TopCoder Training——How To Find a Solution

BusinessTasks - SRM 236 Div 1:

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#include <iostream>
#include <cstdio>
#include <cstring>
#include <set>
#include <map>
#include <cmath>
#include <string>
#include <vector>
#include <utility>
#include <algorithm>
using namespace std;

//#define DEBUG
class BusinessTasks{
public:
    string getTask(vector <string> list, int n){
        int s = 0;
        while(list.size() > 1){
            s = (s+n-1) % list.size();
            list.erase(list.begin()+s);
        }
        return  list[0];
    }
};