ol.1.5.cpp

#include "stdafx.h"
#include <iostream>
#include <string>
#include <vector>
#include <sstream>

using namespace std;

vector<double> strToIntVector(string& str) {
	vector<double> numbers;
	stringstream ss(str);

	double n;
	while(ss >> n) {
		numbers.push_back(n);
	}

	return numbers;
}

int _tmain(int argc, _TCHAR* argv[])
{
	string userInput;

	cout << "Write a array of numbers like this: \n1 2 3 4 5 6 7 8 9 10 \n\nYour array: ";
	getline(cin, userInput);
	//cout << userInput;

	vector<double> numbers;
	numbers = strToIntVector(userInput);
	
	int count = 0;
	double sum = 0;
	for (int i = 0; i < numbers.size(); i+=3) {
		sum += numbers[i];
		count++;
	}

	cout << "count: " << count << endl;
	cout << "sum: " << sum << endl;

	int a;
	cin >> a;
	return 0;
}