C++ I/O
Explore the essential C++ I/O methods used in competitive programming, including cin/cout and scanf/printf. Understand how synchronization affects performance and learn tips to optimize input and output operations for large data sets.
We'll cover the following...
We'll cover the following...
I/O in contests
In competitions, the input for your code has to read from standard input (most of the time) and you print the output to standout output.
In C++, two most common choices to do is
- iosteams -
cin/cout(NEW) - stdio -
scanf/printf(C style)
Though it seems inconsequential, handling I/O correctly can make your solution milliseconds or even a few seconds. This becomes relevant when the input is huge (for example, reading ...