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# COTE | ||
||문제종류|문제명|응시 날짜|채점 결과|재응시예정| | ||
|:-:|:-|:-|:---:|:---:|:-:| | ||
|1|[Greedy](./greedy/)|[예제](./greedy/greedy_ex.js) <br> [연습1](./greedy/greedy_01.js) <br> [연습2](./greedy/greedy_02.js) <br> [연습3](./greedy/greedy_03.js)|22.07.14| O <br> X <br> O <br> O |X <br> O <br> X <br> X| | ||
|1|[Greedy](./greedy/)|[예제](./greedy/greedy_ex.js)<br>[연습1](./greedy/greedy_01.js)<br>[연습2](./greedy/greedy_02.js)<br>[연습3](./greedy/greedy_03.js)|22.07.14|O<br>X<br>O<br>O|X<br>O<br>X<br>X| | ||
|2|[Implementation](./implementation/)|[예제1](./implementation/imple_ex01.js)<br>[예제2](./implementation/imple_ex02.js)<br>[연습1](./implementation/imple_01.js)<br>[연습2](./implementation/imple_02.js)|22.07.15|△<br>△<br>△<br>X|O<br>O<br>O<br>O| |
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'use strict'; | ||
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function solution(n) { | ||
let answer = 0; | ||
const colList = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h']; | ||
const col = colList.indexOf(n[0])+1; | ||
const row = n[1]*1; | ||
const steps = [[-2, 1], [-1, 2], [1, 2], [2, 1], [2,-1], [1,-2], [-1, -2], [-2, -1]]; | ||
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steps.forEach((step) => { | ||
let nx = row + step[0]; | ||
let ny = col + step[1]; | ||
if(nx >= 1 && ny >= 1 && nx <= 8 && ny <= 8) answer++; | ||
}); | ||
return answer; | ||
} | ||
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console.log(solution('a1')); |
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'use strict'; | ||
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function solution(N, M, x, y, d, map) { | ||
// 방문한 위치를 저장할 map | ||
const visitedMap = Array.from(Array(N), () => Array(M).fill(0)); | ||
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visitedMap[x][y] = 1; // 방문 처리 | ||
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// 북, 동, 남, 서 | ||
const dx = [-1, 0, 1, 0]; | ||
const dy = [0, -1, 0, 1]; | ||
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let direction = 0; | ||
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// 왼쪽으로 회전 | ||
function turnLeft() { | ||
direction -= 1; | ||
if(direction == -1) direction = 3; | ||
} | ||
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// 시뮬레이션 | ||
let count = 1; | ||
let turn_time = 0; | ||
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while(1) { | ||
turnLeft(); | ||
let nx = x + dx[direction]; | ||
let ny = y + dy[direction]; | ||
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// 회전 후 정면에 가보지 않은 칸이 존재하는 경우 이동함 | ||
if(visitedMap[nx][ny] === 0 && map[nx][ny] === 0) { | ||
visitedMap[nx][ny] = 1; // 방문 표시 | ||
x = nx; // 현재 위치 저장 | ||
y = ny; // 현재 위치 저장 | ||
count++; | ||
turn_time = 0; | ||
continue; | ||
} else { | ||
turn_time += 1; | ||
} | ||
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// 네 방향 모두 갈 수 없는 경우 | ||
if(turn_time === 4) { | ||
nx = x - dx[direction]; | ||
ny = y - dy[direction]; | ||
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// 뒤로 갈 수 있다면 이동하기 | ||
if (map[nx][ny] === 0) { | ||
x = nx; | ||
y = ny; | ||
} else { | ||
break; | ||
} | ||
turn_time = 0; | ||
} | ||
} | ||
return count; | ||
} | ||
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let map = [[1, 1, 1, 1], | ||
[1, 0, 0, 1], | ||
[1, 1, 0, 1], | ||
[1, 1, 1, 1]]; | ||
console.log(solution(4, 4, 1, 1, 0, map)); |