answer.code: In constructor ‘LazySegmentTree<Info, Tag>::LazySegmentTree(int, Info)’:
answer.code:125:20: error: missing template arguments before ‘(’ token
  125 |         init(vector(n_, v_));
      |                    ^
answer.code: In member function ‘void LazySegmentTree<Info, Tag>::init(int, Info)’:
answer.code:132:20: error: missing template arguments before ‘(’ token
  132 |         init(vector(n_, v_));
      |                    ^
answer.code: In function ‘int main()’:
answer.code:320:19: error: ‘class std::multiset<int>’ has no member named ‘extract’
  320 |             setik.extract(seg[v].first);
      |                   ^~~~~~~
answer.code:321:22: error: ‘class std::multiset<int>’ has no member named ‘extract’
  321 |             setik_mx.extract(seg[v].second);
      |                      ^~~~~~~