Create util.cpp

Changes

1 changed files (+7/-0)

• Miscellaneous/util.cpp (new)
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    + template <class BidirectionalIterator> // Coordinate compression + void compress (BidirectionalIterator first, BidirectionalIterator last) { + vector<int> tmp(first, last); + sort(tmp.begin(), tmp.end()); + tmp.resize(unique(tmp.begin(), tmp.end()) - tmp.begin()); + for (auto it = first; it != last; it++) *it = lower_bound(tmp.begin(), tmp.end(), *it) - tmp.begin(); + }