vector subscript indexer « Vector « C++

1.	Use indexer to add elements to a vector
2.	Use indexer to reference elements in a vector
3.	Loop thourgh all elements in a vector using <
4.	Loop through all elements in a vector using operator [] instead of operator *
5.	Create another vector that contains a subrange of vector.
6.	Raise all values in a vector by a given percentage
7.	Read double from keyboard, save it to a vector and find the max value