June 2018
Beginner to intermediate
240 pages
3h 54m
Russian
Content preview from Алгоритмы и структуры данных. Извлечение информации на языке Java
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
141
Профилирование MyHashMap
containsValue является линейным, поскольку должен искать
все подкарты. И нет особо эффективного способа найти значе-
ние и соответствующий ключ (или, возможно, ключи).
И еще одно ограничение: отдельные методы, которые были ме-
тодами постоянного времени в MyLinearMap, стали линейными.
Например:
public void clear() {
for (int i=0; i<maps.size(); i++) {
maps.get(i).clear();
}
}
Метод clear должен очистить все подкарты, а их количество
пропорционально n, в связи с чем этот метод линейный. К сча-
стью, данная операция используется не слишком часто, так
что для большинства приложений описанный компромисс до-
пустим.
Профилирование MyHashMap
Прежде чем продолжить, нужно проверить, действительно ли
MyHashMap.put выполняется за ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.