compiling issue

[Himanshu1S]

c:/mingw/bin/../lib/gcc/mingw32/6.3.0/../../../libmingw32.a(main.o):(.text.startup+0xa0): undefined reference to `WinMain@16'
collect2.exe: error: ld returned 1 exit status
PS C:\vsc>

here is the i have been addressing since following the steps kindly fix