bool compare(Meeting *a, Meeting *b){

    return a->start<b->start || (a->start==b->start && a->end<b->end);
}
int getMaxMeetings(vector<Meeting*> &meetings) {

    sort(meetings.begin(),meetings.end(),compare);
    int start=0,end=0,count=0;
    for(auto i:meetings){
        Meeting *temp=i;
        if(start==0 || temp->start>end){
            start=temp->start,end=temp->end;
            count++;
        }
    }
    return count;
}