diff --git a/custom_hash.cpp b/custom_hash.cpp
index cdaa9fb..f1c44aa 100644
--- a/custom_hash.cpp
+++ b/custom_hash.cpp
@@ -1,6 +1,4 @@
-#include <ctime>
-#include <iostream>
-#include <unordered_map>
+#include<bits/stdc++.h>
 using namespace std;
 
 struct custom_hash {