diff --git a/binarysearch.cpp b/binarysearch.cpp
new file mode 100644
index 0000000..5078e62
--- /dev/null
+++ b/binarysearch.cpp
@@ -0,0 +1,32 @@
+#include <bits/stdc++.h>
+using namespace std;
+int binarysearch(int arr[],int n,int val)
+{
+    int start=0;
+    int end=n;
+    while(start<=end)
+    {
+        int mid= (start+end)/2;
+        if(arr[mid]==val)
+        {return mid;}
+        else if(arr[mid]>val)
+        {end=mid-1;}
+        else
+        {start=mid+1;}
+    }
+    return -1;
+}
+int main()
+{
+    int n;
+    cin>>n;
+    int arr[n];
+    for(int i=0;i<n;i++)
+    {
+        cin>>arr[i];
+    }
+    int val;
+    cin>>val;
+    cout<<binarysearch(arr,n,val)<<endl;
+    return 0;
+}