`sum.cpp``numbers.cpp``pennies.cpp`

Prompt the user and let them enter two integers (we'll call them x and y, for the purposes of this writeup). Compute and print the sum of the ingeters in the range x through y (including the endpoints). Output should look like the sample runs below, and print the addition details from the smallest to the largest number.

(Note: The user input will **not**
necessarily have the lowest number first -- see Sample Run 2. You must
take this into account).

Input two integers:10 20Sum of values from 10 through 20 is: 10 + 11 + 12 + 13 + 14 + 15 + 16 + 17 + 18 + 19 + 20 = 165

Input two integers:9 -4Sum of values from -4 through 9 is: -4 + -3 + -2 + -1 + 0 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 35

Input two integers:7 7Sum of values from 7 through 7 is: 7 = 7

Write a program that will allow the user to enter a set of integers (as many as they want), then prints out a summary of information, as follows:

- Prompt the user continually to enter a number, until the value 0 is entered, which will be the signal to stop entering values. (This is sometimes known as a "sentinel" value).
- Once the sentinel value has been entered, print out the following
information:
- The number of positive values that were input
- The number of negative values that were input
- The sum of the input values
- The average (to two decimal places) of the input values

- Your output must match mine exactly. See the sample runs below

Input integer (0 to stop):12Input integer (0 to stop):4Input integer (0 to stop):-1Input integer (0 to stop):-5Input integer (0 to stop):18Input integer (0 to stop):0# of positives = 3 # of negatives = 2 Sum = 28 Average = 5.60

Input integer (0 to stop):4Input integer (0 to stop):8Input integer (0 to stop):24Input integer (0 to stop):94Input integer (0 to stop):-1Input integer (0 to stop):43Input integer (0 to stop):13Input integer (0 to stop):0# of positives = 6 # of negatives = 1 Sum = 185 Average = 26.43

This is programming challenge #7 from chapter 5

Write a program that calculates how much a person would earn over a period of time if his or her salary is one penny the first day, two pennies the second day, and continues to double each day. The program should proceed as follows:

- Ask the user for the number of days worked, and allow them to enter
it. You may assume this will be an integer
- A valid entry must be 1 or more days, so whenever the user enters a valid that is not positive (1 or more), print an error message and make them re-enter

- Display a table showing how much the salary was for each day
- Display the total pay at the end of the period
- All monetary outputs should be in dollar and cents notation (not just
number of pennies), in this format:
`$ D.cc`, where D is the number of dollars, and cc is the cents (always two digits). Examples:Valid: $ 1.34 , $ 0.05 , $ 123.45

Please enter the number of days worked:-1Invalid number of days. Try again Please enter the number of days worked:0Invalid number of days. Try again Please enter the number of days worked:5Day Amount Earned ------------------------------------------- 1 $ 0.01 2 $ 0.02 3 $ 0.04 4 $ 0.08 5 $ 0.16 Total earnings: $ 0.31

Please enter the number of days worked:18Day Amount Earned ------------------------------------------- 1 $ 0.01 2 $ 0.02 3 $ 0.04 4 $ 0.08 5 $ 0.16 6 $ 0.32 7 $ 0.64 8 $ 1.28 9 $ 2.56 10 $ 5.12 11 $ 10.24 12 $ 20.48 13 $ 40.96 14 $ 81.92 15 $ 163.84 16 $ 327.68 17 $ 655.36 18 $ 1310.72 Total earnings: $ 2621.43

- No global variables
- All input/output must be done with
`cin`/`cout`objects, from the`iostream`library - You may only use the
`iostream`library (you should not need any others for these tasks) - Readable and well-documented source code

Submit only your source code files through the web submission page. This will consist of the following files:

sum.cpp numbers.cpp pennies.cpp