added solution for Programming-Problems/Search_a_2D_Matrix_II.java

Programming-Problems/Search_a_2D_Matrix_II.java

@@ -0,0 +1,25 @@
+// Write an efficient algorithm that searches for a value target in an m x n integer matrix matrix. This matrix has the following properties:
+
+// Integers in each row are sorted in ascending from left to right.
+// Integers in each column are sorted in ascending from top to bottom.
+
+class Solution {
+    public boolean searchMatrix(int[][] matrix, int target) {
+            if (matrix == null || matrix.length == 0 || matrix[0].length == 0) {
+            return false; 
+        }
+        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) {
+                row++; 
+            } else {
+                col--; 
+            }
+        }
+        return false;
+    }
+}