• make lcp(hash, hash) available

• use __COUNTER__ to avoid shadowing

• fold requires ACC
• skip update lazy if group

add: extruct_by(range, key)

to be made

• support flexible composition (for https://atcoder.jp/contests/typical90/tasks/typical90_e)

• make EXCEPTION_VALUE instead of EXCEPTION_INT

• replace std::common_type_t<std::remove_cvref_t, ...> with std::common_type_t<decl, ...> (?)
• support step < 0

• remove unnecessary data of inner nodes

• switch hasher (hash64 or raw value) depending on whether the element is convertibe to value_type

• improve implementation of disjoint_sparse_table.

• verify

• add: set, reset

• stop using std::function

• ambiguous overload of erase

• change the args of pow methods from i64 to K (any std::integral type)
• assert k >= 0

• Reorganize commit messages written by workflows.

https://atcoder.jp/contests/typical90/tasks/typical90_ce

• _edges has to be cleared also

• TODO: remove inline from the graph mixin declared in structure/graph.hpp

• modify argument format from (b, *res) to (v, *sol, *system)