diff --git a/library/data_structures/deque_op/queue_only.hpp b/library/data_structures/deque_op/queue_only.hpp
index 02b086ef..3405eb08 100644
--- a/library/data_structures/deque_op/queue_only.hpp
+++ b/library/data_structures/deque_op/queue_only.hpp
@@ -1,7 +1,7 @@
 #pragma once
 //! https://github.com/suisen-cp/cp-library-cpp/blob/main/library/datastructure/deque_aggregation.hpp
 //! @code
-//!   deq dq(a, [](auto x, auto y) {return min(x, y);});
+//!   deq dq(a, ranges::min);
 //! @endcode
 //! @time operations are O(1) ammortized
 //! @space O(n)
diff --git a/library/data_structures/rmq_inc.hpp b/library/data_structures/rmq_inc.hpp
index 8ee0e001..3b6f7351 100644
--- a/library/data_structures/rmq_inc.hpp
+++ b/library/data_structures/rmq_inc.hpp
@@ -1,12 +1,12 @@
 #pragma once
 //! @code
-//!   rmq_inc rmq3(a, ranges::min);
-//!   rmq_inc rmq4(a, [&](auto& x, auto& y) {
+//!   rmq_inc rmq1(a, ranges::min);
+//!   rmq_inc rmq2(a, [&](auto& x, auto& y) {
 //!     return min(x, y);
 //!   });
 //!   vector<rmq_inc<int, function<int(int, int)>>>
-//!     rmqs2(3, {{}, NULL});
-//!   rmqs2[1] = {a, ranges::min};
+//!     rmqs(3, {{}, NULL});
+//!   rmqs[1] = {a, ranges::min};
 //! @endcode
 //! @time O(nlogn + q)
 //! @space O(nlogn)
diff --git a/library/data_structures/seg_tree.hpp b/library/data_structures/seg_tree.hpp
index 4e50f537..6d2d781a 100644
--- a/library/data_structures/seg_tree.hpp
+++ b/library/data_structures/seg_tree.hpp
@@ -1,8 +1,8 @@
 #pragma once
 //! https://github.com/kth-competitive-programming/kactl/blob/main/content/data-structures/SegmentTree.h
 //! @code
-//!   tree st0(n, INT_MAX, ranges::min);
-//!   tree st(n, INT_MAX, [&](int x, int y) -> int {
+//!   tree st1(n, INT_MAX, ranges::min);
+//!   tree st2(n, INT_MAX, [&](int x, int y) -> int {
 //!     return min(x, y);
 //!   });
 //! @endcode
diff --git a/library/data_structures/seg_tree_inc.hpp b/library/data_structures/seg_tree_inc.hpp
index 022f751b..09b92211 100644
--- a/library/data_structures/seg_tree_inc.hpp
+++ b/library/data_structures/seg_tree_inc.hpp
@@ -1,11 +1,8 @@
 #pragma once
 //! https://codeforces.com/blog/entry/118682
 //! @code
-//!   tree_inc st3(n, int{}, ranges::min);
-//!   tree_inc st4(n, pii{}, [&](pii x, pii y) -> pii {
-//!     return min(x, y);
-//!   });
-//!   rep(i, 0, n) st3.update(i, a[i]);
+//!   tree_inc st(n, int{}, ranges::min);
+//!   rep(i, 0, n) st.update(i, a[i]);
 //! @endcode
 //! @time O(n + q log n)
 //! @space O(n)
diff --git a/library/data_structures/seg_tree_uncommon/find_first.hpp b/library/data_structures/seg_tree_uncommon/find_first.hpp
index 15b3266e..84b8abc7 100644
--- a/library/data_structures/seg_tree_uncommon/find_first.hpp
+++ b/library/data_structures/seg_tree_uncommon/find_first.hpp
@@ -1,7 +1,7 @@
 #pragma once
 //! @code
-//!   seg_tree st1(n);
-//!   st1.find_first(l, r, [&](ll x, int tl, int tr) ->
+//!   seg_tree st(n);
+//!   st.find_first(l, r, [&](ll x, int tl, int tr) ->
 //!   bool {
 //!   });
 //! @endcode
diff --git a/library/data_structures/seg_tree_uncommon/find_last.hpp b/library/data_structures/seg_tree_uncommon/find_last.hpp
index c344267a..08a015f5 100644
--- a/library/data_structures/seg_tree_uncommon/find_last.hpp
+++ b/library/data_structures/seg_tree_uncommon/find_last.hpp
@@ -1,7 +1,7 @@
 #pragma once
 //! @code
-//!   seg_tree st2(n);
-//!   st2.find_last(l, r, [&](ll x, int tl, int tr) ->
+//!   seg_tree st(n);
+//!   st.find_last(l, r, [&](ll x, int tl, int tr) ->
 //!   bool {
 //!   });
 //! @endcode
diff --git a/library/data_structures/uncommon/disjoint_rmq.hpp b/library/data_structures/uncommon/disjoint_rmq.hpp
index ccea631d..d18eb0b4 100644
--- a/library/data_structures/uncommon/disjoint_rmq.hpp
+++ b/library/data_structures/uncommon/disjoint_rmq.hpp
@@ -3,7 +3,7 @@
 //! Disjoint RMQ is like normal RMQ except
 //!   the 2 query ranges never overlap.
