# Associative Containers

## Compounds

class | map
| A standard container made up of (key,value) pairs, which can be retrieved based on a key, in logarithmic time. More...
class | multimap
| A standard container made up of (key,value) pairs, which can be retrieved based on a key, in logarithmic time. More...

## Detailed Description

Associative containers allow fast retrieval of data based on keys.

Each container type is parameterized on a `Key` type, and an ordering relation used to sort the elements of the container.

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All associative containers must meet certain requirements, summarized in tables.