Project 1

Live Batch: Esakki Vigneshwaran

Answer:

Project -1:

Program:

#include<iostream> //Header Files
#include<string.h> //Header File Include string definition
#include<fstream> //Header file for File operation
using namespace std;

int main() //Driver code
{
string* Result = new string[5 * 3]; // dynamically allocation of memory
int Laptop[3],Mouse[3],Headset[3],Laptop_bag[3],Adapter[3],Vendor1[5],Vendor2[5]; // creating different array
int s,Vendor1_Total,Vendor2_Total; // local variables

fstream user_input;
user_input.open("User_inputs.txt",ios::out); //opening file in write mode
if(!user_input)
{
cout<<"File not created\n"; // if not created
}
else
{
cout<<"file creation done\n"; // after successfully created
}

while(1) // starting a while loop for displaying menu again and again
{
// Creating menu for user
cout<<"Press 1 to type commodities and purchase Items"<<endl;
cout<<"Press 2 to Enter Vendor quotations"<<endl;
cout<<"Press 3 to find best vendor (Only select when you have enter commodities and vendors data"<<endl;
cout<<"Press 0 to exit"<<endl;
cin>>s;
user_input << "Selected option" << endl;
user_input << s << endl; // taking 's' as input to take next step in loop
if (s == 0) // is 's' equal to zero then break loop. and terminate program
{
break;
}
else if (s == 1) // is 's' equal to 1
{
cout<<"Please enter the name of commodities"<<endl;
user_input << "Name of commodities" << endl;
for (int i = 0; i < 5; i++) // here this for for loop is for taking item name from user
{
for (int j = 0; j < 1; j++)
{
cin>> *(Result + i*3 + j); // assign values to the allocated memory for commodities only
user_input << *(Result + i*3 + j) << endl;
}
}
cout<<"Enter number of Laptop Ramu,Raju and Shyam wants to purchase"<<endl; // taking value for laptops
user_input << "Laptop" << endl;
for(int i=0;i<3;i++)
{
cin>>Laptop[i];
user_input <<Laptop[i] << endl;
}
cout<<"Enter number of Mouse Ramu,Raju and Shyam want to purchase"<<endl; // taking value for mouses
user_input << "Mouse" << endl;
for(int i=0;i<3;i++)
{
cin>>Mouse[i];
user_input <<Mouse[i] << endl;
}
cout<<"Enter number of Headset Ramu,Raju and Shyam want to purchase"<<endl; // taking value for headset
user_input << "Headest" << endl;
for(int i=0;i<3;i++)
{
cin>>Headset[i];
user_input <<Headset[i] << endl;
}
cout<<"Enter number of Laptop Bag Ramu,Raju and Shyam want to purchase"<<endl; // taking value for labtop bag
user_input << "Laptop Bag" << endl;
for(int i=0;i<3;i++)
{
cin>>Laptop_bag[i];
user_input <<Laptop_bag[i] << endl;
}
cout<<"Enter number of Adapter Ramu,Raju and Shyam want to purchase"<<endl; // taking value for adapter
user_input << "Adapter" << endl;
for(int i=0;i<3;i++)
{
cin>>Adapter[i];
user_input << i << endl;
user_input <<Adapter[i] << endl;
}

}

else if (s == 2) // is 's' equal to 2 then taking values for both Vendors Quotations
{
cout<<"Enter Vendor-1 Quotations"<<endl;
user_input << "Vendor-1 Quotations" << endl;
for (int i=0;i<5;i++) // for vender-1
{
cin>>Vendor1[i];
user_input <<Vendor1[i] << endl;
}
Vendor1_Total = Vendor1[0] + Vendor1[1] + Vendor1[2] + Vendor1[3] + Vendor1[4];
cout<<"Enter Vendor-2 Quotations"<<endl;
user_input << "Vendor2 Quotations" << endl;
for (int i=0;i<5;i++) // for vendor-2
{
cin>>Vendor2[i];
user_input <<Vendor2[i] << endl;
}
Vendor2_Total = Vendor2[0] + Vendor2[1] + Vendor2[2] + Vendor2[3] + Vendor2[4];

}
else if ( s == 3) // after selecting 1 and 2 user then select 's' equal to 3 then calculation take place
{
if (Vendor1_Total < Vendor2_Total) // printing results
{
cout<<"The best vendor for Ramu is Vender-1"<<endl;
cout<<"The best vendor for Ramu is Vender-1"<<endl;
cout<<"The best vendor for Ramu is Vender-1"<<endl;
}
else
{
cout<<"The best vendor for Ramu is Vender-2"<<endl;
cout<<"The best vendor for Ramu is Vender-2"<<endl;
cout<<"The best vendor for Ramu is Vender-2"<<endl;
}
}
else // for invalid data
cout<<"Invalid input please try again"<<endl;
}

return 0;

} //End of the body