Project 1

Live Batch

Submitted to: Essaki Vigneswaran

PROGRAM:

#include <iostream> // header file
#include <fstream> //file stream library for file operations
#include <string> //string library for string operations

using namespace std; //Use standard namespace

const int MAX_ROWS = 3; // Define a constant integer for maximum number of rows
const int MAX_COLS = 5; // Define a constant integer for maximum number of columns

void displayMenu() // Define function to display menu
{
cout << "Enter Commodities to be purchased"<<endl; //// Display menu option for entering commodities
cout << "Enter Vendor quotations"<<endl;
cout << "Exit"<<endl;
}

void inputCommodities(string *commodities) // Define function to input commodity data
{

for (int i = 0;i<MAX_COLS;i++) // Loop for through each column
{
cout<<"Enter commodity #"<<i + 1<< ": ";
getline(cin, commodities[i]); //Read commodity name from standard input and store in array
}

}

void inputVendorData(int **vendorData) // Define function to input vendor data
{
for (int i = 0;i< MAX_ROWS;i++) // Loop through each row
{
for (int j = 0;j<MAX_COLS;j++) // Loop through each column
{
cout<< "Enter vendor #"<<i + 1<<" price for commodity #"<<j + 1<< ": ";
cin>>vendorData[i][j]; // Read price from standard input and store in array

}
}
}

void displayResult(int **vendorData) // Define function to display best vendor
{
int total[MAX_ROWS] = {0}; // Define array for total prices for each vendor
for (int i = 0; i < MAX_ROWS; i++) // Loop through each row
{
for (int j = 0; j < MAX_COLS; j++) // Loop through each column
{
total[i] += vendorData[i][j]; // Add price to total for the corresponding vendor
}
}
int bestVendorIndex = 0; // Initialize best vendor index to first vendor
for (int i = 1; i < MAX_ROWS; i++) // Loop through each vendor starting from second
{
if (total[i] < total[bestVendorIndex]) // If total for current vendor is less than total for best vendor
{
bestVendorIndex = i; // Update best vendor index to current vendor
}
}
cout << "Best vendor: #" << bestVendorIndex + 1 << endl; // Display best vendor index
}

int main() // Define main function
{
string commodities[MAX_COLS]; // Define array for commodity data
inputCommodities(commodities); // Call function to input commodity data

int **vendorData; // Define 2D array for vendor data
vendorData = new int*[MAX_ROWS]; // Allocate memory for array
for (int i = 0; i < MAX_ROWS; i++) // Loop through each row
{
vendorData[i] = new int[MAX_COLS]; // Allocate memory for array
}

inputVendorData(vendorData); // Call function to input vendor data
displayResult(vendorData); // Call function to display best vendor

// Save data to
ofstream outfile("vendor_data.txt"); // create an output file stream object with file name "vendor_data.txt"
if (outfile.is_open()) // check if file is opened successfullyfile
{
for (int i = 0; i < MAX_COLS; i++) // loop through the commodities array
{
outfile << commodities[i] << " "; // write each commodity followed by a space to the file
}
outfile << endl; // write a new line to the file
for (int i = 0; i < MAX_ROWS; i++) // loop through the vendorData array
{
for (int j = 0; j < MAX_COLS; j++) // loop through the columns of each row of vendorData array
{
outfile << vendorData[i][j] << " "; // write each element followed by a space to the file
}
outfile << endl; // write a new line to the file
}
outfile.close(); // close the file
cout << "Data saved to file vendor_data.txt" << endl; // display a message that data has been saved to file
}
else // if file could not be opened
{
cout << "Error: could not open file" << endl; // display an error message
}

// Deallocate memory
for (int i = 0; i < MAX_ROWS; i++) // loop through the rows of vendorData array
{
delete[] vendorData[i]; // delete the memory allocated for each row of vendorData array
}
delete[] vendorData; // delete the memory allocated for the vendorData array

return 0; // exit the program with success status

}

OUTPUT:

Enter commodity #1: Laptop
Enter commodity #2: Mouse
Enter commodity #3: Headset
Enter commodity #4: Laptop Bag
Enter commodity #5: Adaptor
Enter vendor #1 price for commodity #1: 45000
Enter vendor #1 price for commodity #2: 1500
Enter vendor #1 price for commodity #3: 2500
Enter vendor #1 price for commodity #4: 1600
Enter vendor #1 price for commodity #5: 1200
Enter vendor #2 price for commodity #1: 43000
Enter vendor #2 price for commodity #2: 1200
Enter vendor #2 price for commodity #3: 3000
Enter vendor #2 price for commodity #4: 1000
Enter vendor #2 price for commodity #5: 1500
Enter vendor #3 price for commodity #1: 50000
Enter vendor #3 price for commodity #2: 2000
Enter vendor #3 price for commodity #3: 30000
Enter vendor #3 price for commodity #4: 1000
Enter vendor #3 price for commodity #5: 900
Best vendor: #2
Data saved to file vendor_data.txt

vendor_data.txt

Laptop Mouse Headset Laptop Bag Adaptor
45000 1500 2500 1600 1200
43000 1200 3000 1000 1500
50000 2000 3000 1000 900