diff --git a/2dMatrix.java b/2dMatrix.java
new file mode 100644
index 00000000..274d9cb4
--- /dev/null
+++ b/2dMatrix.java
@@ -0,0 +1,26 @@
+// Time Complexity : O(log(m*n))
+// Space Complexity : O(1)
+// Did this code successfully run on Leetcode : Yes
+// Any problem you faced while coding this : No
+class Solution {
+    public boolean searchMatrix(int[][] matrix, int target) {
+        int matrixLen = matrix[0].length ;
+        int high = (matrix.length * matrixLen)-1;
+        int low = 0;
+        while(low<=high){
+            int mid = low + (high-low)/2;
+            int m = mid/matrixLen;
+            int n = mid%matrixLen;
+            if(matrix[m][n]==target){
+                return true;
+            }
+            if(matrix[m][n]<target){
+                low = mid + 1;
+            }
+            else{
+                high = mid - 1;
+            }
+        }
+        return false;
+    }
+}
\ No newline at end of file
diff --git a/search-in-rotated-sorted-array.java b/search-in-rotated-sorted-array.java
new file mode 100644
index 00000000..0be94183
--- /dev/null
+++ b/search-in-rotated-sorted-array.java
@@ -0,0 +1,34 @@
+// Time Complexity : O(log n)
+// Space Complexity : O(1)
+// Did this code successfully run on Leetcode : Yes
+// Any problem you faced while coding this : No
+
+class Solution {
+    public int search(int[] nums, int target) {
+        int high = nums.length -1;
+        int low =0;
+        while(low<=high){
+            int mid = low + (high - low)/2;
+            if(nums[mid]==target){
+                return mid;
+            }
+            if(nums[mid]>= nums[low]){
+                if(target>=nums[low] && target<nums[mid]){
+                    high = mid -1;
+                }
+                else{
+                    low = mid +1;
+                }
+            }
+            else{
+                if(target<=nums[high]&& target>nums[mid]){
+                    low = mid +1;
+                }
+                else {
+                high = mid -1;
+                }
+            }
+        }
+        return -1;
+    }
+}
\ No newline at end of file