 //! @code
-//!   disjoint_rmq dis_rmq1(a, [&](int x, int y) {
+//!   disjoint_rmq rmq(a, [&](int x, int y) {
 //!     return 1LL*x*y%10;
 //!   });
 //! @endcode
diff --git a/library/data_structures/uncommon/disjoint_rmq_inc.hpp b/library/data_structures/uncommon/disjoint_rmq_inc.hpp
index 9d32ca15..25dd533f 100644
--- a/library/data_structures/uncommon/disjoint_rmq_inc.hpp
+++ b/library/data_structures/uncommon/disjoint_rmq_inc.hpp
@@ -3,7 +3,7 @@
 //! Disjoint RMQ is like normal RMQ except
 //!   the 2 query ranges never overlap.
 //! @code
-//!   disjoint_rmq dis_rmq2(a, [&](int x, int y) {
+//!   disjoint_rmq rmq(a, [&](int x, int y) {
 //!     return 1LL*x*y%10;
 //!   });
 //! @endcode
diff --git a/library/data_structures/uncommon/linear_rmq.hpp b/library/data_structures/uncommon/linear_rmq.hpp
index e3a6656f..bcf2e028 100644
--- a/library/data_structures/uncommon/linear_rmq.hpp
+++ b/library/data_structures/uncommon/linear_rmq.hpp
@@ -1,11 +1,11 @@
 #pragma once
 //! https://codeforces.com/blog/entry/125371?#comment-1173604
 //! @code
-//!   linear_rmq lr1(a, less());//right-most min
-//!   linear_rmq lr2(a, less_equal());//left-most min
-//!   linear_rmq lr3(a, greater());//right-most max
-//!   linear_rmq lr4(a, greater_equal());//left-most max
-//!   linear_rmq lr5(a, [&](auto& x, auto& y) {
+//!   linear_rmq rmq1(a, less());//right-most min
+//!   linear_rmq rmq2(a, less_equal());//left-most min
+//!   linear_rmq rmq3(a, greater());//right-most max
+//!   linear_rmq rmq4(a, greater_equal());//left-most max
+//!   linear_rmq rmq5(a, [&](auto& x, auto& y) {
 //!     return x < y;
 //!   });
 //! @endcode
diff --git a/library/graphs/bridges_cuts/block_vertex_tree.hpp b/library/graphs/bridges_cuts/block_vertex_tree.hpp
index 7ff403b9..66043a60 100644
--- a/library/graphs/bridges_cuts/block_vertex_tree.hpp
+++ b/library/graphs/bridges_cuts/block_vertex_tree.hpp
@@ -1,8 +1,9 @@
 #pragma once
 #include "cuts.hpp"
 //! @code
-//!   cuts cc(adj_c, m);
-//!   vector<vi> bvt = block_vertex_tree(adj_c, cc);
+//!   vector<vector<pii>> adj(n);
+//!   cuts cc(adj, m);
+//!   vector<vi> bvt = block_vertex_tree(adj, cc);
 //!   //to loop over each unique bcc containing a node u:
 //!   for (int bccid : bvt[v]) {
 //!     bccid -= n;
diff --git a/library/graphs/bridges_cuts/bridge_tree.hpp b/library/graphs/bridges_cuts/bridge_tree.hpp
index 9bd5d651..a1c9978f 100644
--- a/library/graphs/bridges_cuts/bridge_tree.hpp
+++ b/library/graphs/bridges_cuts/bridge_tree.hpp
@@ -1,8 +1,9 @@
 #pragma once
 #include "bridges.hpp"
 //! @code
-//!   bridges br(adj_br, m);
-//!   vector<vi> bt = bridge_tree(adj_br, br);
+//!   vector<vector<pii>> adj(n);
+//!   bridges br(adj, m);
+//!   vector<vi> bt = bridge_tree(adj, br);
 //! @endcode
 //! @time O(n + m)
 //! @space O(n)
diff --git a/library/graphs/bridges_cuts/bridges.hpp b/library/graphs/bridges_cuts/bridges.hpp
index cff3f8ed..b6b53221 100644
--- a/library/graphs/bridges_cuts/bridges.hpp
+++ b/library/graphs/bridges_cuts/bridges.hpp
