## 23.5 Maps - Operations (cont.)

Operation | Description
--- | ---
`find(key)` | Return iterator to value with key
`insert(elem)` | Insert elem, which must be a key/value `pair`
`lower_bound(key)` | Return iterator for first entry with key (`multimap` only)
`rbegin()` | Return iterator in reverse order
`rend()` | Return ending iterator in reverse order
`size()` | Number of elements in container
`upper_bound(key)` | Return iterator for past-the-end entry with key (`multimap` only)
`operator[key]` | Return value associated with key

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