#include#include int main() { std::deque numbers{1, 2, 3}; // Obtain the last element int last = numbers.back(); std::cout << "The last element is: " << last << '\n'; return 0; }
#includeThis example creates a deque of characters and changes the last element to 'd' using the back function. The output will be "a b d". The std deque back function is part of the standard C++ library.#include int main() { std::deque letters{'a', 'b', 'c'}; // Change the last element to 'd' letters.back() = 'd'; for (auto letter : letters) { std::cout << letter << ' '; } return 0; }