USe data structures in the fallowing program. At least 2. Use the code below and

Question

USe data structures in the fallowing program. At least 2.

Use the code below and add data structures to it.

#include <iostream>
using namespace std;

int main()
{
string fname[20];
char minitial[20];
string lname[20];
double hours[20];
double rate[20];
double gross[20],stax[20],ftax[20],ufees[20],net[20];
double totalgross=0,avggross,overtime;
char op='y';
int i=0;
while(op=='y')
{
cout<<" Enter details of employee"<<i+1<<":";
cout<<" Enter First Name : ";
cin>>fname[i];
cout<<" Enter Middle Inital : ";
cin>>minitial[i];
cout<<" Enter Last Name : ";
cin>>lname[i];
l1 : cout<<" Enter Hours worked : ";
cin>>hours[i];
if(hours[i]<0 || hours[i]>60)
{
cout<<" Invalid data : Hours worked";
goto l1;
}
l2:cout<<" Enter Rate : ";
cin>>rate[i];
if(rate[i]<0 || rate[i]>50)
{
cout<<" Invalid data : Rate";
goto l2;
}
  
cout<<" Would you like to continue : (y or n)";
cin>>op;
i++;
}
  
int j = i;
for(i=0;i<j;i++)
{
if(hours[i]>40)
{
overtime = (hours[i]-40)*rate[i]*1.5;
hours[i] = 40;
}
else
overtime = 0;
gross[i] = (rate[i]*hours[i])+overtime;
stax[i] = gross[i]*6/100;
ftax[i] = gross[i]*12/100;
ufees[i] = gross[i]*2/100;
net[i] = gross[i]-(stax[i]+ftax[i]+ufees[i]);
totalgross += gross[i];
  
}
  
cout<<" Data housing corp.week payroll";
cout<<" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~";
cout<<" First Name MI Last Name Rate Hours Gross Pay State tax Federal Tax Union fees Net Pay ";
  
for(i=0;i<j;i++)
{
cout<<fname[i]<<" ";
cout<<minitial[i]<<" ";
cout<<lname[i]<<" ";
cout<<rate[i]<<" ";
cout<<hours[i]<<" ";
cout<<gross[i]<<" ";
cout<<stax[i]<<" ";
cout<<ftax[i]<<" ";
cout<<ufees[i]<<" ";
cout<<net[i]<<" ";
}
cout<<" Total gross pay "<<totalgross;
avggross = totalgross/j;
cout<<" Average gross pay "<<avggross;
}

Explanation / Answer

#include<iostream>
using namespace std;

/* defines the structure of a single linked list node*/
typedef struct list_node {

   string fname;
   char minitial;
   string lname;
   double hours;
   double rate;
   double gross,stax,ftax,ufees,net,totalgross;
   struct list_node *next; // pointer to next node in the list
}node;

/* create new node */
node *getNewNode(void) {
   node *new_node = new node;
   int overtime;
// taking user input and calculaating amount
   cout<<" Enter details of employee"":";
   cout<<" Enter First Name : ";
   cin>>new_node->fname;
   cout<<" Enter Middle Inital : ";
   cin>>new_node->minitial;
   cout<<" Enter Last Name : ";
   cin>>new_node->lname;
l1 : cout<<" Enter Hours worked : ";
     cin>>(new_node->hours);
     if(new_node->hours<0 || new_node->hours>60)
     {
         cout<<" Invalid data : Hours worked";
         goto l1;
     }
l2:cout<<" Enter Rate : ";
   cin>>new_node->rate;
   if(new_node->rate<0 || new_node->rate>50)
   {
       cout<<" Invalid data : Rate";
       goto l2;
   }

   if(new_node->hours>40)
   {
       overtime = (new_node->hours-40)*new_node->rate*1.5;
       new_node->hours = 40;
   }
   else
       overtime = 0;
   new_node->gross = (new_node->rate*new_node->hours)+overtime;
   new_node->stax = new_node->gross*6/100;
   new_node->ftax = new_node->gross*12/100;
   new_node->ufees = new_node->gross*2/100;
   new_node->net = (new_node->gross)-((new_node->stax)+(new_node->ftax)+(new_node->ufees));
   (new_node->totalgross) += (new_node->gross);
   new_node->next = NULL;
   return new_node;
}

/* displays the list elements */
void displayList(node *head) {
   cout << "Displaying List : ";
   cout<<" Name MI Last Name Rate Hours Gross_Pay State_tax f_tax ufee Net ";
   while (head != NULL) {
       cout<<head->fname<<" ";
       cout<<head->minitial<<" ";
       cout<<head->lname<<" ";
       cout<<head->rate<<" ";
       cout<<head->hours<<" ";
       cout<<head->gross<<" ";
       cout<<head->stax<<" ";
       cout<<head->ftax<<" ";
       cout<<head->ufees<<" ";
       cout<<head->net<<" ";
       head = head->next;
   }
}

/* insert a node at the beginning of the list */
node *insertNodeBeg(node *head) {
   node *ptr = getNewNode();
   if (head == NULL) { // if list is empty
       head = ptr;
   }
   else {
       ptr->next = head;
       head = ptr;
   }
   return head;
}

int main() {
   node *head = NULL;
   char op='y';
   while(op == 'y')
   {
       // head = insertNodeBeg(head);       // 7
       head = insertNodeBeg(head);       // 9 -> 7
       cout<<" enter y to continew ";
       cin>>op;
   }
   displayList(head);
   return 0;
}

/*
   sample OUTPUT:
   Enter details of employee:
   Enter First Name : joy

   Enter Middle Inital : k

   Enter Last Name : happy

   Enter Hours worked : 20

   Enter Rate : 3.5

   enter y to continew
   y

   Enter details of employee:
   Enter First Name : thomas

   Enter Middle Inital : k

   Enter Last Name : dev

   Enter Hours worked : 13

   Enter Rate : 2.5

   enter y to continew
   n
   Displaying List :

   Name    MI    Last Name    Rate    Hours    Gross_Pay   State_tax   f_tax   ufee   Net
   thomas   k   dev       2.5   13   32.5       1.95       3.9   0.65   26  
   joy       k   happy       3.5   20   70       4.2       8.4   1.4   56  

*/

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