diff --git a/STL/Algorithms/algo_stl_01_find.cpp b/STL/Algorithms/algo_stl_01_find.cpp
index 6098f80..ec6ce2b 100644
--- a/STL/Algorithms/algo_stl_01_find.cpp
+++ b/STL/Algorithms/algo_stl_01_find.cpp
@@ -1,5 +1,4 @@
-#include <iostream>
-#include <algorithm>
+#include<bits/stdc++.h>
 using namespace std;
 
 
diff --git a/STL/Algorithms/algo_stl_02_binary_search_lower_upper.cpp b/STL/Algorithms/algo_stl_02_binary_search_lower_upper.cpp
index ed7573f..0f39ef1 100644
--- a/STL/Algorithms/algo_stl_02_binary_search_lower_upper.cpp
+++ b/STL/Algorithms/algo_stl_02_binary_search_lower_upper.cpp
@@ -1,5 +1,4 @@
-#include <iostream>
-#include <algorithm>
+#include<bits/stdc++.h>
 using namespace std;
 
 
diff --git a/STL/Strings/string_stl_01 2.cpp b/STL/Strings/string_stl_01 2.cpp
index beeeeda..a23e610 100644
--- a/STL/Strings/string_stl_01 2.cpp	
+++ b/STL/Strings/string_stl_01 2.cpp	
@@ -1,5 +1,4 @@
-#include <iostream>
-#include <string>
+#include<bits/stdc++.h>
 using namespace std;
 
 int main() {
diff --git a/STL/Vectors/vector_stl_01.cpp b/STL/Vectors/vector_stl_01.cpp
index 8183c7a..ad8755d 100644
--- a/STL/Vectors/vector_stl_01.cpp
+++ b/STL/Vectors/vector_stl_01.cpp
@@ -1,5 +1,4 @@
-#include <iostream>
-#include <vector>
+#include<bits/stdc++.h>
 
 using namespace std;
 int main() {
diff --git a/STL/Vectors/vector_stl_02.cpp b/STL/Vectors/vector_stl_02.cpp
index 0d7d312..28d4d79 100644
--- a/STL/Vectors/vector_stl_02.cpp
+++ b/STL/Vectors/vector_stl_02.cpp
@@ -1,5 +1,4 @@
-#include <iostream>
-#include <vector>
+#include<bits/stdc++.h>
 
 using namespace std;
 int main() {