question46.java

public class question46 {
    public static boolean searchMatrix(int[][] matrix, int target) {
        int row = 0;
        int col = matrix[0].length - 1;

        while (row < matrix.length && col >= 0) {
            if (matrix[row][col] == target) {
                return true;
            } else if (matrix[row][col] > target) {
                col--;
            } else {
                row++;
            }
        }
        return false;
    }

    public static void main(String[] args) {
        int[][] matrix = {
            {1, 4, 7, 11},
            {2, 5, 8, 12},
            {3, 6, 9, 16},
            {10, 13, 14, 17}
        };
        int target = 14;

        System.out.println("Found: " + searchMatrix(matrix, target));
    }
}