TP T-3 Z6

#include <iostream>
#include <string>
#include <stdexcept>

int BrojRijeci(std::string s)
{
    int counter(0);
    for(unsigned int i(0); i < s.length(); i++)
    {
        while(s.at(i) == ' ' && i < s.length())
            i++;
        if(i == s.length())
            break;
        counter++;
        while(s.at(i) != ' ' && i < s.length()-1)
            i++;
    }
    return counter;
}

std::string IzdvojiRijec(std::string s, int n)
{
    if(n < 1 || n > BrojRijeci(s)) throw std::domain_error("Parametar n nije u dozvoljenom opsegu!");
    int counter(0);
    for(unsigned int i(0); i < s.length(); i++)
    {
        while(s.at(i) == ' ' && i < s.length())
            i++;
        counter++;
        int j(i);
        int br_slova(0);
        while(s.at(i) != ' ' && i < s.length())
        {
            br_slova++;
            if(i == s.length()-1)
                break;
            i++;
        }
        if(counter == n)
            return std::string(s.substr(j, br_slova));
    }
}

int main()
{
    try
    {
        std::cout << IzdvojiRijec("testiramo haha xxssss1", 2);
    }
    catch(std::domain_error izuzetak)
    {
        std::cout << izuzetak.what();
    }
    return 0;
}