What do we mean by fast input - output in C++?

#1

In video, bhaiya told about scanf, printf and bufferered reader but they are for C and JAVA …what about C++?

#2

Please mention the video and the time so that i can check.

#3

Tricks to avoid TLE in Coding , last 5 minutes.

#4

scanf and printf can also be used in C++ for taking fast inputs