P77227: Salta, salta

#include <iostream>
#include <vector>
using namespace std;

string sortida(int p, vector<int>& v) {
       int tam = v.size();
       vector<bool> aux(tam, false);
       while(not aux[p]) {
                 aux[p] = true;
                 if (v[p] > 0) {
                      if (p + v[p] >= tam) return "dreta";
                      p += v[p];
                 }
                 else if (v[p] < 0) {
                      if (p + v[p] < 0) return "esquerra";
                      p += v[p];
                 }
       }
       return "mai";
}

//JosepRivaille