For C++

Thanks in Advance!

1) Write a while loop that reads integers from standard input and prints them on standard output separated by spaces until the end of file on standard input is encountered.

2) Write a program that reads strings from stdin, inserts them in a set container, and prints them sorted on stdout.

3) Express the cost of finding an element in a balanced binary search tree, as a function of the number N of elements in the tree.

4)Write a range-based for loop to print on stdout all the elements of a list declared as list a;