misc/offset_vector.hpp

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• Last update: 2023-07-25 00:50:50+07:00
• Include: #include "misc/offset_vector.hpp"

Code

template <typename V>
struct offset_vector {
  // Index should be in [minIndex, maxIndex].
  // minIndex and maxIndex can be negative.
  offset_Vector(int minIndex, int maxIndex) {
    x.resize(maxIndex - minIndex + 1);
    offset = minIndex;
  }

  V& operator[](int index) { return x[index - offset]; }

  auto begin() { return x.begin(); }
  auto end() { return x.end(); }
  auto size() { return x.size(); }

 private:
  vector<V> x;
  int offset;
};

#line 1 "misc/offset_vector.hpp"
template <typename V>
struct offset_vector {
  // Index should be in [minIndex, maxIndex].
  // minIndex and maxIndex can be negative.
  offset_Vector(int minIndex, int maxIndex) {
    x.resize(maxIndex - minIndex + 1);
    offset = minIndex;
  }

  V& operator[](int index) { return x[index - offset]; }

  auto begin() { return x.begin(); }
  auto end() { return x.end(); }
  auto size() { return x.size(); }

 private:
  vector<V> x;
  int offset;
};

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