From 834e63f70afa6b6a72a259c68103ce9cb0ec80ee Mon Sep 17 00:00:00 2001
From: Ariel <ariel@arielherself.xyz>
Date: Mon, 15 Jan 2024 16:57:29 +0800
Subject: [PATCH] Update include.hh

---
 include.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include.hh b/include.hh
index 5b28163..0ba61a4 100644
--- a/include.hh
+++ b/include.hh
@@ -58,6 +58,6 @@ template<typename T, typename... U> void __read(T& x, U&... args) { cin >> x; __
 #define popback(q, ...) auto [__VA_ARGS__] = q.back(); q.pop_back();
 #define popfront(q, ...) auto [__VA_ARGS__] = q.front();q.pop_front();
 
-#define adj(ch, n) vector<vector<int>> ch(n);
+#define adj(ch, n) vector<vector<int>> ch((n) + 1);
 #define edge(ch, u, v) ch[u].push_back(v), ch[v].push_back(u);
 #define Edge(ch, u, v) ch[u].push_back(v);