Can someone help me solve these exercises in c++ ?

Exercise 1: Enter a string through the keyboard. For end press Ctrl + A. Enter the string (the caharacters) into a queue and print it. Calculate the mean (average) ASCII value of all the characters in the queue. Then, find the intermediate element (the one that has the lowest difference with the average value)Print the character and its ASCII code.

Exercise 2: Enter a string through the keyboard. For end press Ctrl + A. Enter the string (characters) into a stack and print the reverse string.

Exercise 3: Create a tree by entering the values of its nodes. Write preorder, inorder, postorder and levelorder (using queue) functions to print the values of the tree nodes.Write a function findLevel(node2 *tree, T element, int & level) which will return the level on which a node entered through the keyboard is positioned. Note: The root is on level 0.