diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 00000000..30cf57ed
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Ignored default folder with query files
+/queries/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/Binary-Search-1.iml b/.idea/Binary-Search-1.iml
new file mode 100644
index 00000000..d6ebd480
--- /dev/null
+++ b/.idea/Binary-Search-1.iml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 00000000..2bfdeda2
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_25" default="true" project-jdk-name="openjdk-25" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 00000000..1642735e
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/Binary-Search-1.iml" filepath="$PROJECT_DIR$/.idea/Binary-Search-1.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 00000000..35eb1ddf
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Problem1.java b/Problem1.java
new file mode 100644
index 00000000..9668ebde
--- /dev/null
+++ b/Problem1.java
@@ -0,0 +1,25 @@
+class Problem1 {
+    public boolean searchMatrix(int[][] matrix, int target) {
+        int m = matrix.length;
+        int n = matrix[0].length;
+
+
+        int low = 0;
+        int high = m*n -1;
+
+        while (low <=high) {
+            int mid = low + (high - low)/2;
+            int r = mid/n;
+            int c = mid%n;
+            if(matrix[r][c] == target) return true;
+            if(matrix[r][c]>= target) 
+            {
+                high = mid -1;
+            } else {
+                low = mid+1;
+            }
+
+        }
+    return false;
+    }
+}
\ No newline at end of file
diff --git a/Problem2.java b/Problem2.java
new file mode 100644
index 00000000..e94a1c23
--- /dev/null
+++ b/Problem2.java
@@ -0,0 +1,22 @@
+class Problem2 {
+
+    public int search(int[] nums, int target) {
+
+        int low = 0;
+        int high = nums.length - 1;
+        while(low <=high) {
+            int mid  = low + (high -low)/2;
+            if(nums[mid] == target) return mid;
+            if(nums[mid] >= nums[low]) {
+                if(nums[mid] > target && target >= nums[low]) {
+                    high = mid -1;
+                } else low = mid+1;
+            }else {
+                if(nums[mid] < target && target <= nums[high]) {
+                    low = mid + 1;
+                } else high = mid-1;
+            }
+        }
+        return -1;
+    }
+}
\ No newline at end of file
diff --git a/Problem3.java b/Problem3.java
new file mode 100644
index 00000000..fc8a166a
--- /dev/null
+++ b/Problem3.java
@@ -0,0 +1,30 @@
+class Problem3 {
+    public int search(ArrayReader reader, int target) {
+
+        int low = 0;
+        int high = 1;
+
+        
+            while(reader.get(high) <= target) {
+                low = high;
+                high = 2*high;
+            }
+        
+        while (low <= high) {
+            
+            int mid  = low + ((high -low)/2);
+
+            if (reader.get(mid) == target)   return mid;
+           
+            if(reader.get(mid) > target){
+               high  = mid -1;
+            } else {
+               
+                low = mid +1;
+               
+            }
+
+        }
+    return -1;
+    }
+}
\ No newline at end of file