diff --git a/1.1.cpp b/1.1.cpp
index 4edfc9e..0a9350d 100644
--- a/1.1.cpp
+++ b/1.1.cpp
@@ -1,5 +1,4 @@
-#include <iostream>
-#include <cstring>
+#include <bits/stdc++.h>
 using namespace std;
 
 bool isUnique1(string s)