Write a program that tells what coins to give out for
as change from 1 cent to 99 cents. Use coin denominations of 25
cents (quarters), 10 cents (dimes), and 1 cent (pennies) only.
Include a loop that lets the user repeat this computation for new
input values until the user says he or she wants to end the
program.
Solution Demo
Hello I am the coin machine! I will give you the least number of
coins for your change.
How many cents of change do you need? (Please enter from 1 to
99)
-10
You are welcome to give me money! Otherwise please enter a number from 1 to 99.
How many cents of change do you need? (Please enter
from 1 to 99)
200
Sorry I can only give out less than 1 dollar of change.
How many cents of change do you need? (Please enter
from 1 to 99)
86
86 cents can be given as:
3 Quarters
1 Dime
1 Penny
Want to get change again?
y
How many cents of change do you need? (Please enter
from 1 to 99)
25
25 cents can be given as:
1 Quarter
Want to get change again?
n
Requirements
Your program will behave exactly as the Solution Demo above.
If user input is invalid, prints appropriate message
and ask them to enter another number (i.e. they do not need to
confirm they want another chance)
Assume they will always input an integer, appropriate
message for different types of invalid inputs will be different
(e.g. when input < 0, input ==0, and input > 99).
Exact coins are output. Do not include the coin
denomination if 0 of them is needed. For example, do not include
something like 0 Dime.
Use correct singular and plural noun forms. For
example, 3 Pennies and not 3 Penny.
Implement at least one function with pass-by-reference
parameters.
Comments for all functions (including main()) will
follow the format as shown in suggested functions compute_coins
& output_coins.
Loop until user decided they want to stop the
program.
Function Suggestions
Your program can use the following functions among
others:
// ======================================================
// Function: compute_coins
// Purpose: calculate num (the number of coins of coin_value
// cents) from amount_left, update amount_left, and print
// out how many and which coin denomination the decreased
// amount is changed to.
// Assumptions:
// (1) coin_value is either 1, 10, or 25
// Parameters:
// (1) coin_value - coin denomiation value
// (2) num - maximum number of coins of denomination
// coin_value cents that can be obtained from amount_left
// (3) amount_left - how many cents are left to be changed
// Calls:
// output_coins
// ======================================================
void compute_coins(int coin_value, int& num, int&
amount_left);
For example, suppose the value of the
variable amount_left is 86 . Then, after the
following call:
compute_coins(25, number, amount_left);
The value of number will be 3 and the value
of amount_left will be 11 (because if you take
3 quarters from 86 cents, that leaves 11 cents). Hints: Use
integer division and the % operator to implement the compute_coins
function.
// ======================================================
// Function: output_coins
// Purpose: print out num followed by appropriate noun form
// of pennies, dimes, or quarters
// Assumptions:
// (1) coin_value is either 1, 10, or 25
// Parameters:
// (1) coin_value - coin denomiation value
// (2) num - number of coin_value coins
// ======================================================
void output_coins(int coin_value, int num);
For example:
output_coins(25, 3);
will output:
3 Quarters
Note: Could you plz go through this code and let me know
if u need any changes in this.Thank You
=================================
#include <fstream>
#include <iostream>
#include <iomanip>
#include <cstring>
#include <cstdlib>
#include <ctime>
#include <vector>
using namespace std;
void compute_coins(int coin_value, int& num, int&
amount_left);
void output_coins(int coin_value, int num);
int main() {
//Declaring variables
int quarters,dimes,pennies,cents;
char ch;
cout<<"Hello I am the coin machine! I will give
you the least number of coins for your change."<<endl;
while(true)
{
while(true)
{
cout<<"How many cents of change do you need?
(Please enter from 1 to 99)"<<endl;
cin>> cents;
if(cents<1)
{
cout<<"You
are welcome to give me money! Otherwise please enter a number from
1 to 99."<<endl;
}
else if(cents>99)
{
cout<<"Sorry I can only
give out less than 1 dollar of change."<<endl;
}
else
break;
}
cout<<cents<<" cents can be given
as:"<<endl;
compute_coins(25,quarters,cents);
compute_coins(10,dimes,cents);
compute_coins(1,pennies,cents);
output_coins(25,quarters);
output_coins(10,dimes);
output_coins(1,pennies);
cout<<"Want to get change
again?"<<endl;
cin>>ch;
if(ch!='Y' &&
ch!='y')
{
break;
}
}
return 0;
}
void compute_coins(int coin_value, int& num, int&
amount_left)
{
num=amount_left/coin_value;
amount_left=amount_left-(num*coin_value);
}
void output_coins(int coin_value, int num)
{
if(coin_value==25 || coin_value==10 ||
coin_value==1)
{
if(coin_value==25)
{
if(num==1)
{
cout<<num<<" Quarter"<<endl;
}
else if(num>1)
{
cout<<num<<" Quarters"<<endl;
}
}
else if(coin_value==10)
{
if(num==1)
{
cout<<num<<" Dime"<<endl;
}
else if(num>1)
{
cout<<num<<" Dimes"<<endl;
}
}
else if(coin_value==1)
{
if(num==1)
{
cout<<num<<" Penny"<<endl;
}
else if(num>1)
{
cout<<num<<" Pennies"<<endl;
}
}
}
}
=====================================
output:
=====================Could you plz rate me well.Thank You
C:\Program Files (x86)\Dev-Cpp\MinGW64\bin\CentsToQuarters DimesCents.exe Hello I am the coin machine! I will give you the least number of coins for your change. How many cents of change do you need? (Please enter from 1 to 99) -10 You are welcome to give me money! Otherwise please enter a number from 1 to 99. How many cents of change do you need? (Please enter from 1 to 99) 200 Sorry I can only give out less than 1 dollar of change. How many cents of change do you need? (Please enter from 1 to 99), 86 3 Quarters 1 Dime 1 Penny Want to get change again? How many cents of change do you need? (Please enter from 1 to 99) 25 1 Quarter Want to get change again? Process exited after 29.78 seconds with return value o Press any key to continue ...
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