This is from C++ class.

Can someone answer these questions?

1. Write a sequence of statements that will read some non negative integer value n from a user and then outputs to the screen the sum of the numbers from 1 to n. For example, if the user inputs the value 5, the output generated by your statements should be 15. (I.e., 1+2+3+4+5) You should include the definition of any objects needed by your statements. 2. Is it possible in C+for a variable defined in one function to be accessed by a statement in another function? 3. Can a function in C++ return more than one value at a time