Submission #410034

#TimeUsernameProblemLanguageResultExecution timeMemory
410034PikaChu999Tracks in the Snow (BOI13_tracks)Java
Compilation error
0 ms0 KiB
/* 5 8 FFR..... .FRRR... .FFFFF.. ..RRRFFR .....FFF */ import java.util.*; import java.io.*; public class Main { public static int height; public static int width; public static String[][] grid; public static int res = 0; public static int[] xCoors = {0,0,-1,1}; public static int[] yCoors = {1,-1,0,0}; public static void main(String[] args) throws IOException{ BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer details = new StringTokenizer(br.readLine()); height = Integer.parseInt(details.nextToken()); width = Integer.parseInt(details.nextToken()); grid = new String[height][width]; for(int x = 0; x < height; x++){ String row = br.readLine(); for(int y = 0; y < width; y++){ grid[x][y] = String.valueOf(row.charAt(y)); } } floodfill(); System.out.println(res); br.close(); } public static void floodfill(){ boolean[][] seen = new boolean[height][width]; for(int a = 0; a < height; a++){ for(int b = 0; b < width; b++){ if(!seen[a][b] && !grid[a][b].equals(".")){ res++; String animal = grid[a][b]; boolean otherAnimal = false; Queue<Coord> tree = new LinkedList<Coord>(); tree.add(new Coord(a, b)); while(!tree.isEmpty()){ Coord current = tree.poll(); if(!seen[current.x][current.y]){ if(!grid[current.x][current.y].equals(animal)) otherAnimal = true; System.out.println(current + " " + grid[current.x][current.y]); seen[current.x][current.y] = true; for(int c = 0; c < 4; c++){ int xCoord = current.x + xCoors[c]; int yCoord = current.y + yCoors[c]; if(xCoord < 0 || yCoord < 0 || xCoord >= height || yCoord >= width || grid[xCoord][yCoord].equals(".")) continue; tree.add(new Coord(xCoord, yCoord)); } } } if(otherAnimal) res++; } } } } } class Coord{ int x; int y; public Coord(int xC, int yC){ x = xC; y = yC; } public String toString(){ return x + " " + y; } }

Compilation message (stderr)

tracks.java:12: error: class Main is public, should be declared in a file named Main.java
public class Main {
       ^
1 error