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Solution_1226_미로1_DFS.java
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Solution_1226_미로1_DFS.java
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package SWexpert;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.StringReader;
/**
* @author mozy
* @since 2020. 12. 20.
* @see https://swexpertacademy.com/main/code/problem/problemDetail.do?contestProbId=AV14vXUqAGMCFAYD
* @mem 23,668
* @time 115
* @caution
* dfs 로 문제 풀음
*/
public class Solution_1226_미로1_DFS {
static int N = 16;
static int result;
static int [][] map;
static boolean [][] visited;
static int [][] dir = {{-1, 0}, {0, -1}, {1, 0}, {0, 1}};
static StringBuilder sb = new StringBuilder();
public static void main(String[] args) throws Exception {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
in = new BufferedReader(new StringReader(src));
for(int i = 1; i < 11; i++) {
map = new int [N][N];
visited = new boolean [N][N];
int sRow = 0;
int sColumn = 0;
in.readLine();
// input
for(int row = 0; row < N; row++) {
String line = in.readLine();
for(int column = 0; column < N; column++) {
map[row][column] = line.charAt(column) - 48;
if(map[row][column] == 2) {
sRow = row;
sColumn = column;
}
}
}
// run
result = 0;
dfs(sRow, sColumn);
sb.append("#" + i + " " + result).append("\n");
} // TC for
System.out.println(sb);
} // main
static void dfs(int row, int column) {
if(map[row][column] == 3) {
result = 1;
return;
}
if(map[row][column] == 1) {
return;
}
if(visited[row][column]) {
return;
}
visited[row][column] = true;
for(int d = 0; d < 4; d++) {
int _row = row + dir[d][0];
int _column = column + dir[d][1];
if(isIn(_row, _column)) {
dfs(_row, _column);
}
}
}
static boolean isIn(int row, int column) {
return 0 <= row && row < N && 0 <= column && column < N;
}
static void print() {
for(int row = 0; row < N; row++) {
for(int column = 0; column < N; column++) {
System.out.print(map[row][column] + " ");
}
System.out.println();
}
System.out.println();
}
static String src = "1\n" +
"1111111111111111\n" +
"1210000000100011\n" +
"1010101110101111\n" +
"1000100010100011\n" +
"1111111010101011\n" +
"1000000010101011\n" +
"1011111110111011\n" +
"1010000010001011\n" +
"1010101111101011\n" +
"1010100010001011\n" +
"1010111010111011\n" +
"1010001000100011\n" +
"1011101111101011\n" +
"1000100000001311\n" +
"1111111111111111\n" +
"1111111111111111\n" +
"2\n" +
"1111111111111111\n" +
"1200000010000011\n" +
"1011111011111011\n" +
"1000001010000011\n" +
"1110101010111011\n" +
"1010101010100011\n" +
"1011111010111111\n" +
"1000001010000011\n" +
"1011101011111011\n" +
"1010101010000011\n" +
"1010101010111111\n" +
"1010100000130011\n" +
"1010111111111011\n" +
"1000000000000011\n" +
"1111111111111111\n" +
"1111111111111111\n" +
"3\n" +
"1111111111111111\n" +
"1210001000100011\n" +
"1010101010101011\n" +
"1000100010101011\n" +
"1011111110101011\n" +
"1000001010101011\n" +
"1111101010101011\n" +
"1010001000001011\n" +
"1010111111111011\n" +
"1010000000100011\n" +
"1011111110101111\n" +
"1000001010100011\n" +
"1011101010111011\n" +
"1000100000130011\n" +
"1111111111111111\n" +
"1111111111111111\n" +
"4\n" +
"1111111111111111\n" +
"1200100000000011\n" +
"1011101110111011\n" +
"1000001010101011\n" +
"1111111011101011\n" +
"1000100010000011\n" +
"1010101010111111\n" +
"1010001010001011\n" +
"1011111011101011\n" +
"1000100010100011\n" +
"1110101110111111\n" +
"1010100000130011\n" +
"1010111111111011\n" +
"1000000000000011\n" +
"1111111111111111\n" +
"1111111111111111\n" +
"5\n" +
"1111111111111111\n" +
"1210000000100011\n" +
"1010111011101011\n" +
"1010100010001011\n" +
"1011101010111011\n" +
"1000001010001011\n" +
"1111111011111011\n" +
"1000100010000011\n" +
"1011101010111011\n" +
"1010001000001011\n" +
"1010101011111111\n" +
"1010101000000011\n" +
"1010101110111011\n" +
"1000100010001311\n" +
"1111111111111111\n" +
"1111111111111111\n" +
"6\n" +
"1111111111111111\n" +
"1210001010000011\n" +
"1010101010111111\n" +
"1010100000100011\n" +
"1010111111101011\n" +
"1000100000001011\n" +
"1110101111111011\n" +
"1000100000001011\n" +
"1011101111101011\n" +
"1000101000101011\n" +
"1110101010111011\n" +
"1010100010100011\n" +
"1010111110101111\n" +
"1000000000100311\n" +
"1111111111111111\n" +
"1111111111111111\n" +
"7\n" +
"1111111111111111\n" +
"1210000000000011\n" +
"1011101111111011\n" +
"1000101010000011\n" +
"1110101010111011\n" +
"1000001000101011\n" +
"1010111111101111\n" +
"1010100000100011\n" +
"1011101110101111\n" +
"1000001000100011\n" +
"1111111011111011\n" +
"1000100010001011\n" +
"1010101110111011\n" +
"1010001300000011\n" +
"1111111111111111\n" +
"1111111111111111\n" +
"8\n" +
"1111111111111111\n" +
"1200000010000011\n" +
"1111111010111011\n" +
"1000000010001011\n" +
"1011111111111011\n" +
"1010000000000011\n" +
"1010111111101011\n" +
"1010000000001011\n" +
"1010111011111011\n" +
"1000100010001011\n" +
"1111111011101011\n" +
"1000001000100011\n" +
"1110111110101011\n" +
"1000000000101311\n" +
"1111111111111111\n" +
"1111111111111111\n" +
"9\n" +
"1111111111111111\n" +
"1200000000001011\n" +
"1011111111101011\n" +
"1000000010001011\n" +
"1111111010111011\n" +
"1000100010000011\n" +
"1011101111111011\n" +
"1010001000001011\n" +
"1010111011101011\n" +
"1010000010101311\n" +
"1011111110101111\n" +
"1000100000100011\n" +
"1011101011111011\n" +
"1000001000000011\n" +
"1111111111111111\n" +
"1111111111111111\n" +
"10\n" +
"1111111111111111\n" +
"1200001000100011\n" +
"1111101110101011\n" +
"1000100010001011\n" +
"1011101111101111\n" +
"1000100000000011\n" +
"1110111111101011\n" +
"1000000010001011\n" +
"1110111011101011\n" +
"1010001000001011\n" +
"1010101111111011\n" +
"1000101010000011\n" +
"1010101010101111\n" +
"1010100000100311\n" +
"1111111111111111\n" +
"1111111111111111";
}