feb 2015 problem 11 and 12

uil/aplus-february-2015/12/TicTacToe.java

@@ -0,0 +1,89 @@
+import static java.lang.System.out;
+import java.util.Scanner;
+import java.util.Arrays;
+import java.io.File;
+import java.io.IOException;
+
+class Board {
+    private String[][] board;
+    
+    Board(String input) {
+        this.board = new String[3][3];
+        for(int i = 0; i < 9; i++)
+            this.board[i / 3][i % 3] = input.substring(i, i + 1);
+    }
+    
+    // [[A, B, C], [D, E, F], [G, H, I]]
+    // A B C | 0,0 1,0 2,0
+    // D E F | 0,1 1,1 2,1
+    // G H I | 0,2 1,2 2,2
+
+    public String[] vertical(int x) {
+        return this.board[x];
+    }
+    public String[] horizontal(int y) {
+        String[] vert = new String[3];
+        for(int x = 0; x < 3; x++)
+            vert[x] = this.board[x][y];
+        return vert;
+    }
+
+    public String[] diagonal(boolean rising) {
+        String[] diag = new String[3];
+        if(rising) {
+            for(int i =  0; i < 3; i++)
+                diag[i] = this.board[2 - i][2 - i];
+        } else {
+            for(int i = 0; i < 3; i++)
+                diag[i] = this.board[i][i];
+        }
+        return diag;
+    }
+
+    public boolean equal(String[] line) {
+        return line[0].equals(line[1]) && line[1].equals(line[2]) && !line[0].equals("*");
+    }
+
+    public String solve() {
+        // Verticals
+        for(int x = 0; x < 3; x++)
+            if(this.equal(this.vertical(x)))
+                return this.vertical(x)[0];
+        // Horizontals
+        for(int y = 0; y < 3; y++)
+            if(this.equal(this.horizontal(y)))
+                return this.horizontal(y)[0];
+        // Diagonals
+        if(this.equal(this.diagonal(false)))
+            return this.diagonal(false)[0];
+        if(this.equal(this.diagonal(true)))
+            return this.diagonal(true)[0];
+        
+        // Check for incompletion
+        for(int x = 0; x < 3; x++) {
+            for(int y = 0; y < 3; y++) {
+                if(this.board[x][y].equals("*"))
+                    return "INC";
+            }
+        }
+        
+        // Tie
+        return "TIE";
+    }
+
+    public String toString() {
+        return String.format("Board(%s)", Arrays.deepToString(this.board));
+    }
+}
+
+class Main {
+  public static void main(String[] args) throws IOException {
+      Scanner s = new Scanner(new File("tictactoe.dat"));
+      s.nextLine();
+      while(s.hasNextLine()) {
+            String input = s.nextLine();
+            Board board = new Board(input);
+            out.println(board.solve());
+      }
+  }
+}