์˜ ์ž๋ฆฌ๋กœ 2๋ฅผ ๋„˜๊ฒจ์ค€๋‹ค). (4 * 10000) + (13 * 1000) + (28 * 100) + (27 * 10) + (18 * 1) = (5 * 10000) + (6 * 1000) + (0 * 100) + (8 * 10) + (8 * 1) = 56088 ์ตœ์ข…์ ์œผ๋กœ ๊ฐ’์„ ์ด๋ ‡๊ฒŒ ๊ณ„์‚ฐํ•ด ๋‚ผ ์ˆ˜์žˆ๋‹ค. 456์˜ ๊ฐฏ์ˆ˜๋งŒํผ, 123์˜ ๊ฐ ์›์†Œ(1, 2, 3)๊ณผ ํ•œ ๋ฒˆ์”ฉ ๊ณฑ์…ˆ์—ฐ์‚ฐ์„ ํ•ด์•ผํ•จ์„ ์•Œ ์ˆ˜์žˆ๋‹ค. ๋”ฐ๋ผ์„œ ์ „ํ†ต์ ์ธ ๋ฐฉ๋ฒ•์œผ๋กœ๋Š” ๋งŒ์•ฝ ..