finalchild
/ segment_tree.cpp
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June 28, 2019 10:03
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| template<typename T, const T& Combine(const T&, const T&)> | |
| class segment_tree { | |
| darray<T> v; | |
| T default_value; | |
| T combine_considering_default(const T& left_value, const T& right_value) const { | |
| if (left_value == default_value) { | |
| return right_value; | |
| } else if (right_value == default_value) { | |
| return left_value; | |
| } else { |