added includes

Author: saminjay

public/data/cpp.json

@@ -6,9 +6,12 @@
         "title": "Reverse String",
         "description": "Reverses the characters in a string.",
         "code": [
-          "string reverseString(const string& input) {",
-          "    string reversed = input;",
-          "    reverse(reversed.begin(), reversed.end()); // Using STL's reverse function",
+          "#include <string>",
+          "#include <algorithm>",
+          "",
+          "std::string reverseString(const std::string& input) {",
+          "    std::string reversed = input;",
+          "    std::reverse(reversed.begin(), reversed.end());",
           "    return reversed;",
           "}"
         ],