fixes

Author: lrvideckis

library/contest/random.hpp

@@ -5,7 +5,7 @@
 //!   uint64_t x1 = rng();
 //!   mt19937 rng; // fixed seed for debugging
 //!   int x2 = rnd(0, 1); //random number in [0,1]
-//!   ll x3 = rnd<ll>(1, 1e18);
+//!   ll x3 = rnd(ll(1), ll(1e18));
 //! @endcode
 mt19937 rng(
   chrono::steady_clock::now().time_since_epoch().count());

library/graphs/bridges_cuts/block_vertex_tree.hpp

@@ -3,12 +3,14 @@
 //! @code
 //!   {
 //!     vector<vector<pii>> adj(n);
-//!     cuts cc(adj, m);
-//!     vector<vi> bvt = block_vertex_tree(adj, cc);
+//!     auto [num_bccs, bcc_id, is_cut] = cuts(adj, m);
+//!     vector<vi> bvt = block_vertex_tree(adj,
+//!       num_bccs, bcc_id);
 //!   }
 //!   vector<basic_string<array<int, 2>>> adj(n);
-//!   cuts cc(adj, m);
-//!   vector<vi> bvt = block_vertex_tree(adj, cc);
+//!   auto [num_bccs, bcc_id, is_cut] = cuts(adj, m);
+//!   vector<vi> bvt = block_vertex_tree(adj,
+//!     num_bccs, bcc_id);
 //!
 //!   //to loop over each unique bcc containing a node u:
 //!   for (int bccid : bvt[v]) {

library/graphs/bridges_cuts/bridge_tree.hpp

@@ -3,12 +3,14 @@
 //! @code
 //!   {
 //!     vector<vector<pii>> adj(n);
-//!     bridges br(adj, m);
-//!     vector<vi> bt = bridge_tree(adj, br);
+//!     auto [num_ccs, br_id, is_br] = bridges(adj, m);
+//!     vector<vi> bt = bridge_tree(adj,
+//!       num_ccs, br_id, is_br);
 //!   }
 //!   vector<basic_string<array<int, 2>>> adj(n);
-//!   bridges br(adj, m);
-//!   vector<vi> bt = bridge_tree(adj, br);
+//!   auto [num_ccs, br_id, is_br] = bridges(adj, m);
+//!   vector<vi> bt = bridge_tree(adj,
+//!     num_ccs, br_id, is_br);
 //! @endcode
 //! @time O(n + m)
 //! @space O(n)

library/trees/subtree_isomorphism.hpp

@@ -6,7 +6,8 @@
 //!       subtree_iso(adj);
 //!   }
 //!   vector<basic_string<int>> adj(n);
-//!   subtree_iso iso(adj);
+//!   auto [num_distinct_subtrees, iso_id] =
+//!     subtree_iso(adj);
 //! @endcode
 //! - 0 <= iso_id[v] < num_distinct_subtrees
 //! - iso_id[u] == iso_id[v] iff subtree u is