diff --git a/std/algorithm.hpp b/std/algorithm.hpp
new file mode 100644
index 0000000..9b923e3
--- /dev/null
+++ b/std/algorithm.hpp
@@ -0,0 +1,5 @@
+#pragma once
+
+#include <algorithm>
+
+using std::equal;
diff --git a/std/cstdio.hpp b/std/cstdio.hpp
new file mode 100644
index 0000000..61bbf45
--- /dev/null
+++ b/std/cstdio.hpp
@@ -0,0 +1,3 @@
+#pragma once
+
+#include <cstdio>
diff --git a/std/iostream.hpp b/std/iostream.hpp
new file mode 100644
index 0000000..1726c25
--- /dev/null
+++ b/std/iostream.hpp
@@ -0,0 +1,13 @@
+#pragma once
+
+#include <iostream>
+
+using std::cin;
+using std::cout;
+using std::cerr;
+
+using std::endl;
+using std::flush;
+
+using std::istream;
+using std::ostream;
diff --git a/std/noncopyable.hpp b/std/noncopyable.hpp
new file mode 100644
index 0000000..2829a55
--- /dev/null
+++ b/std/noncopyable.hpp
@@ -0,0 +1,5 @@
+#pragma once
+
+#include <boost/noncopyable.hpp>
+
+using boost::noncopyable;
diff --git a/std/sstream.hpp b/std/sstream.hpp
new file mode 100644
index 0000000..d644fc4
--- /dev/null
+++ b/std/sstream.hpp
@@ -0,0 +1,5 @@
+#pragma once
+
+#include <sstream>
+
+using std::ostringstream;
diff --git a/std/stdint.hpp b/std/stdint.hpp
new file mode 100644
index 0000000..20bf192
--- /dev/null
+++ b/std/stdint.hpp
@@ -0,0 +1,3 @@
+#pragma once
+
+#include <stdint.h>
diff --git a/std/string.hpp b/std/string.hpp
new file mode 100644
index 0000000..8fe3c8b
--- /dev/null
+++ b/std/string.hpp
@@ -0,0 +1,5 @@
+#pragma once
+
+#include <string>
+
+using std::string;
diff --git a/std/vector.hpp b/std/vector.hpp
new file mode 100644
index 0000000..e4e1af5
--- /dev/null
+++ b/std/vector.hpp
@@ -0,0 +1,5 @@
+#pragma once
+
+#include <vector>
+
+using std::vector;