Объединение нескольких классических структур данных в кастомную или другую классическую
## Примеры задач
- [Design Hit Counter](../Задачи/LeetCode/Design%20Hit%20Counter.md)
- [Flatten Nested List Iterator](../Задачи/LeetCode/Flatten%20Nested%20List%20Iterator.md)
- [Implement Queue using Stacks](../Задачи/LeetCode/Implement%20Queue%20using%20Stacks.md)
- [Implement Rand10() Using Rand7()](../Задачи/LeetCode/Implement%20Rand10()%20Using%20Rand7().md)
- [Implement Trie (Prefix Tree)](../Задачи/LeetCode/Implement%20Trie%20(Prefix%20Tree).md)
- [Insert Delete GetRandom O(1)](../Задачи/LeetCode/Insert%20Delete%20GetRandom%20O(1).md)
- [LRU Cache](../Задачи/LeetCode/LRU%20Cache.md)
- [Max Stack](../Задачи/LeetCode/Max%20Stack.md)
- [Number of Recent Calls](../Задачи/LeetCode/Number%20of%20Recent%20Calls.md)