Project 1

Esakki Vigneswaran:Live Batch

A):

#include <iostream> // header file
#include<fstream> //library for file handling operation
#include<cstring> //library for string operation
#define M 5 //defining Macro
#define N 3 //defining Macro
using namespace std;
int main() //main function
{
string* A=new string[M*N]; //dynamically allocated memory of size M*new
int Laptop[3],Mouse[3],Headset[3],Laptop_bag[3],Adaptor[3]; //array declaration for commodities
int s,k;
int vendor1_total,vendor2_total; //array declaration for vendor
int num[2][2];
ofstream outdata;
outdata.open("commodities.txt"); //opening file "commodities.txt"
//outputs
cout<<" Select from below menu: "<<endl;
cout<<"1.Press 1 to select the Commodities to be purchased: "<<endl;
cout<<"2.Press 2 to select the Vendor quotation: "<<endl;
cout<<"3.Press 3 to find the best vendor(choose only when you have entered the commodities and vendor data)"<<endl;

cout<<"0.Exit: press 0 "<<endl;

start:

cout<<endl<<" Option : ";
cin>>s;
outdata<<"Selected option : ";
outdata<<s<<endl;

switch(s) //switch statement
{
case 1:
cout<<endl<<" Enter the name of Commodities :";
outdata<<" Name of the Commodities"<<endl;
for(int i=0; i<M; i++) //conditional statement
{
for (int j=0; j<1; j++) //conditional statement
{
cin>>*(A + i*N + j);
outdata<<*(A + i*N + j)<<endl;
}
}

outdata<<endl;
cout<<endl;
goto start; //unconditional jump to the start
break;

case 2:
cout<<endl<<" Enter Vendor 1 quotation:"<<endl;
outdata<<endl<<" Vendor 1 quotation as per commodities :"<<endl;
for(int i=0; i<M;i++) //conditional statement
{
for (int j=1;j<2;j++) //conditional statement
{
cin>>*(A + i*N + j);
outdata<<*(A + i*N + j)<<endl;
}
}

cout<<endl<<" Enter Vendor 2 quotation:"<<endl;
outdata<<endl<<" Vendor 2 quotation as per commodities :"<<endl;
for(int i=0; i<M;i++) //conditional statement
{
for (int j=2;j<3;j++) //conditional statement
{
cin>>*(A + i*N + j);
outdata<<*(A + i*N + j)<<endl;
}
}

goto start;
break; //unconditional jump to the start

case 3:
cout<<endl<<" Enter the number of laptops 'Ramu', 'Raju' & 'Shyam' want to purchase : ";
cout<<endl;
outdata<<" Number of Laptop 'Ramu', 'Raju' & 'Shyam' want to purchase"<<endl;
for(int i=0;i<3;i++) //conditional statement
{
cin>>Laptop[i]; outdata<<Laptop[i]<<endl;
}
cout<<endl<<" Enter the number of Mouse 'Ramu', 'Raju' & 'Shyam' want to purchase : ";
cout<<endl;
outdata<<" Number of Mouse 'Ramu', 'Raju' & 'Shyam' want to purchase"<<endl;
for(int i=0;i<3;i++)
{cin>>Mouse[i];outdata<<Mouse[i]<<endl;}

cout<<endl<<" Enter the number of headsets 'Ramu', 'Raju' & 'Shyam' want to purchase : ";
cout<<endl;
outdata<<endl<<" Number of headsets 'Ramu', 'Raju' & 'Shyam' want to purchase"<<endl;
for(int i=0;i<3;i++)
{cin>>Headset[i];outdata<<Headset[i]<<endl;}

cout<<endl<<" Enter the number of Laptop bags 'Ramu', 'Raju' & 'Shyam' want to purchase";
cout<<endl;
outdata<<endl<<" Number of Laptop bags 'Ramu', 'Raju' & 'Shyam' want to purchase"<<endl;
for(int i=0;i<3;i++)
{cin>>Laptop_bag[i];outdata<<Mouse[i]<<endl;}

cout<<endl<<" Enter the number of Adaptor 'Ramu', 'Raju' & 'Shyam' want to purchase";
cout<<endl;
outdata<<endl<<" Number of Adaptor 'Ramu', 'Raju' & 'Shyam' want to purchase"<<endl;
for(int i=0;i<3;i++)
{cin>>Adaptor[i];outdata<<Mouse[i]<<endl;}


for(int i=0;i<M;i++) //conditional statement
{
for(int j=1;j<3;j++) //conditional statement
{
num[i][j]=stoi(*(A+i*N+j));
}
}
for(int k=0; k<3; k++) //conditional statement
{
if(k==0) //conditional statement
{
cout<<" Preffered Vendor for Ramu :-";
}
else if(k==1) //conditional statement
{
cout<<" Preffered Vendor for Raju :-";
}
else //conditional statement
{
cout<<" Preffered Vendor for Shyam :-";
}
}

vendor1_total=Laptop[k]*num[0][1]+Mouse[k]*num[1][1]+Headset[k]*num[2][1]+Laptop_bag[k]*num[3][1]+Adaptor[k]*num[4][1];

vendor2_total=Laptop[k]*num[0][2]+Mouse[k]*num[1][2]+Headset[k]*num[2][2]+Laptop_bag[k]*num[3][2]+Adaptor[k]*num[4][2];

if(vendor1_total<vendor2_total) //conditional statement
{
cout<<"Vendor1"<<endl;
}
else //conditional statement
{
cout<<"Vendor2"<<endl;
}

break;

case 0:
exit(0);
default: //default statement for switch case
cout<<"Invalid selection:\n"<<endl;
goto start; //unconditional jump to the start
}
return 0;
}

Output: