Design, implement and test a Ct+ program that reads a series of data records fro

Question

Design, implement and test a Ct+ program that reads a series of data records from a file and stores each record in a linked list (in ascending order by items number). After creating the linked list the program should traverse the list and print the report below. Record Description: ltem_ Number //unsigned integer Item_category // alpha_numeric ...4 chars ex. ELEC Item_Purchase Date II mm dd yyyy Item Cost Item Count Items SOLD // Float Il integer // integer Inventory Report Date: Jan. 16, 2018 Item Cost 200.50 100.00 Item Purchase Items e Item Item Number 232 345 Date Jan. 1, 2012 Dec. 1, 2016 Sold Age Revenue 6 201.00 2 $500.00 Total revenue 701.00 Age to the nearest year 2

Explanation / Answer

data.txt : ------------------>>>>>>>>>>>>.

232 ELEC 01 01 2012 100.50 34 2
345 ELEC 12 01 2016 100.01 12 5

program : --------------->>>>>>>>>>>>.

#include<iostream>
#include<fstream>
#include<string>

using namespace std;

struct Date{
int mm;
int dd;
int yy;
};

typedef struct Date date;

struct Item{
unsigned int item_no;
char item_cat[5];
date purchase_date;
float cost;
int count;
int sold;
struct Item *next;
};

typedef struct Item item;

string month_name[12] = {"jan.","feb.","mar.","apr.","may","jun.","jul.","aug.","sep.","oct.","nov.","dec."};

item* addNode(item *head,item *data,int count){
item *temp = head;
item *prev = NULL;
if(head == NULL){
  head = data;
  return head;
}
for(int i = 0;i<count;i++){
  if(temp->item_no >= data->item_no){
   if(prev == NULL){
    data->next = temp;
    head = data;
    return head;
   }
   else{
    data->next = prev->next;
    prev->next = data;
    return head;
   }
  }
  prev = temp;
  temp = temp->next;
}
prev->next = data;
return head;
}

void displayAllNode(item *head,int count){
cout<<" Item Item purchase    Item Items Item Item ";
cout<<" Number       Date          Cost Sold Age Revenue ";
item *temp = head;
for(int i = 0;i<count;i++){
  cout<<" "<<temp->item_no<<"           "<<month_name[temp->purchase_date.mm - 1]
   <<" "<<temp->purchase_date.dd<<","<<temp->purchase_date.yy<<" $"<<temp->cost
   <<" "<<temp->sold<<" "<<2018-temp->purchase_date.yy<<" "<<temp->cost*temp->sold<<" ";
  temp = temp->next;
}
}

item* loadFile(item *head,int &count){
ifstream file;
file.open("data.txt");
if(file.is_open()){
  while(!file.eof()){
   item *temp = new item;
   temp->next = NULL;
   file>>temp->item_no>>temp->item_cat>>temp->purchase_date.mm>>temp->purchase_date.dd>>temp->purchase_date.yy;
   file>>temp->cost>>temp->count>>temp->sold;
   head = addNode(head,temp,count);
   count = count + 1;
  }
  count--;
  file.close();
  return head;
}
else{
  cout<"check the data.txt file";
  file.close();
  return NULL;
}
}

int main(){
item *head = NULL;
int count = 0;
head = loadFile(head,count);

displayAllNode(head,count);

return 0;
}

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