Scientific Programming Homework Assignment 3 Program Design and Coding II due Fe

Question

Scientific Programming

Homework Assignment 3    Program Design and Coding II   

due February 18

Grading:   design 1 point

      C++ program 2 points

      testing, including test data 1 point .5 p3 points for correct program

this may be a group assignment …no more than 2 programmers to a group.

Running the faucet while you are brushing your teeth can waste a lot of water. You will design, code and test a program to determine just how much water you actually waste. The program will input the amount of time spent brushing teeth per day. It will print the amount of water wasted in gallons and in liters. (1 gallon = 3.78 liters), for one brushing. It will also print the amount of water wasted in a week, and in a year.

The normal flow of water through a faucet is approximately 2.2 gallons per minute*.   You can use this amount for water flow or get a more accurate measure for your own home and use that.

submit design, source code and copy of the output window

fill out sheet on the next page to submit

*if you want a more accurate measurement put a container under the faucet and run water for 10 seconds. Measure the amount in the container and multiply by 6 to get the number of gallons per minute.

Homework Assignment 3      How much water do I waste?

Programmers    _______________________________________________

                            _______________________________________________

Design:

                Output:         insert here

                Input:          insert here

                Processing steps, pseudo code or flowchart:

                                    insert here

Source code: paste a copy of your source code here

test data:        Insert your test data here (various times and expected output)

output:            Insert at least two copies of your output screen here:

                            (note: you can use the clipping tool to copy the output screen and paste

directly in this document; also ALT+PrtScr works to do same)

                                      To take a screenshot of only one window

Tap or click the window you want to capture.

Press Alt+PrtScn. A picture of the window is copied and you can paste it wherever you'd like.

Explanation / Answer

#include <iostream>
using namespace std;

int main() {
   // your code goes here
   int op;
   float min,rate=2.2;
    double dg,wg,yg,dl,wl,yl;  
   cout<<"amount of time spent brushing teeth per day";
   cin>>min;
   cout<<" do you want to enter flow rate (1: yes)?";
   cin>>op;
   if(op == 1)
        cin>>rate;
   dg = rate * min;
   wg = dg*7;
   yg = dg * 365;
   dl = dg *3.78;
   wl = wg *3.78;
   yl = yg *3.78;
   cout<<" The amount of water wasted in a week is "<<wg<<" gallons and "<<wl<<" in litres";
   cout<<" The amount of water wasted in a week is "<<yg<<" gallons and "<<yl<<" in litres";
   return 0;
}

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