struct Interval {     int start;     int end;     Interval() : start(0), end(0) {}     Interval(int s, int e) : start(s), end(e) {} }; int main() {     vector <Interval> vec;     Interval i;     char c=' ';     while (c!='\n')     {         scanf("%d,%d%c",&i.start,&i.end,&c);         vec.push_back(i);     }     Solution sol;     vec = sol.merge(vec);     for (vector<Interval>::iterator i = vec.begin(); i != vec.end(); i++)         cout << i->start << ','<<i->end<<' ';     cout<<endl;     system("pause");     return 0; }