@@ -1,16 +1,15 @@
 #pragma once
 //! https://cp-algorithms.com/graph/bridge-searching.html
 //! @code
-//!   vector<vector<pii>> adj_br(n);
+//!   vector<vector<pii>> adj(n);
 //!   rep (i, 0, m) {
 //!     int u, v;
 //!     cin >> u >> v;
 //!     u--, v--;
-//!     adj_br[u].emplace_back(v, i);
-//!     adj_br[v].emplace_back(u, i);
+//!     adj[u].emplace_back(v, i);
+//!     adj[v].emplace_back(u, i);
 //!   }
-//!   auto [num_ccs, is_bridge, br_id] =
-//!     bridges(adj_br, m);
+//!   auto [num_ccs, is_bridge, br_id] = bridges(adj, m);
 //! @endcode
 //! is_bridge[edge id] = 1 iff bridge edge
 //! br_id[v] = id, 0<=id<num_ccs
diff --git a/library/graphs/bridges_cuts/cuts.hpp b/library/graphs/bridges_cuts/cuts.hpp
index d86ce522..16c72675 100644
--- a/library/graphs/bridges_cuts/cuts.hpp
+++ b/library/graphs/bridges_cuts/cuts.hpp
@@ -1,16 +1,16 @@
 #pragma once
 //! https://cp-algorithms.com/graph/cutpoints.html
 //! @code
-//!   vector<vector<pii>> adj_c(n);
+//!   vector<vector<pii>> adj(n);
 //!   rep (i, 0, m) {
 //!     int u, v;
 //!     cin >> u >> v;
 //!     u--, v--;
 //!     //self edges not allowed
-//!     adj_c[u].emplace_back(v, i);
-//!     adj_c[v].emplace_back(u, i);
+//!     adj[u].emplace_back(v, i);
+//!     adj[v].emplace_back(u, i);
 //!   }
-//!   auto [num_bccs, is_cut, bcc_id] = cuts(adj_c, m);
+//!   auto [num_bccs, is_cut, bcc_id] = cuts(adj, m);
 //! @endcode
 //! is_cut[v] = 1 iff cut node
 //! bcc_id[edge id] = id, 0<=id<num_bccs
diff --git a/library/graphs/complement_graph_ccs.hpp b/library/graphs/complement_graph_ccs.hpp
index 0f31dd27..da6d5e6b 100644
--- a/library/graphs/complement_graph_ccs.hpp
+++ b/library/graphs/complement_graph_ccs.hpp
@@ -1,5 +1,6 @@
 #pragma once
 //! @code
+//!   vector<vi> adj(n);
 //!   auto cc_id = get_complement_graph_ccs(adj);
 //! @endcode
 //! 0<=cc_id[v]<number of connected components
diff --git a/library/graphs/dijkstra.hpp b/library/graphs/dijkstra.hpp
index f9adfc1f..7db38c7a 100644
--- a/library/graphs/dijkstra.hpp
+++ b/library/graphs/dijkstra.hpp
@@ -1,6 +1,7 @@
 #pragma once
 //! @code
-//!   auto d = dijkstra(adj_w, source);
+//!   vector<vector<pair<int, ll>>> adj(n);
+//!   auto d = dijkstra(adj, source);
 //! @endcode
 //! d[v] = min dist from source->..->v
 //! @time O(n + (m log m))
diff --git a/library/graphs/hopcroft_karp.hpp b/library/graphs/hopcroft_karp.hpp
index 8c26dd9e..919c1982 100644
--- a/library/graphs/hopcroft_karp.hpp
+++ b/library/graphs/hopcroft_karp.hpp
@@ -1,6 +1,7 @@
 #pragma once
 //! https://github.com/foreverbell/acm-icpc-cheat-sheet/blob/master/src/graph-algorithm/hopcroft-karp.cpp
 //! @code
+//!   vector<vi> adj(lsz);
 //!   adj[l].push_back(r); // add edge l <-> r
 //!   auto [matching_size, to_r, to_l,
 //!     mvc_l, mvc_r] = hopcroft_karp(adj, rsz);
diff --git a/library/graphs/strongly_connected_components/scc.hpp b/library/graphs/strongly_connected_components/scc.hpp
index 81bf8777..75baecd3 100644
--- a/library/graphs/strongly_connected_components/scc.hpp
