diff --git a/qtree.cpp b/qtree.cpp
index b528401..7629cff 100644
--- a/qtree.cpp
+++ b/qtree.cpp
@@ -1,5 +1,4 @@
-#include <cstdio>
-#include <vector>
+#include <bits/stdc++.h>
 using namespace std;
 
 #define root 0
@@ -240,4 +239,4 @@ int main() {
 			}
 		}
 	}
-}
\ No newline at end of file
+}