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►Lesson Description: In this lesson I show you how to use is_sorted and is_sorted_until. is_sorted is implemented in terms of is_sorted_until, but provides a simple bool value, while is_sorted_until provides an iterator to the element not sorted. This algorithm runs in linear time, and may be useful to do a check before a more expensive sort operation. I'll also at the end show you how to use this at compile-time on a std::array with static_assert for fun!
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