Answer to Question #7198 in C++ for al

Question

how to write a function that it will allow lecture to enter marks for students depending on his login details such as password/type.I mean if lecture of maths is logged in - how to set marks only for maths but if lecture of English is logged in, how to set marks for English only. I have lectures class and I have different types of lectures. Also, I cannot ask lecture to enter any of his details, function has to recognize him as soon as he login.