filestream- can a path name be a variable

when creating an output file stream is there any way to the path name a varible and the extention is three digits the first number represent the day of the week (mon, tues, etc) and the last represent the number of files created so everytime a new file is created of the same type it increments by one

Yes it can

can you advise me on how please

Code:

---

char fileName[20];

cout << "Enter the txt file you would like to open: ";
cin >> fileName;

ofstream fileOut( fileName );

if( fileOut )
{
cout << "Congrats, you have successfully opened the file!!\n";
}
else
{
cout << "Could not open file, nevermind its not your fault really.\n";
}

fileOut.close( )

---