From a2cd22570adc65b626d75cbbb9d97330eb34211c Mon Sep 17 00:00:00 2001
From: Luke Videckis <lrvideckis@gmail.com>
Date: Wed, 6 Aug 2025 19:25:08 -0600
Subject: [PATCH 1/2] trie golf

---
 library/strings/trie.hpp | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/library/strings/trie.hpp b/library/strings/trie.hpp
index f8ce264a..3cf12e3a 100644
--- a/library/strings/trie.hpp
+++ b/library/strings/trie.hpp
@@ -1,17 +1,13 @@
 #pragma once
 //! https://cp-algorithms.com/string/aho_corasick.html#construction-of-the-trie
-const int mn = 'A',
-          cnt_let = 26; // mn <= s[i] < mn + cnt_let
+const int mn = 'A';
 struct trie {
   struct node {
-    array<int, cnt_let> next;
-    int cnt_words = 0, par = -1;
-    char ch;
-    node(int par = -1, char ch = '#'): par(par), ch(ch) {
-      fill(all(next), -1);
-    }
+    array<int, 26> next;
+    bool end_of_word = 0;
+    node() { fill(all(next), -1); }
   };
-  vector<node> t;
+  deque<node> t;
   trie(): t(1) {}
   void insert(const string& s) {
     int v = 0;
@@ -19,11 +15,11 @@ struct trie {
       int u = ch - mn;
       if (t[v].next[u] == -1) {
         t[v].next[u] = sz(t);
-        t.emplace_back(v, ch);
+        t.emplace_back();
       }
       v = t[v].next[u];
     }
-    t[v].cnt_words++;
+    t[v].end_of_word = 1;
   }
   int find(const string& s) {
     int v = 0;
@@ -32,6 +28,6 @@ struct trie {
       if (t[v].next[u] == -1) return 0;
       v = t[v].next[u];
     }
-    return t[v].cnt_words;
+    return t[v].end_of_word;
   }
 };

From f61f162cfbf381ff1701080163169a25cd50b40d Mon Sep 17 00:00:00 2001
From: GitHub <noreply@github.com>
Date: Thu, 7 Aug 2025 01:26:17 +0000
Subject: [PATCH 2/2] [auto-verifier] verify commit
 a2cd22570adc65b626d75cbbb9d97330eb34211c

---
 .verify-helper/timestamps.remote.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.verify-helper/timestamps.remote.json b/.verify-helper/timestamps.remote.json
index b5621895..525611a3 100644
--- a/.verify-helper/timestamps.remote.json
+++ b/.verify-helper/timestamps.remote.json
@@ -124,7 +124,7 @@
 "tests/library_checker_aizu_tests/strings/single_matching_bs.test.cpp": "2025-08-05 19:19:23 -0600",
 "tests/library_checker_aizu_tests/strings/suffix_array.test.cpp": "2025-08-06 09:59:41 -0600",
 "tests/library_checker_aizu_tests/strings/suffix_array_short.test.cpp": "2025-08-05 19:19:23 -0600",
-"tests/library_checker_aizu_tests/strings/trie.test.cpp": "2024-12-05 10:41:42 -0600",
+"tests/library_checker_aizu_tests/strings/trie.test.cpp": "2025-08-06 19:25:08 -0600",
 "tests/library_checker_aizu_tests/strings/wildcard_pattern_matching.test.cpp": "2025-08-05 19:19:23 -0600",
 "tests/library_checker_aizu_tests/trees/count_paths_per_length.test.cpp": "2025-08-06 13:48:07 -0600",
 "tests/library_checker_aizu_tests/trees/edge_cd_contour_range_query.test.cpp": "2025-08-06 19:02:15 -0600",