7. Hot Potato

#include <iostream>
#include <list>
#include <string>
#include <sstream>

std::list<std::string> readInput(std::string &turns) {
    std::list<std::string> names;
    std::string line;
    getline(std::cin, line);
    std::istringstream istr(line);
    std::string name;
    while (istr >> name) {
        names.push_back(name);
    }
    getline(std::cin, turns);
    return names;
}

std::string hotPotato(const int turns, std::list<std::string>& names) {
    int currTurns = turns;
    std::list<std::string>::iterator it = names.begin();
    currTurns--; //by pointing the first is one turn
    while (names.size() != 1) {
        if (currTurns == 0) {
            currTurns = turns;
            currTurns--;
            std::cout << "Removed " << *it << std::endl;
            it = names.erase(it);
            if (it == names.end()) {
                it = names.begin();
            }
            continue;
        }
        ++it;
        if (it == names.end()) {
            it = names.begin();
        }
        currTurns--;
    }
    return *it;
}

int main()
{
    std::string turnsStr;
    std::list<std::string> names = readInput(turnsStr);
    int turns = stoi(turnsStr);
    std::cout << "Last is " << hotPotato(turns, names);
}