+++ b/library/graphs/strongly_connected_components/scc.hpp
@@ -1,6 +1,7 @@
 #pragma once
 //! https://github.com/kth-competitive-programming/kactl/blob/main/content/graph/SCC.h
 //! @code
+//!   vector<vi> adj(n);
 //!   auto [num_sccs, scc_id] = sccs(adj);
 //! @endcode
 //! scc_id[v] = id, 0<=id<num_sccs
diff --git a/library/math/matrix_related/row_reduce.hpp b/library/math/matrix_related/row_reduce.hpp
index 22394986..1ad29ee7 100644
--- a/library/math/matrix_related/row_reduce.hpp
+++ b/library/math/matrix_related/row_reduce.hpp
@@ -1,7 +1,7 @@
 #pragma once
 #include "../mod_int.hpp"
 //! @code
-//!   auto [rank1, det1] = row_reduce(mat, cols);
+//!   auto [rank, det] = row_reduce(mat, cols);
 //! @endcode
 //! columns [0,cols) of mat represent a matrix
 //! columns [cols,m) of mat are also
diff --git a/library/math/matrix_related/solve_linear_mod.hpp b/library/math/matrix_related/solve_linear_mod.hpp
index 1c6019af..600f0d1f 100644
--- a/library/math/matrix_related/solve_linear_mod.hpp
+++ b/library/math/matrix_related/solve_linear_mod.hpp
@@ -1,7 +1,7 @@
 #pragma once
 #include "row_reduce.hpp"
 //! @code
-//!   auto [rank2, det2, sol] = solve_linear_mod(mat, rhs);
+//!   auto [rank, det, sol] = solve_linear_mod(mat, rhs);
 //! @endcode
 //! for each i, 0<=i<n:
 //!   rhs[i] == sum over j of (mat[i][j]*sol[j])
diff --git a/library/math/matrix_related/xor_basis_ordered.hpp b/library/math/matrix_related/xor_basis_ordered.hpp
index 6031b8bb..a8f58b8e 100644
--- a/library/math/matrix_related/xor_basis_ordered.hpp
+++ b/library/math/matrix_related/xor_basis_ordered.hpp
@@ -2,9 +2,9 @@
 //! https://codeforces.com/blog/entry/68953
 //! https://github.com/ssk4988/Hackpack/blob/main/content/numerical/XORBasis.h
 //! @code
-//!   basis_ordered<int> b3;
-//!   basis_ordered<ll> b4;
-//!   basis_ordered<bitset<lg>> b5;
+//!   basis_ordered<int> b1;
+//!   basis_ordered<ll> b2;
+//!   basis_ordered<bitset<lg>> b3;
 //! @endcode
 const int lg = 60;
 template<class T> struct basis_ordered {
diff --git a/library/math/matrix_related/xor_basis_unordered.hpp b/library/math/matrix_related/xor_basis_unordered.hpp
index ed8e0e5e..01a114dc 100644
--- a/library/math/matrix_related/xor_basis_unordered.hpp
+++ b/library/math/matrix_related/xor_basis_unordered.hpp
@@ -4,6 +4,7 @@
 //! @code
 //!   basis<int> b1;
 //!   basis<ll> b2;
+//!   basis<dynamic_bitset<>> b3;
 //! @endcode
 //! b.shrink(v) == b.shrink(b.shrink(v))
 //! for x in b.b: (bit_floor(x)&b.shrink(v))==0
diff --git a/library/monotonic_stack/cartesian_binary_tree.hpp b/library/monotonic_stack/cartesian_binary_tree.hpp
index 0529da86..b9bad14a 100644
--- a/library/monotonic_stack/cartesian_binary_tree.hpp
+++ b/library/monotonic_stack/cartesian_binary_tree.hpp
@@ -2,8 +2,8 @@
 #include "monotonic_stack.hpp"
 //! @code
 //!   // right-most min is root
-//!   auto mono_le3 = mono_st(a, less());
-//!   auto p1 = cart_binary_tree(mono_le3);
+//!   auto le = mono_st(a, less());
+//!   auto p = cart_binary_tree(le);
 //!
