Should i keep using iostream or switch to stdio.

Answer 1

Those headers (<iostream> and <cstdio>), despite for similarity of purpose (handling I/O operations), are different, and as such, are no comparison.

<iostream> is C++ only, and is built with OOP considerations. <cstdio> is C and C++ compatible, but may not be as friendly for beginners.

This page might enlighten you about the differences.

http://www.cs.technion.ac.il/users/yechiel/c++-faq/iostream-vs-stdio.html

Answer 2

Premise: the stdio library is included in iostream, so if you want to use for some reason those functions, you can.

I personally think that if you program in C++ than there is no need for downgrading to a C library