diff --git a/Reverse.cpp b/Reverse.cpp
index 135757a..e27e8ea 100644
--- a/Reverse.cpp
+++ b/Reverse.cpp
@@ -1,12 +1,7 @@
+#include <algorithm>
 #include "Reverse.h"
 
-std::string Reverse::reverse(std::string& toReverse)
+std::string Reverse::reverse(const std::string& toReverse)
 {
-    std::string ret;
-
-    for(std::string::reverse_iterator rit=toReverse.rbegin(); rit!=toReverse.rend(); ++rit)
-    {
-        ret.insert(ret.end(), *rit);
-    }
-    return ret;
-}
+    return std::string(toReverse.rbegin(), toReverse.rend());
+}
\ No newline at end of file
diff --git a/post_test.sh b/post_test.sh
old mode 100755
new mode 100644