create dev channel

zeta/py/completed/14425_trie.py

@@ -0,0 +1,44 @@
+import sys
+
+input = sys.stdin.readline
+
+trie = [[0 for _ in range(26)] for _ in range(5050505)]
+fins = [0 for _ in range(5050505)]
+cnt = 1
+
+
+def convert(c: str) -> int:
+    return ord(c) - ord("a")
+
+
+# trie
+def insert(s: str):
+    global cnt
+    cur = 0
+    for c in s:
+        nxt = convert(c)
+        if not trie[cur][nxt]:
+            trie[cur][nxt] = cnt
+            cnt += 1
+        cur = trie[cur][nxt]
+    fins[cur] = 1
+
+
+def query(s):
+    cur = 0
+    for c in s:
+        nxt = convert(c)
+        if not trie[cur][nxt]:
+            if s == "sundaycoding":
+                print(c)
+            return 0
+        cur = trie[cur][nxt]
+    return fins[cur]
+
+
+if __name__ == "__main__":
+    N, M = map(int, input().split())
+    for _ in range(N):
+        insert(input().strip())
+
+    print(sum(query(input().strip()) for _ in range(M)))