 //!   // less_equal() -> left-most min is root
 //!   // greater() -> right-most max is root
diff --git a/library/monotonic_stack/cartesian_k_ary_tree.hpp b/library/monotonic_stack/cartesian_k_ary_tree.hpp
index c9049f91..45390b7d 100644
--- a/library/monotonic_stack/cartesian_k_ary_tree.hpp
+++ b/library/monotonic_stack/cartesian_k_ary_tree.hpp
@@ -20,9 +20,9 @@
 //! p[5] = 9
 //!
 //! @code
-//!     auto l = mono_st(a, less()), p =
-//!     cart_k_ary_tree(a, l); // min cart tree auto l =
-//!     mono_st(a, greater()), p = cart_k_ary_tree(a, l);
+//!     auto le = mono_st(a, less()), p =
+//!     cart_k_ary_tree(a, le); // min cart tree auto le =
+//!     mono_st(a, greater()), p = cart_k_ary_tree(a, le);
 //!     // max cart tree bool is_node = (p[i] < i || a[i]
 //!     != a[p[i]]);
 //! @endcode
diff --git a/library/monotonic_stack/monotonic_range.hpp b/library/monotonic_stack/monotonic_range.hpp
index c429fcd2..0af8ffb9 100644
--- a/library/monotonic_stack/monotonic_range.hpp
+++ b/library/monotonic_stack/monotonic_range.hpp
@@ -1,12 +1,11 @@
 #pragma once
 #include "monotonic_stack.hpp"
 //! @code
-//!   auto mono_le2 = mono_st(a, less());
-//!   auto mono_ri2 = mono_range(mono_le2);
+//!   vi le = mono_st(a, less()), ri = mono_range(le);
 //!   // less_equal(), greater(), greater_equal()
 //! @endcode
 //! when cmp == less():
-//!   a[mono_le2[i]] < a[i] >= a[mono_ri2[i]]
+//!   a[le[i]] < a[i] >= a[ri[i]]
 //! @time O(n)
 //! @space O(n)
 vi mono_range(const vi& l) {
diff --git a/library/monotonic_stack/monotonic_stack.hpp b/library/monotonic_stack/monotonic_stack.hpp
index 27fc648c..cb78968a 100644
--- a/library/monotonic_stack/monotonic_stack.hpp
+++ b/library/monotonic_stack/monotonic_stack.hpp
@@ -1,10 +1,10 @@
 #pragma once
 //! @code
-//!   auto mono_le1 = mono_st(a, less());
+//!   vi le = mono_st(a, less());
 //!   // less_equal(), greater(), greater_equal()
 //! @endcode
 //! when cmp == less():
-//!   a[mono_le1[i]] < a[i]
+//!   a[le[i]] < a[i]
 //! @time O(n)
 //! @space O(n)
 template<class T, class F>
diff --git a/library/strings/suffix_array/compare/compare_substrings.hpp b/library/strings/suffix_array/compare/compare_substrings.hpp
index bec60361..76f82ffe 100644
--- a/library/strings/suffix_array/compare/compare_substrings.hpp
+++ b/library/strings/suffix_array/compare/compare_substrings.hpp
@@ -1,7 +1,9 @@
 #pragma once
 #include "compare_suffixes.hpp"
 //! @code
-//!   int cmp1 = saq.cmp_substrs(l1,r1,l2,r2);
+//!   auto [sa, sa_inv, lcp] = get_sa(s, 256);
+//!   sa_query saq(s, sa, sa_inv, lcp);
+//!   int cmp = saq.cmp_substrs(l1,r1,l2,r2);
 //! @endcode
 //! requires l1,l2 < n
 //! if cmp1<0 then s[l1,r1) < s[l2,r2)
diff --git a/library/strings/suffix_array/compare/compare_suffixes.hpp b/library/strings/suffix_array/compare/compare_suffixes.hpp
index 7925b191..8fcda411 100644
