T Query()

in rlmeta/cc/segment_tree.h [148:167]


  T Query(int64_t l, int64_t r) const {
    assert(l < r);
    if (l <= 0 && r >= size_) {
      return values_[1];
    }
    T ret = identity_element_;
    l |= capacity_;
    r |= capacity_;
    while (l < r) {
      if (l & 1) {
        ret = op_(ret, values_[l++]);
      }
      if (r & 1) {
        ret = op_(ret, values_[--r]);
      }
      l >>= 1;
      r >>= 1;
    }
    return ret;
  }