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#include lt;algorithmgt; #include lt;iostreamgt; #include lt;time.hgt; #include CSVparser.
#include <algorithm>
#include <iostream>
#include <time.h>
#include "CSVparser.hpp"
using namespace std;
//============================================================================
// Global definitions visible to all methods and classes
//============================================================================
// forward declarations
double strToDouble(string str, char ch);
// define a structure to hold bid information
struct Bid {
string bidId; // unique identifier
string title;
string fund;
double amount;
Bid() {
amount = 0.0;
}
};
//============================================================================
// Static methods used for testing
//============================================================================
/**
* Display the bid information to the console (std::out)
*
* @param bid struct containing the bid info
*/
void displayBid(Bid bid) {
cout << bid.bidId << ": " << bid.title << " | " << bid.amount << " | "
<< bid.fund << endl;
return;
}
/**
* Prompt user for bid information using console (std::in)
*
* @return Bid struct containing the bid info
*/
Bid getBid() {
Bid bid;
cout << "Enter Id: ";
cin.ignore();
getline(cin, bid.bidId);
cout << "Enter title: ";
getline(cin, bid.title);
cout << "Enter fund: ";
cin >> bid.fund;
cout << "Enter amount: ";
cin.ignore();
string strAmount;
getline(cin, strAmount);
bid.amount = strToDouble(strAmount, '$');
return bid;
}
/**
* Load a CSV file containing bids into a container
*
* @param csvPath the path to the CSV file to load
* @return a container holding all the bids read
*/
vector<Bid> loadBids(string csvPath) {
cout << "Loading CSV file " << csvPath << endl;
// Define a vector data structure to hold a collection of bids.
vector<Bid> bids;
// initialize the CSV Parser using the given path
csv::Parser file = csv::Parser(csvPath);
try {
// loop to read rows of a CSV file
for (int i = 0; i < file.rowCount(); i++) {
// Create a data structure and add to the collection of bids
Bid bid;
bid.bidId = file[i][1];
bid.title = file[i][0];
bid.fund = file[i][8];
bid.amount = strToDouble(file[i][4], '$');
//cout << "Item: " << bid.title << ", Fund: " << bid.fund << ", Amount: " << bid.amount << endl;
// push this bid to the end
bids.push_back(bid);
}
} catch (csv::Error &e) {
std::cerr << e.what() << std::endl;
}
return bids;
}
// FIXME (2a): Implement the quick sort logic over bid.title
/**
* Partition the vector of bids into two parts, low and high
*
* @param bids Address of the vector<Bid> instance to be partitioned
* @param begin Beginning index to partition
* @param end Ending index to partition
*/
int partition(vector<Bid>& bids, int begin, int end) {
}
/**
* Perform a quick sort on bid title
* Average performance: O(n log(n))
* Worst case performance O(n^2))
*
* @param bids address of the vector<Bid> instance to be sorted
* @param begin the beginning index to sort on
* @param end the ending index to sort on
*/
void quickSort(vector<Bid>& bids, int begin, int end) {
}
// FIXME (1a): Implement the selection sort logic over bid.title
/**
* Perform a selection sort on bid title
* Average performance: O(n^2))
* Worst case performance O(n^2))
*
* @param bid address of the vector<Bid>
* instance to be sorted
*/
void selectionSort(vector<Bid>& bids) {
}
/**
* Simple C function to convert a string to a double
* after stripping out unwanted char
*
* credit: http://stackoverflow.com/a/24875936
*
* @param ch The character to strip out
*/
double strToDouble(string str, char ch) {
str.erase(remove(str.begin(), str.end(), ch), str.end());
return atof(str.c_str());
}
/**
* The one and only main() method
*/
int main(int argc, char* argv[]) {
// process command line arguments
string csvPath;
switch (argc) {
case 2:
csvPath = argv[1];
break;
default:
csvPath = "eBid_Monthly_Sales_Dec_2016.csv";
}
// Define a vector to hold all the bids
vector<Bid> bids;
// Define a timer variable
clock_t ticks;
int choice = 0;
while (choice != 9) {
cout << "Menu:" << endl;
cout << " 1. Load Bids" << endl;
cout << " 2. Display All Bids" << endl;
cout << " 3. Selection Sort All Bids" << endl;
cout << " 4. Quick Sort All Bids" << endl;
cout << " 9. Exit" << endl;
cout << "Enter choice: ";
cin >> choice;
switch (choice) {
case 1:
// Initialize a timer variable before loading bids
ticks = clock();
// Complete the method call to load the bids
bids = loadBids(csvPath);
cout << bids.size() << " bids read" << endl;
// Calculate elapsed time and display result
ticks = clock() - ticks; // current clock ticks minus starting clock ticks
cout << "time: " << ticks << " clock ticks" << endl;
cout << "time: " << ticks * 1.0 / CLOCKS_PER_SEC << " seconds" << endl;
break;
case 2:
// Loop and display the bids read
for (int i = 0; i < bids.size(); ++i) {
displayBid(bids[i]);
}
cout << endl;
break;
// FIXME (1b): Invoke the selection sort and report timing results
// FIXME (2b): Invoke the quick sort and report timing results
}
}
cout << "Good bye." << endl;
return 0;
}
