How do I insert and erase elements efficiently with std::deque?

In C++, `std::deque` (double-ended queue) is a sequence container that allows for efficient insertion and deletion of elements at both the beginning and the end. Below is an example demonstrating how to insert and erase elements using `std::deque`. This data structure is particularly useful when you frequently need to add and remove elements from both ends.

#include #include int main() { std::deque myDeque; // Inserting elements at the back myDeque.push_back(10); myDeque.push_back(20); myDeque.push_back(30); // Inserting elements at the front myDeque.push_front(5); myDeque.push_front(1); // Erasing element from the front myDeque.pop_front(); // Erasing element from the back myDeque.pop_back(); // Display remaining elements for (int element : myDeque) { std::cout << element << " "; } return 0; }

std::deque C++ insertion erasure efficiency data structures

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