// compiled by g++ -std=c++11 a.cpp
// try option 1 and option 2 in the main routine
// comment out one option

#include <iostream>
#include <vector>
#include <string>

using namespace std;

const string & findMaxWrong(const vector<string> &arr)
{
        string maxValue = arr[0];

        for (int i=1; i < arr.size (); i++) 
	        if (maxValue < arr[i]) 
		        maxValue = arr[i];
	return maxValue;
}

string findMax(const vector<string> &arr)
{
        string maxValue;

        for (int i=1; i < arr.size (); i++) 
                if (maxValue < arr[i]) 
		        maxValue = arr[i];
	return maxValue;
}

int main() 
{
        vector<string> a = {"ab", "bc", "ee"};

	cout << "from findMax: ";
	cout << findMax(a) << "\n";

	// option1
	cout << "from findMaxWrong: ";
	cout << findMaxWrong(a) << "\n";

	// option 2:
	//cout << "from findMaxWrong: " << findMaxWrong(a) << "\n";

	return 1;
}