--- a/library/strings/suffix_array/compare/compare_suffixes.hpp
+++ b/library/strings/suffix_array/compare/compare_suffixes.hpp
@@ -1,6 +1,8 @@
 #pragma once
 //! @code
-//!   int cmp2 = saq.cmp_sufs(l1,l2);
+//!   auto [sa, sa_inv, lcp] = get_sa(s, 256);
+//!   sa_query saq(s, sa, sa_inv, lcp);
+//!   int cmp = saq.cmp_sufs(l1,l2);
 //! @endcode
 //! requires l1,l2 < n
 //! if cmp2<0 then s[l1,n) < s[l2,n)
diff --git a/library/strings/suffix_array/find/find_substring.hpp b/library/strings/suffix_array/find/find_substring.hpp
index cd5c7b0f..6ae1ca32 100644
--- a/library/strings/suffix_array/find/find_substring.hpp
+++ b/library/strings/suffix_array/find/find_substring.hpp
@@ -1,5 +1,7 @@
 #pragma once
 //! @code
+//!   auto [sa, sa_inv, lcp] = get_sa(s, 256);
+//!   sa_query saq(s, sa, sa_inv, lcp);
 //!   auto [sa_le,sa_ri] = saq.find_substr(s_l,s_r);
 //! @endcode
 //! requires s_l < n
diff --git a/library/strings/suffix_array/suffix_array_query.hpp b/library/strings/suffix_array/suffix_array_query.hpp
index 1c862e59..4e95130e 100644
--- a/library/strings/suffix_array/suffix_array_query.hpp
+++ b/library/strings/suffix_array/suffix_array_query.hpp
@@ -3,8 +3,9 @@
 #include "../../data_structures/rmq.hpp"
 #include "find/match.hpp"
 //! @code
-//!   auto [sa1, sa_inv1, lcp1] = get_sa(s, 256);
-//!   sa_query saq(s, sa1, sa_inv1, lcp1);
+//!                       //or sa_short
+//!   auto [sa, sa_inv, lcp] = get_sa(s, 256);
+//!   sa_query saq(s, sa, sa_inv, lcp);
 //! @endcode
 template<class T> struct sa_query {
   int n;
diff --git a/library/strings/suffix_array/suffix_array_short.hpp b/library/strings/suffix_array/suffix_array_short.hpp
index 67fb29c8..21e631a6 100644
--- a/library/strings/suffix_array/suffix_array_short.hpp
+++ b/library/strings/suffix_array/suffix_array_short.hpp
@@ -2,7 +2,7 @@
 //! https://github.com/atcoder/ac-library/blob/master/atcoder/string.hpp
 //! @code
 //!   // requires s[i]>=0
-//!   auto [sa2, sa_inv2, lcp2] = sa_short(s);
+//!   auto [sa, sa_inv, lcp] = sa_short(s);
 //! @endcode
 //! runs in ~1.5s for 5e5
 //! @time O(n * log^2(n))
diff --git a/library/trees/centroid_decomp.hpp b/library/trees/centroid_decomp.hpp
index b4985478..518ef68c 100644
--- a/library/trees/centroid_decomp.hpp
+++ b/library/trees/centroid_decomp.hpp
@@ -1,5 +1,6 @@
 #pragma once
 //! @code
+//!   vector<vi> adj(n);
 //!   centroid(adj, [&](const vector<vi>& adj,
 //!     int cent, int par_cent) {
 //!   });
diff --git a/library/trees/edge_cd.hpp b/library/trees/edge_cd.hpp
index 721a03ec..7f0ffae0 100644
--- a/library/trees/edge_cd.hpp
+++ b/library/trees/edge_cd.hpp
@@ -3,6 +3,7 @@
 //! https://codeforces.com/blog/entry/120446
 //! https://youtu.be/wDwaMo5xa-k
 //! @code
+//!   vector<vi> adj(n);
 //!   edge_cd(adj, [&](const vector<vi>& adj,
 //!     int cent, int split) {
 //!     // subtrees of prefix [0, split) of adj[cent]
