TicTacToe

void printM(int[][] x) {
	for (int i = 0; i < x.length; i++) {
		for (int j = 0; j < x[i].length; j++) {
			System.out.print(x[i][j] + " ");
		}
		System.out.println();
	}
}

boolean riga(int[][] x) {
	int i = 0;
	int j = 0;
	int variabile = x[j][0];
	int contatore = 1;
	while (i < x[0].length && j < x[0].length) {
		i++;

		if (x[j][i] == variabile && x[j][i] != 0) {
			contatore++;
			if (contatore == x[0].length) {
				return true;
			}
		} else {
			j++;
			if (i < x[0].length && j < x[0].length) {
				i = 0;
				contatore = 1;
				variabile = x[j][0];
			} else {
				return false;
			}
		}
	}
	return false;
}

boolean colonna(int[][] x) {
	int i = 0;
	int j = 0;
	int variabile = x[0][j];
	int contatore = 1;
	while (i < x[0].length && j < x[0].length) {
		i++;

		if (x[i][j] == variabile && x[i][j] != 0) {
			contatore++;
			if (contatore == x[0].length) {
				return true;
			}
		} else {
			j++;
			if (i < x[0].length && j < x[0].length) {
				i = 0;
				contatore = 1;
				variabile = x[0][j];
			} else {
				return false;
			}
		}
	}
	return false;
}

boolean diagonalePrima(int[][] x) {
	int i = 0;
	int j = 0;
	int variabile = x[i][j];
	int contatore = 1;
	while (i < x[0].length && j < x[0].length) {
		if (variabile != 0) {
			j++;
			i++;
		}

		if (x[i][j] == variabile && x[i][j] != 0) {
			contatore++;
			if (contatore == x[0].length) {
				return true;
			}
		} else {

			return false;
		}
	}
	return false;
}


boolean diagonaleSeconda(int[][] x) {
	int i = 0;
	int j =  x[0].length -1 ;
	int variabile = x[i][j];
	int contatore = 1;
	while (i < x.length && j >= 0) {
		if (variabile != 0) {
			j--;
			i++;
		}

		if (x[i][j] == variabile && x[i][j] != 0) {
			contatore++;
			if (contatore == x[0].length) {
				return true;
			}
		} else {

			return false;
		}
	}
	return false;
}
boolean tictactoe(int[][] a) {
	if(a[0][0] == 0){return false;}
	if(a[0][0] == 1){return true;}
	if(a[0][0] == 2){return true;}

	if (riga(a) == true) {	return true;}
	if (colonna(a) == true) {return true;}
	if (diagonalePrima(a) == true) {return true;}
	if (diagonaleSeconda(a) == true) {return true;}

	return false;
}
int[][] x = {{1,2,0}, {2,1,1}, {2,0,2}};
printM(x);
System.out.println(x[0].length);
System.out.println(riga(x));
System.out.println(colonna(x));
System.out.println(diagonalePrima(x));
System.out.println(diagonaleSeconda(x));