Can someone please explain that why am I getting this error, and how to fix it?

D:/CSC11300/Udemy/Udemy/Udemy/question3.cpp:5: multiple definition of 'main'; Debug/question1.cpp.o:D:/CSC11300/Udemy/Udemy/Udemy/ question1.cpp:4: first defined here c/mingw/bin/../lib/gcc/mingw32/9.2.0/../../../../mingw32/bin/ld.exe: Debug/question2.cpp.o: in function ZSt12 setprecisioni': D:/CSC11300/Udemy/Udemy/Udemy/question2.cpp:7: multiple definition of 'main'; Debug/question1.cpp.o:D:/CSC11300/Udemy/Udemy/Udemy/question1.cpp:4: first defined here collect2.exe: error: ld returned 1 exit status mingw32-make.exe[1]: *** [Debug/Udemy] Error 1 mingwa: 'AIT Epar? Udemy .mk:78: recipe for target 'Debug/Udemy' failed mingw32-make.exe[1]: Leaving directory 'D:/CSC11300/Udemy/Udemy/Udemy Makefile:4: recipe for target 'All' failed ====1 errors, warnings==== Ln 1, Col O SPACES CRLF C++ UTF-8 ! Udemy DVSC130Wemyslemem question.cpp File Edit View Search Workspace Build Debugger Plugins Perspective Settings Help Workcoace View practicaliprecep Idemqumtir3.com Licity util.cpp Workcapace Explona Tube include Lenty Dubuy V using namespace std; = int main() { Uderry Udemy cout > ago; int age: - question.cpp question.cpp Question cop questione Question.cpp question opp if (p 21) cout