41 lines
1.5 KiB
Java
41 lines
1.5 KiB
Java
|
// [문제 링크]: https://school.programmers.co.kr/learn/courses/30/lessons/49994#
|
||
|
|
|
||
|
|
import java.util.*;
|
||
|
|
import java.lang.StringBuilder;
|
||
|
|
class Solution {
|
||
|
|
public int solution(String dirs) {
|
||
|
|
int answer = 0;
|
||
|
|
int[] pos = {0,0};
|
||
|
|
char[] tt = {'L','R','U','D'};
|
||
|
|
int[][] ppos = {{-1,0},{1,0},{0,1},{0,-1}};
|
||
|
|
HashSet<String> hs = new HashSet<>();
|
||
|
|
for(char a : dirs.toCharArray()){
|
||
|
|
for(int x = 0; x < 4; x++){
|
||
|
|
if(a == tt[x]) {
|
||
|
|
if(Math.abs(pos[0]+ppos[x][0])<=5&&Math.abs(pos[1]+ppos[x][1])<=5) {
|
||
|
|
StringBuilder sb = new StringBuilder();
|
||
|
|
int aa = pos[0];
|
||
|
|
int b = pos[1];
|
||
|
|
pos[0] += ppos[x][0];
|
||
|
|
pos[1] += ppos[x][1];
|
||
|
|
if(aa > pos[0] || b > pos[1]){
|
||
|
|
sb.append(aa);
|
||
|
|
sb.append(pos[0]);
|
||
|
|
sb.append(b);
|
||
|
|
sb.append(pos[1]);
|
||
|
|
} else{
|
||
|
|
sb.append(pos[0]);
|
||
|
|
sb.append(aa);
|
||
|
|
sb.append(pos[1]);
|
||
|
|
sb.append(b);
|
||
|
|
}
|
||
|
|
|
||
|
|
hs.add(sb.toString());
|
||
|
|
//System.out.println(pos[0]+" "+pos[1]);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return hs.size();
|
||
|
|
}
|
||
|
|
}
|