What are the best tricks you know about programming and can you share with us ?

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What are the best tricks you know about programming and can you share with us ?

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Instead of using

#include

#include

#include

#include

#include

and many more, you can simply include the following header definition.

#include <bits/stdc++.h> in your code.
You can read more about the Linux GCC 4.8.0 /bits/stdc++.h header definition here.