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TicTacToe.java
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TicTacToe.java
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import java.util.HashMap;
class TicTacToe {
int size;
String[][] board;
HashMap<Integer, String> mark;
/** Initialize your data structure here. */
public TicTacToe(int n) {
this.size = n;
this.board = new String[n][n];
this.mark = new HashMap<>();
mark.put(1, "O");
mark.put(2, "X");
}
/** Player {player} makes a move at ({row}, {col}).
@param row The row of the board.
@param col The column of the board.
@param player The player, can be either 1 or 2.
@return The current winning condition, can be either:
0: No one wins.
1: Player 1 wins.
2: Player 2 wins. */
public int move(int row, int col, int player) {
// System.out.print(row);
// System.out.println(col);
this.board[row][col] = this.mark.get(player);
boolean val = check_row(row, player) || check_col(col, player) || check_left_diag(row, col, player) || check_right_diag(row, col, player);
//printboard();
return val? player:0;
}
public boolean check_row(int row, int player){
for (int i=0; i<this.size; i++){
if (this.board[row][i] != this.mark.get(player))
return false;
}
return true;
}
public boolean check_col(int col, int player){
for (int i=0; i<this.size; i++){
//System.out.println(this.board[i][col]);
if (this.board[i][col] != this.mark.get(player))
return false;
}
return true;
}
public boolean check_left_diag(int row, int col, int player){
if (row != col)
return false;
for (int i=0; i<this.size; i++){
if (this.board[i][i] != this.mark.get(player))
return false;
}
return true;
}
public boolean check_right_diag(int row, int col, int player){
if (col != this.size - row -1)
return false;
int i = 0, j = this.size-1;
while (i< this.size && j>=0){
if (this.board[i][j] != this.mark.get(player))
return false;
i++;
j--;
}
return true;
}
public void printboard(){
for (int i=0; i<this.size; i++){
for(int j=0; j<this.size; j++)
System.out.print(this.board[i][j]);
System.out.println();
}
}
}
/**
* Your TicTacToe object will be instantiated and called as such:
* TicTacToe obj = new TicTacToe(n);
* int param_1 = obj.move(row,col,player);
*/