Project 1
PROGRAM-
#include <iostream>//header file
#include <fstream>//uses the H file extension ans is considered a Developer file.
#include <string> //string header file
// `M × N` matrix for storing data
#define M 5
#define N 3
using namespace std; //declare namespace
int main()
{
string* A = new string[M * N]; // dynamically allocate memory of size `M × N`
// declarations
int Laptop[3], Mouse[3], Headset[3], Laptop_Bag[3], Adapter[3]; //Array declaration
int s;
int vendor1_total, vendor2_total;
int num[2][2];
ofstream outdata;
outdata.open("Project_1_sample.txt");
// Menu
start:
cout<<"Select from below menu: \n";
cout<<"1. Select to Enter Commodities to be purchasedn \n";
cout<<"2. Select to Enter Vendor quotationsn \n";
cout<<"3. Select to find best vendor (Only select when you have enterd commodities and vendors data)\n";
cout<<"0. Exit\n";
cout<<endl;
cin>>s;
outdata << "Selected option" << endl;
outdata << s << endl;
// operations for selected choice from menu
switch(s) //switch block for switching case to another case as per condition.
{
case 1:
cout<<"Please enter the name of commodities:";
cout<<endl;
outdata << "\nName of commodities" << endl;
for (int i = 0; i < M; i++)
{
for (int j = 0; j < 1; j++)
{
cin>> *(A + i*N + j); // assign values to the allocated memory for commodities only
outdata << *(A + i*N + j) << endl;
}
}
outdata<<endl;
cout<<endl;
goto start; //jump statement to go start
break; //the loop iterations stop there and control returns from the loop immediately to the first statement after the loop.
case 2:
cout<<"\nPlease enter the Vendor 1 quotations (Strictly follow the sequence as per commodities entered): \n";
cout<<endl;
outdata << "\nVendor 1 quotations (Sequence: As per commodities entered)" << endl;
for (int i = 0; i < M; i++)
{
for (int j = 1; j < 2; j++)
{
cin>> *(A + i*N + j); // assign values to the allocated memory for vendor 1 quotations
outdata << *(A + i*N + j) << endl;
}
}
cout<<"\nPlease enter the Vendor 2 quotations (Strictly follow the sequence as per commodities entered): \n";
cout<<endl;
outdata << "\nVendor 2 quotations (Sequence: As per commodities entered)" << endl;
for (int i = 0; i < M; i++)
{
for (int j = 2; j < 3; j++)
{
cin>> *(A + i*N + j); // assign values to the allocated memory for vendor 2 quotations
outdata << *(A + i*N + j) << endl;
}
}
outdata<<endl;
cout<<endl;
goto start; //jump statement to go start
break; //the loop iterations stop there and control returns from the loop immediately to the first statement after the loop.
case 3:
cout<<"\nEnter the no. of laptops 'Ramu', 'Raju' and 'Shyam' want to be bought (Strictly follow sequence as Ramu, raju and Shyam):\n";
cout<<endl;
outdata << "\nNo. of laptops 'Ramu', 'Raju' and 'Shyam' want to be bought (Sequence: Ramu, raju and Shyam):"<<endl;
for(int i=0; i<3; i++)
{cin>>Laptop[i]; outdata << Laptop[i] << endl;} // Taking input and at the same time writing input data into file.
cout<<"\nEnter the no. of Mouse 'Ramu', 'Raju' and 'Shyam' want to be bought (Strictly follow sequence as Ramu, raju and Shyam):\n";
cout<<endl;
outdata << "\nNo. of Mouse 'Ramu', 'Raju' and 'Shyam' want to be bought (Sequence: Ramu, raju and Shyam):"<<endl;
for(int i=0; i<3; i++)
{cin>>Mouse[i]; outdata << Mouse[i] << endl;} // Taking input and at the same time writing input data into file.
cout<<"\nEnter the no. of Headset 'Ramu', 'Raju' and 'Shyam' want to be bought (Strictly follow sequence as Ramu, raju and Shyam):\n";
cout<<endl;
outdata << "\nNo. of Headset 'Ramu', 'Raju' and 'Shyam' want to be bought (Sequence: Ramu, raju and Shyam):"<<endl;
for(int i=0; i<3; i++)
{cin>>Headset[i]; outdata << Headset[i] << endl;} // Taking input and at the same time writing input data into file.
cout<<"\nEnter the no. of Laptop_Bag 'Ramu', 'Raju' and 'Shyam' want to be bought (Strictly follow sequence as Ramu, raju and Shyam):\n";
cout<<endl;
outdata << "\nNo. of Laptop_Bag 'Ramu', 'Raju' and 'Shyam' want to be bought (Sequence: Ramu, raju and Shyam):"<<endl;
for(int i=0; i<3; i++)
{cin>>Laptop_Bag[i]; outdata << Laptop_Bag[i] << endl;} // Taking input and at the same time writing input data into file.
cout<<"\nEnter the no. of Adapter 'Ramu', 'Raju' and 'Shyam' want to be bought (Strictly follow sequence as Ramu, raju and Shyam):\n";
cout<<endl;
outdata << "\nNo. of Adapter 'Ramu', 'Raju' and 'Shyam' want to be bought (Sequence: Ramu, raju and Shyam):"<<endl;
for(int i=0; i<3; i++)
{cin>>Adapter[i]; outdata << Adapter[i] << endl;} // Taking input and at the same time writing input data into file.
//converting strings to integer. As we have created array of strings while taking commodity and vendor inputs
for (int i = 0; i < M; i++)
{
for (int j = 1; j < 3; j++)
{num[i][j] = stoi(*(A + i*N + j));}
}
for(int k=0; k<3; k++)
{
//0 indicate correspond to Ramu, 1 to Raju and 2 to Shyam.
if (k==0)
{
cout << "\nThe best vendor for Ramu is : ";
}
else if (k==1)
{
cout << "\nThe best vendor for Raju is : ";
}
else
{
cout << "\nThe best vendor for Shyam is : ";
}
vendor1_total= Laptop[k]*num[0][1] + Mouse[k]*num[1][1] + Headset[k]*num[2][1] + Laptop_Bag[k]*num[3][1] + Adapter[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] + Adapter[k]*num[4][2];
if(vendor1_total<vendor2_total)
{
cout<<" Vendor 1 "<<endl; //if less than value of vendor1_total as compare to vendor2_total,its printing
}
else
{
cout<<" Vendor 2 "<<endl; // else its printing because greater value of vendor1_total as compare to vendor2_total
}
}
break; //the loop iterations stop there and control returns from the loop immediately to the first statement after the loop.
case 0:
exit(0); //if we select option 0 its access exit action.
default:
cout<<"Invalid selection!\n\n"; //default other option its showing invalid selection
goto start; //jump statement to go start
}
return 0;
}OUTPUT-
