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import java.io.FileInputStream; import java.io.FileNotFoundException; import java.util.Scanner; public class Solution { static int n, m, count, dis, min, x, y; static int[][] room; static int[][] D; static int[] visit; static int[][][] dist; static int[] dx = { 1, -1, 0, 0 }; static int[] dy = { 0, 0, 1, -1 }; static Queue queue = new Queue(1000000); public static void main(String[] args) throws FileNotFoundException { // TODO Auto-generated method stub System.setIn(new FileInputStream("src/input.txt")); Scanner sc = new Scanner(System.in); int T = sc.nextInt(); for (int t = 1; t <= T; t++) { n = sc.nextInt(); m = sc.nextInt(); room = new int[n][m]; visit = new int[11]; D = new int[11][2]; dist = new int[11][n][m]; count = 1; x = y = 0; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { room[i][j] = sc.nextInt(); if (room[i][j] == 1) { D[count][0] = i; D[count][1] = j; count++; } if (room[i][j] == 3) { x = i; y = j; D[0][0] = x; D[0][1] = y; } } } min = 10000; dis = 0; for (int i = 0; i < count; i++) { finDistance(i); } System.out.println("Case# " + t); if (count == 0) { min = 0; } else { clean(0, 1); if (min == 10000) { min = -1; } } System.out.println(min); } sc.close(); } private static void finDistance(int idx) { // TODO Auto-generated method stub queue.reset(); queue.push(D[idx][0]); queue.push(D[idx][1]); dist[idx][D[idx][0]][D[idx][1]] = 0; while (!queue.empty()) { int x = queue.pop(); int y = queue.pop(); for (int i = 0; i < 4; i++) { int nx = x + dx[i]; int ny = y + dy[i]; if (nx >= 0 && ny >= 0 && nx < n && ny < m && dist[idx][nx][ny] == 0 && room[nx][ny] != 2) { dist[idx][nx][ny] = dist[idx][x][y] + 1; queue.push(nx); queue.push(ny); } } } } private static void clean(int idx, int k) { // TODO Auto-generated method stub if (dis > min) return; if (k == count) { min = dis < min ? dis : min; return; } visit[idx] = 1; for (int i = 1; i < count; i++) { int x = D[i][0]; int y = D[i][1]; if (visit[i] == 0) { if (dist[idx][x][y] != 0) { dis += dist[idx][x][y]; clean(idx + 1,k+1); dis -= dist[idx][x][y]; }else{ break; } } } visit[idx]=0; } } class Queue { static int f, r; static int arr[]; Queue(int c) { f = r = 0; arr = new int[c]; }; void reset() { f = r = 0; } void push(int data) { arr[r] = data; r++; } int pop() { int tmp = arr[f]; f++; return tmp; } int lengh() { return r - f; } int valueOf(int idx) { return arr[idx]; } boolean empty() { return f == r; } } 50 5 15 0 0 0 0 2 0 2 0 0 0 0 1 2 0 1 0 0 0 1 0 2 0 2 2 0 1 2 0 0 0 2 1 0 2 0 1 0 2 0 0 0 0 0 0 0 0 0 0 1 0 2 0 0 1 2 0 0 2 0 0 0 2 1 0 2 0 0 0 0 0 3 0 0 0 0 9 15 2 0 2 2 0 2 0 0 2 0 0 0 0 0 2 0 2 2 2 0 0 0 0 0 2 0 1 0 0 2 2 0 0 1 2 0 3 0 1 0 0 0 0 2 0 2 0 0 2 2 0 0 0 0 0 0 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 2 0 1 2 0 0 0 0 0 0 0 2 0 2 0 0 0 0 0 0 2 2 0 0 0 0 0 0 0 0 0 2 0 0 0 0 2 0 0 0 0 2 0 0 0 1 0 0 2 0 0 0 2 0 1 2 2 0 0 0 0 0 2 14 32 0 0 0 2 0 1 0 2 2 0 0 0 0 0 0 0 2 0 0 0 0 0 2 0 0 0 2 0 2 0 2 2 0 0 0 0 0 0 0 0 2 2 2 2 0 2 0 0 0 0 0 2 2 0 2 0 0 2 0 0 0 0 0 0 0 0 2 0 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