BuyOneGetOneFree.cpp

#include <vector>
#include <list>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <ctime>

using namespace std;


class BuyOneGetOneFree {
public:
	int buy(vector <int> prices) {
		sort(prices.rbegin(),prices.rend());

		int sum = 0;
        for (int i = 0; i < prices.size(); i += 2) {
            sum += prices[i];
        }
        return sum;
	}
};


// BEGIN KAWIGIEDIT TESTING
// Generated by KawigiEdit 2.1.4 (beta) modified by pivanof
bool KawigiEdit_RunTest(int testNum, vector <int> p0, bool hasAnswer, int p1) {
	cout << "Test " << testNum << ": [" << "{";
	for (int i = 0; int(p0.size()) > i; ++i) {
		if (i > 0) {
			cout << ",";
		}
		cout << p0[i];
	}
	cout << "}";
	cout << "]" << endl;
	BuyOneGetOneFree *obj;
	int answer;
	obj = new BuyOneGetOneFree();
	clock_t startTime = clock();
	answer = obj->buy(p0);
	clock_t endTime = clock();
	delete obj;
	bool res;
	res = true;
	cout << "Time: " << double(endTime - startTime) / CLOCKS_PER_SEC << " seconds" << endl;
	if (hasAnswer) {
		cout << "Desired answer:" << endl;
		cout << "\t" << p1 << endl;
	}
	cout << "Your answer:" << endl;
	cout << "\t" << answer << endl;
	if (hasAnswer) {
		res = answer == p1;
	}
	if (!res) {
		cout << "DOESN'T MATCH!!!!" << endl;
	} else if (double(endTime - startTime) / CLOCKS_PER_SEC >= 2) {
		cout << "FAIL the timeout" << endl;
		res = false;
	} else if (hasAnswer) {
		cout << "Match :-)" << endl;
	} else {
		cout << "OK, but is it right?" << endl;
	}
	cout << "" << endl;
	return res;
}
int main() {
	bool all_right;
	all_right = true;
	
	vector <int> p0;
	int p1;
	
	{
	// ----- test 0 -----
	int t0[] = {47};
			p0.assign(t0, t0 + sizeof(t0) / sizeof(t0[0]));
	p1 = 47;
	all_right = KawigiEdit_RunTest(0, p0, true, p1) && all_right;
	// ------------------
	}
	
	{
	// ----- test 1 -----
	int t0[] = {10,20};
			p0.assign(t0, t0 + sizeof(t0) / sizeof(t0[0]));
	p1 = 20;
	all_right = KawigiEdit_RunTest(1, p0, true, p1) && all_right;
	// ------------------
	}
	
	{
	// ----- test 2 -----
	int t0[] = {10,20,30,20};
			p0.assign(t0, t0 + sizeof(t0) / sizeof(t0[0]));
	p1 = 50;
	all_right = KawigiEdit_RunTest(2, p0, true, p1) && all_right;
	// ------------------
	}
	
	{
	// ----- test 3 -----
	int t0[] = {5,7,13,2,9};
			p0.assign(t0, t0 + sizeof(t0) / sizeof(t0[0]));
	p1 = 22;
	all_right = KawigiEdit_RunTest(3, p0, true, p1) && all_right;
	// ------------------
	}
	
	{
	// ----- test 4 -----
	int t0[] = {100,100,100,100,100,100};
			p0.assign(t0, t0 + sizeof(t0) / sizeof(t0[0]));
	p1 = 300;
	all_right = KawigiEdit_RunTest(4, p0, true, p1) && all_right;
	// ------------------
	}
	
	if (all_right) {
		cout << "You're a stud (at least on the example cases)!" << endl;
	} else {
		cout << "Some of the test cases had errors." << endl;
	}
	return 0;
}
// END KAWIGIEDIT TESTING
//Powered by KawigiEdit 2.1.4 (beta) modified by pivanof!