diff --git a/src/8/30/P2016.cpp b/src/8/30/P2016.cpp
index 2294208..b2114b1 100644
--- a/src/8/30/P2016.cpp
+++ b/src/8/30/P2016.cpp
@@ -5,13 +5,11 @@
 */
 #include <algorithm>
 #include <cstdint>
-#include <cstdio>
 #include <iostream>
 #include <istream>
 #include <vector>
 using ll = int64_t;
 
-const ll inf = 1e9;
 ll n;
 std::vector<std::vector<ll>> edg,dp;