Please post a flowchart related to the code below.

#include #include #include

#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 loadBids(string csvPath) { cout << "Loading CSV file " << csvPath << endl;

// Define a vector data structure to hold a collection of bids. vector 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 (unsigned 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 instance to be partitioned * @param begin Beginning index to partition * @param end Ending index to partition */

int partition(vector& bids, int begin, int end) {

int l = begin; int h = end;

int pivot = (begin + (end - begin) / 2); bool finished = false;

// this while loops continually increments the low point as long as it's below the pivot // then continually decrements the high point as long as it's above the pivot while(!finished) {

while(bids[l].title.compare(bids[pivot].title) < 0) { ++l; }

while(bids[pivot].title.compare(bids[h].title) < 0) { --h; }

if (l >= h) { finished = true; // if variable l is not greater than or equal to h the two bids are swapped } else { swap(bids[l] , bids[h]);

//bring end points closer to one another

++l; --h; } } return h; }

/** * 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 instance to be sorted * @param begin the beginning index to sort on * @param end the ending index to sort on */ void quickSort(vector& bids, int begin, int end) { unsigned int middle = 0;

// make sure the algorithm stops running if there are 1 or 0 bids left to sort

if (begin >= end) { return; }

// this code partitions the bids into lower and higher sections

middle = partition(bids, begin, end);

// function is called recursively to sort the individual partitions

// first call sorts the initial element to the midpoint

quickSort(bids, begin, middle);

// second call sorts the middle + 1th element to the endpoint quickSort(bids, middle + 1, 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 * instance to be sorted */ void selectionSort(vector& bids) { // this creates an index to the smallest minimum bid found unsigned int smallest; unsigned int largest = bids.size();

// place designates the position at which bids are sorted/unsorted for (unsigned place = 0; place < largest; ++place) { smallest = place;

for (unsigned j = place + 1; j < largest; ++j) { if (bids[j].title.compare(bids[smallest].title) < 0) { smallest = j; } }

if (smallest != place) swap(bids[place], bids[smallest]); }

}

/** * 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 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 (unsigned int i = 0; i < bids.size(); ++i) { displayBid(bids[i]); } cout << endl;

break;

// FIXME (1b): Invoke the selection sort and report timing results case 3: ticks = clock();

// call selectionSort method to sort the loaded bids selectionSort(bids);

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;

// FIXME (2b): Invoke the quick sort and report timing resultscase 3:

case 4: ticks = clock();

// call quickSort method to sort the loaded bids quickSort(bids, 0, bids.size() - 1);

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;

}

} cout << "Good bye." << endl;

return 0; }