LINQ Ruined My Favorite Interview Question

Re:LINQ Ruined My Favorite Interview Question by kragen on Friday July 12, 2013 @03:09AM (#6031310)

Not bad. I think it would be a little simpler and faster with:

    while (cin >> s) M[s]++;
    for (map<string,int>::iterator i = M.begin(); i != M.end(); i++) {
             S.insert(make_pair(i->second, i->first));
    }

But maybe there's a downside to that approach that isn't obvious to me?

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Re:LINQ Ruined My Favorite Interview Question by navinp1912 on Friday July 12, 2013 @07:40AM (#6032057)

If you move what while (topK--) into the map loop , it becomes an online code for topK whereas what you wrote is an offline . If you want offline then pushing it into a priority_queue and then popping it out would be much faster.

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