diff --git a/library/trees/extra_members/compress_tree.hpp b/library/trees/extra_members/compress_tree.hpp
index 0ab7c3db..182e4c4d 100644
--- a/library/trees/extra_members/compress_tree.hpp
+++ b/library/trees/extra_members/compress_tree.hpp
@@ -1,6 +1,8 @@
 #include "../../monotonic_stack/monotonic_stack.hpp"
 //! https://github.com/kth-competitive-programming/kactl/blob/main/content/graph/CompressTree.h
 //! @code
+//!   vector<vi> adj(n);
+//!   LCA lca(adj);
 //!   auto [par, orig_node] =
 //!     lca.compress_tree(subset);
 //! @endcode
diff --git a/library/trees/lca_rmq/lca_rmq.hpp b/library/trees/lca_rmq/lca_rmq.hpp
index cc45d769..f579ea3b 100644
--- a/library/trees/lca_rmq/lca_rmq.hpp
+++ b/library/trees/lca_rmq/lca_rmq.hpp
@@ -2,6 +2,7 @@
 #include "../../data_structures/rmq.hpp"
 //! https://github.com/kth-competitive-programming/kactl/blob/main/content/graph/LCA.h
 //! @code
+//!   vector<vi> adj(n);
 //!   LCA lca(adj);
 //! @endcode
 //! @time O(nlogn + q)
diff --git a/library/trees/subtree_isomorphism.hpp b/library/trees/subtree_isomorphism.hpp
index 5b680219..7a99f00e 100644
--- a/library/trees/subtree_isomorphism.hpp
+++ b/library/trees/subtree_isomorphism.hpp
@@ -1,5 +1,6 @@
 #pragma once
 //! @code
+//!   vector<vi> adj(n);
 //!   auto [num_distinct_subtrees, iso_id] =
 //!     subtree_iso(adj);
 //! @endcode
diff --git a/tests/scripts/compile_commented_snippets.sh b/tests/scripts/compile_commented_snippets.sh
index d1c0db98..fbfea376 100755
--- a/tests/scripts/compile_commented_snippets.sh
+++ b/tests/scripts/compile_commented_snippets.sh
@@ -11,6 +11,8 @@ git submodule update
 {
 	echo "#include <bits/stdc++.h>"
 	echo "using namespace std;"
+	echo "#include <tr2/dynamic_bitset>"
+	echo "using namespace tr2;"
 	cat library_checker_aizu_tests/kactl_macros.hpp
 	echo "const ll mod = (119 << 23) + 1, root = 62;"
 	find ../library/ -type f -name "*.hpp" | grep --invert-match --file=.config/.code_snippet_excluded_file_list | sort | sed 's/^/#include "/; s/$/"/' | cpp -nostdinc -C -P | grep --invert-match --extended-regexp "const int mod = |const ll mod = "
@@ -26,12 +28,12 @@ git submodule update
 	echo "vector<vector<mint>> mat;"
 	echo "vector<vector<bool>> grid;"
 	echo "string s,t;"
-	echo "int n,m,k,tl,tr,l,r,l1,r1,l2,r2,s_l,s_r,root_l,root_r,source,sink,total_flow,bccid,u,v,rsz,cols,cap;"
+	echo "int n,m,k,tl,tr,l,r,l1,r1,l2,r2,s_l,s_r,root_l,root_r,source,sink,total_flow,bccid,u,v,lsz,rsz,cols,cap;"
 } >entire_library_without_main
 
 {
 	cat entire_library_without_main
-	sed --quiet '/\/\/! @code$/,/\/\/! @endcode$/{//!p;}' entire_library_without_main | sed 's/\/\/!//'
+	sed --quiet '/\/\/! @code$/,/\/\/! @endcode$/p' entire_library_without_main | sed 's/\/\/! @code/{/' | sed 's/\/\/! @endcode/}/' | sed 's/\/\/!//'
 	echo "return 0;"
 	echo "}"
 } >entire_library.cpp