Project | Food Delivery System in C++

Department of Computer Science and Engineering

Course Name: Data Structures
Course Code: CSE207
Section 3
Project: Food Delivery system

Submitted by:

Name:    Inteser Islam Khan
ID:      2019-1-60-043
Name:    Jannatul Ferdous
ID:      2019-2-60-010

Introduction:

There is a food delivery organization that offers many kinds of foods for home delivery and each client gives an order to buy food. Its employees will search for the required food upon customers' request on a First Come First Served basis. The food delivery organization has the following requirements:

• There are many kinds of foods in the food delivery organization’s inventory. They may have more than one food item from each kind and they want to store each of the food.

• The customers have to organize as FCFS basis

In this project, we had to do the followings:

• Reserve different kinds of foods detail in linked list
• Store the information of customer’s order in queue
• Store the information of ordered food per customer in stack
• Build a report that will show the daily and monthly selling reports of foods

Topics:

To solve this problem, we used some terms such as Linked list, Stack, Queue etc.

• Linked List: A linked list is a sequence of data structures, which are connected together via links. Linked List is a sequence of links that contain items. Each link contains a connection to another link. Linked list is the second most-used data structure after array.
  In our project, we had to use linked list to store/reserve food details.

• Stack: A stack is a linear data structure that follows the Last in, First out principle (i.e. the last added elements are removed first). This abstract data type​ can be implemented in C in multiple ways.
  In our project, we had to Store the information of ordered food per customer in stack

• Queue: A queue is a useful data structure in programming. It is similar to the ticket queue outside a cinema hall, where the first person entering the queue is the first person who gets the ticket. Queue follows the First in First Out (FIFO) rule - the item that goes in first is the item that comes out first.
  In our project, we had to store customer info in Queue.

Main menu:

The main menu contains Food Menu/Food List, Take Order, Sell Report

• Food List: In food delivery service there should be a food menu from which the buyer can choose which food they want to order.

• Sell Report: This contains the total sales of the food delivery service in daily and monthly. It also contains customer information such as name and amount.

Source Code:

#include<bits/stdc++.h> using namespace std; #define el '\n' #define SIZE 5 struct Food{ string name; double price; int quantity; int code; Food*next; }; struct Order{ vector <pair<int,int>>order_infor; int total_price; Order*next; }; int items[SIZE], front = -1, rear = -1; string str[SIZE]; int day=0; Order* hd=NULL; Order*taill=NULL; Food* head=NULL; vector<string>foodtype{"Biriyani","Fast food","Drinks","Dessert"}; long long daily=0,monthly=0; void order_inf(vector<pair<int,int>>v,int money) { if(hd==NULL) { taill->next=NULL; taill->order_infor=v; taill->total_price=money; hd=taill; } else { Order*tt=new Order; taill->next=tt; tt->order_infor=v; tt->total_price=money; tt->next=NULL; taill=tt; } } int enQueue(string name,int value) { if (rear == SIZE - 1) printf("\nQueue is Full!!"); else { if (front == -1) front = 0; rear++; items[rear] = value; str[rear] = name; } } void display() { printf("\t*Customer Info*\n"); cout<<"|Name|\t\t|Sell|"<<el; if (rear == -1) { printf(" NO customer Info\n"); } else { int i; for (i = front; i <= rear; i++) cout<<str[i]<<"\t\t"<<items[i]<<el; } printf("\n"); } void F_information() { Food* food1=new Food; Food* food2=new Food; Food* food3=new Food; Food* food4=new Food; Food* food5=new Food; Food* food6=new Food; Food* food7=new Food; Food* food8=new Food; head=food1; food1->name="Kacci Biriyani"; food1->code=1; food1->price=15; food1->quantity=5; food1->next=food2; food2->name="Chiken Biriyani"; food2->code=2; food2->price=13; food2->quantity=5; food2->next=food3; food3->name="Pizza"; food3->code=3; food3->price=15; food3->quantity=5; food3->next=food4; food4->name="Burger"; food4->code=4; food4->price=10; food4->quantity=5; food4->next=food5; food5->name="Borhani"; food5->code=5; food5->price=5; food5->quantity=10; food5->next=food6; food6->name="Coca-cola"; food6->code=6; food6->price=5; food6->quantity=10; food6->next=food7; food7->name="Jorda"; food7->code=7; food7->price=6; food7->quantity=10; food7->next=food8; food8->name="Firni"; food8->code=8; food8->price=5; food8->quantity=10; food8->next=NULL; } void sell_report() { cout<<el<<el<<"--------SELL REPORT------"<<el; cout<<"Daily sell :"<<daily<<" BDT"<<el; cout<<"monthly sell:"<<monthly<<" BDT"<<el<<el; display(); } void take_order() { int order,customer=0,sell=0; string name; day++; cout<<el<<"Enter Customer Name: "; cin>>name; cout<<"Number of Order: "; cin>>order; vector<pair<int,int>>vp; cout<<"Food Code and Quantity: "; for(int i=0;i<order;i++) { int c,q; cin>>c>>q; vp.push_back({c,q}); } cout<<el<<"----------Successfully Ordered!----------"<<el; cout<<"--We only have cash on delivery Service--"<<el; cout<<el; for(auto u:vp) { Food*tm=head; while(tm!=NULL) { if(tm->code==u.first) { tm->quantity=tm->quantity-u.second; sell+=(tm->price*u.second); } tm=tm->next; } } daily+=sell; monthly+=sell; if(day==10)daily=0; if(day==300)monthly=0; enQueue(name,sell); sell=0; } void F_print() { int x=0; int i=0; Food*tmp=head; cout<<el<<el<<"-------------------------------"<<el; cout<<"-------------------------------"<<el; while(tmp!=NULL) { if(x%2==0){ cout<<"------"<<foodtype[i]<<"-------"<<el; i++; } cout<<el; cout<<"Food Name :"<<tmp->name<<el; cout<<"Food Price :"<<tmp->price<<" BDT"<<el; cout<<"Food code :"<<tmp->code<<el; cout<<"Food Quantitiy :"<<tmp->quantity<<" Unite"<<el; cout<<el; tmp=tmp->next; x++; } cout<<"-------------------------------"<<el; cout<<"-------------------------------"<<el<<el<<el; free(tmp); x=0; i=0; } void menu(){ cout<<"-------Food Delivery System--------"<<el; cout<<el; cout<<"<1>Food Menu\t <2>Take order"<<el<<el; cout<<"<3>Sell Report\t <0>Exit"<<el<<el; } int main() { F_information(); menu(); int choice; cout<<"Input your choice: "; while(cin>>choice) { if(choice==1)F_print(); else if(choice==0)break; else if(choice==2)take_order(); else if(choice==3)sell_report(); menu(); cout<<"Input Your choice: "; } }

Limitation:

• The Food menu is short only added 8 types of food but it can be modified later.
• In the sell Report, the customer information is kept as customer name and their total spend.
• Per day this system can take 10 orders and monthly 300 orders.