3 Implement the UnsortedList class to store a list of number

3. Implement the UnsortedList class to store a list of numbers that are input into the list from data.txt.

- create a main.cpp file that gets the numbers from the file

- insert the number 7 into the list

- insert another number 300 into the list

- delete the number 6 from the list

- print out the following:

   --the entire list

   - the greatest

   - the least

2. There should be four files, the main.cpp, UnsortedList.cpp, ItemType.h, and the output file two called outfile2.txt

- Yes you need to make your program output an \"outfile2.txt\"

Contents of “data.txt

10   8    250 800 -1   6

Solution

main.cpp:

#include <iostream>
#include <fstream>
#include <list>
#include <vector>

int main ()
{
std::list<int> mylist;
std::list<int>::iterator it;
std::fstream myfile(\"data.txt\");
std::ofstream myfile1(\"output2.txt\");
int a;
while (myfile >> a)
{
mylist.push_back(a);
}
it = mylist.begin();
std::cout << \'\ \';
std :: cout << \"Initial List:\";
for (it=mylist.begin(); it!=mylist.end(); ++it)
std::cout << \' \' << *it;
std::cout << \'\ \';
std::cout << \'\ \';
std :: cout << \"Insert 7:\";
mylist.insert (it,7);
for (it=mylist.begin(); it!=mylist.end(); ++it)
std::cout << \' \' << *it;
std::cout << \'\ \';
std::cout << \'\ \';
std :: cout << \"Intest 300:\";
mylist.insert (it,300);
for (it=mylist.begin(); it!=mylist.end(); ++it)
std::cout << \' \' << *it;
std::cout << \'\ \';
std::cout << \'\ \';
std :: cout << \"Delete 6:\";
mylist.remove(6);
for (it=mylist.begin(); it!=mylist.end(); ++it)
std::cout << \' \' << *it;
std::cout << \'\ \';
std::cout << \'\ \';
std::cout << \"Final list:\";
for (it=mylist.begin(); it!=mylist.end(); ++it)
std::cout << \' \' << *it;
myfile1 << *it << std::endl;
std::cout << \'\ \';
std::cout << \'\ \';

return 0;
}

UnsortedList.cpp:

#include <iostream>
#include <fstream>
#include <list>
#include <vector>

int main ()
{
std::list<int> mylist;
std::list<int>::iterator it;
std::fstream myfile(\"output2.txt\");
int a;
int largest;
while (myfile >> a)
{
mylist.push_back(a);
}
it = mylist.begin();
for (it=mylist.begin(); it!=mylist.end(); ++it)
if (*it>largest){
largest=*it;
}
std::cout <<\"Largest is:\";
std::cout <<largest;
std::cout << \'\ \';
  
return 0;
}

data.txt:

10   8    250 800 -1   6

output2.txt:

10 8 250 800 -1 7 300