C++11 std::map vs std::set

What are the main differences between std::map and std::set in C++11?

std::map is a key-value pair container, while std::set is a collection of unique keys. Would you like more details?

How does std::map handle duplicate keys?

std::map does not allow duplicate keys; if you try to insert a duplicate, it will not be added. Instead, it updates the existing key's value.

Can you explain the underlying data structure used by std::map?

std::map is typically implemented as a balanced binary search tree, like a Red-Black tree, which ensures O(log n) complexity for insertions and lookups.

When should I use std::set instead of std::map?

Use std::set when you only need to store unique keys without associated values. It's more efficient for operations that only require key management.