Getting error while running hello world in vsc C++

#include <iostream>

int main(){
cout << "hello world" << endl;
return 0;
}

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

[Done] exited with code=1 in 0.83 seconds