Principles used for algorithms

Generalization by function parameters
- Insight from higher-order functions
- Spawns some work on C++ function objects, §19.2.2 (4ed)
  - In part, due to the lack of lambda expressions until C++11
A sequence is defined by two iterators
- Beginning at the first element
- Ended by the one-beyond-the-last element
Failure to find an element in a sequence
- Return the (off by one) end of sequence iterator
The time complexities of the algorithms are specified by the C++ standard