このレッスンは、現在英語のみです。
Instant lookups
To find one player's score among millions, you do not scan a list from the top. You look it up by name. Dictionaries map keys to values, and sets keep values unique.
このレッスンは、現在英語のみです。
To find one player's score among millions, you do not scan a list from the top. You look it up by name. Dictionaries map keys to values, and sets keep values unique.