I am using c++ Here is the problem Reuse your code from part A. Find the item wi

Question

I am using c++

Here is the problem

Reuse your code from part A. Find the item with the most profit and make that item. Repeat this process 20 times and show your total profit over the period. However, after making an item, the cost of the materials you buy increases by 10%. If multiple materials are used in a single recipe, each the cost is increased multiple times. For example, making a “Spear” in “items1.txt” takes 2 pieces of “Wood”. Each “Wood” initially costs 2.5. Buying the first piece of wood increases this from 2.5 to 2.75 and the second increases it from 2.75 to 3.025. This price increase is applied after you buy the wood. So your the first “Spear” made has a wood cost of 2 x 2.5 = 5, while the second “Spear” has a wood cost of 2 x 3.025 = 6.05. If no items make profit, simply make the first item on the list. Example 1 (user input is underlined):

What file to load? items1.txt

Time 1: Making Spear, total profit = 40.2

Time 2: Making Spear, total profit = 78.8

Time 3: Making Spear, total profit = 115.525

Time 4: Making Spear, total profit = 150.046

Time 5: Making Spear, total profit = 181.976

Time 6: Making Spear, total profit = 210.849

Time 7: Making Spear, total profit = 236.113

Time 8: Making Spear, total profit = 257.108

Time 9: Making Spear, total profit = 273.043

Time 10: Making Spear, total profit = 282.975

Time 11: Making Spear, total profit = 285.772

Time 12: Making Wood, total profit = 285.772

Time 13: Making Wood, total profit = 285.772

Time 14: Making Wood, total profit = 285.772

Time 15: Making Wood, total profit = 285.772

Time 16: Making Wood, total profit = 285.772

Time 17: Making Wood, total profit = 285.772

Time 18: Making Wood, total profit = 285.772

Time 19: Making Wood, total profit = 285.772

Time 20: Making Wood, total profit = 285.772

Example 2 (user input is underlined):

What file to load? items2.txt

Time 1: Making Scare_Crow, total profit = 100.58

Time 2: Making Scare_Crow, total profit = 199.216

Time 3: Making Scare_Crow, total profit = 295.713

Time 4: Making Scare_Crow, total profit = 389.856

Time 5: Making Scare_Crow, total profit = 481.409

Time 6: Making Scare_Crow, total profit = 570.114

Time 7: Making Scare_Crow, total profit = 655.682

Time 8: Making Scare_Crow, total profit = 737.801

Time 9: Making Scare_Crow, total profit = 816.124

Time 10: Making Scare_Crow, total profit = 890.268

Time 11: Making Scare_Crow, total profit = 959.815

Time 12: Making Scare_Crow, total profit = 1024.3

Time 13: Making Scare_Crow, total profit = 1083.22

Time 14: Making Substitute_Teacher, total profit = 1138.72

Time 15: Making Substitute_Teacher, total profit = 1190.77

Time 16: Making Scare_Crow, total profit = 1240.51

Time 17: Making Cat_Toy, total profit = 1289.79

Time 18: Making Cat_Toy, total profit = 1338.63

Time 19: Making Cat_Toy, total profit = 1386.76

Time 20: Making Cat_Toy, total profit = 1433.75

Here is my code so far

#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
#include <algorithm>
#include <sstream>

using namespace std;

string findnextstring(string str, int beginindex)

{

int z=0;
z=str.find(' ',beginindex);
z=z-beginindex;
str=str.substr(beginindex,z);   
return str;
}

int dividestring(string str2, string a[], int maxsize)
{
int y;
int num = 0;
for (y=0; y<maxsize; y++)
{
a[y] = findnextstring(str2,num);
num = num + a[y].length() + 1;
if(num >= str2.length())
{
y++;
}
}   
  
return y;

}

int main()
{
ifstream thefile;
string filename;
cout << "What file to load? ";
cin >> filename;
thefile.open(filename.c_str());
if (thefile.fail())
{
cout << "ERROR";
exit(1);

