Please do Problems 2, 3 AND 4 in C++!! Thank You! Problems 3 and4 are based off Problem 2! void push_front(const int\& \( \mathrm{x}) \); // returns the number of elements in the list unsigned int size ()\( ; \) ; void push_front(const int\& \( \mathrm{x} \) ); // returns the number of elem 1 answer