A map is a collection of key-value pairs. When we want a container acting like dictionary, we should choose map.
A set is a collection of keys. When we want to check if some values are present, we can choose set.
A map is a collection of key-value pairs. When we want a container acting like dictionary, we should choose map.
A set is a collection of keys. When we want to check if some values are present, we can choose set.