(Often, a cleaner alternative to using lambda functions for sorting is to define a class holding all the data for each entry and to implement the $<$ operator.)

_Please let us know in the comments section what other $C++11$ features do you use for programming contests. Code snippets illustrating your favorite tricks would be beneficial for us all._

_Let us know in the comments section what are the $C++11$ features that you use for programming contests. Code snippets illustrating your favorite tricks are welcome._