You can't read and write in a single statement in this language.
I am not quite able to read your language well enough to see what you want to do. Are you wanting to write the 2 statements on a single line without the reading interruption? You would have to read cena first, then do a single print statement to do that.
like
cin >> cena;
cout << "Unesite cenu parkinga po satu [din]. . ."<< "din";
I wanted to print the second statement right after entering a variable (Not ending the line after input),but i googled a little bit after this post,and i found out that Enter automaticaly ends the line,but it's also required to read the variable,so it is quite imposible to do what i was planing to do.So Nvm I'll do it another way