}
string itemsname[50];
double itemsvalue[50];
double profit[50];
string myrecap[50];
   string rname = myrecap[0];
int itemcount = 0;
string myfilelines;
while(getline(thefile, myfilelines))
{
if(myfilelines.substr(0,5) == "Item:")
{
int begin = myfilelines.find_first_of(' ') + 1;
int nextfreespace = myfilelines.find(" ", begin);
           itemsvalue[itemcount] = atof(myfilelines.substr(nextfreespace).c_str());
           itemsname[itemcount] = myfilelines.substr (begin, myfilelines.find_first_of(' ', begin) - begin);
profit[itemcount]=0;
itemcount++;
}
else if(myfilelines.substr(0,7) == "Recipe:")
{
           int maxsize = myfilelines.length();
int count = dividestring(myfilelines,myrecap,maxsize);
double profit1 = 0;
for(int k=2; k< count; k++)
{
               for(int i= 0; i<itemcount; i++)
{
                   if((myrecap[k] == itemsname[i]) && (myrecap[k] != "+") && (myrecap[k] != ";"))
{   
profit1 += itemsvalue[i];   
}
}

}
for(int i=0; i<itemcount; i++)
{
if((myrecap[1] == itemsname[i]))
{   
profit[i]=itemsvalue[i]-profit1;   
}
}   
}
}
for(int i=0; i<itemcount; i++)
{
       cout << "Making " << itemsname[i] << ", " << "profit = " << profit[i]<<endl;
}
thefile.close();

return 0;

}

here are the files items1.txt and items2.txt

items1.txt

items2.txt

Explanation / Answer

#include <iostream>
#include <fstream>
#include <cstdlib>
#include <string>
#include <algorithm>
#include <sstream>
using namespace std;
string findnextstring(string str, int beginindex){
int z=0;
string str1;
z=str.find(' ',beginindex);
z=z-beginindex;
return str.substr(beginindex,z);   
}
int dividestring(string str2, string a[], int maxsize){
int y;
int num = 0;
for (y=0; y<maxsize; y++){
a[y] = findnextstring(str2,num);
num = num + a[y].length() + 1;
if(num >= str2.length()){
y++;
}
}   
return y;
}
int main(){
  
  
try
{
ifstream thefile;
string filename;
cout << "What file to load? ";
cin >> filename;
thefile.open(filename.c_str());
if (thefile.fail()){
cout << "ERROR";
}
string itemsname[50];
double itemsvalue[50];
double profit[50];
string myrecap[50];
string rname = myrecap[0];
int itemcount = 0;
string myfilelines;
while(getline(thefile, myfilelines)){
if(myfilelines.substr(0,5) == "Item:"){
int begin = myfilelines.find_first_of(' ') + 1;
int nextfreespace = myfilelines.find(" ", begin);
itemsvalue[itemcount] = atof(myfilelines.substr(nextfreespace).c_str());
itemsname[itemcount] = myfilelines.substr (begin, myfilelines.find_first_of(' ', begin) - begin);
profit[itemcount]=0;
itemcount++;
} else if(myfilelines.substr(0,7) == "Recipe:"){
int maxsize = myfilelines.length();
int count = dividestring(myfilelines,myrecap,maxsize);
double profit1 = 0;
for(int k=2; k< count; k++){
for(int i= 0; i<itemcount; i++){
if((myrecap[k] == itemsname[i]) && (myrecap[k] != "+") && (myrecap[k] != ";")){   
profit1 += itemsvalue[i];   
}
}
}
for(int i=0; i<itemcount; i++){
if((myrecap[1] == itemsname[i])){   
profit[i]=itemsvalue[i]-profit1;   
}
}   
}
}
for(int i=0; i<itemcount; i++){
cout << "Making " << itemsname[i] << ", " << "profit = " << profit[i]<<endl;
}
thefile.close();
return 0;
}
catch (std::exception const &exc)
{
std::cerr << "Exception caught " << exc.what() << " ";
}
  
  
}

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.