HelloWorld.cpp: Cleaned up, fixed bugs, made compilable.
HelloWorld.cpp: Cleaned up, fixed bugs, made compilable.

TharinduDilshan/Hacktoberfest-1,AllenCompSci/Hacktoberfest,AllenCompSci/Hacktoberfest,TharinduDilshan/Hacktoberfest-1,deepanshu22/Hacktoberfest-1,TharinduDilshan/Hacktoberfest-1,deepanshu22/Hacktoberfest-1,TharinduDilshan/Hacktoberfest-1,TharinduDilshan/Hacktoberfest-1,AllenCompSci/Hacktoberfest,AllenCompSci/Hacktoberfest,AllenCompSci/Hacktoberfest,deepanshu22/Hacktoberfest-1,deepanshu22/Hacktoberfest-1,deepanshu22/Hacktoberfest-1,AllenCompSci/Hacktoberfest,deepanshu22/Hacktoberfest-1,TharinduDilshan/Hacktoberfest-1,AllenCompSci/Hacktoberfest,deepanshu22/Hacktoberfest-1,TharinduDilshan/Hacktoberfest-1