Compilare: main.cpp: In function 'void rst()': main.cpp:16:11: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'class std::bitset<501>'; use assignment or value-initialization instead [-Wclass-memaccess] 16 | memset(adj, false, sizeof adj); | ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:66, from main.cpp:1: /usr/include/c++/12.2.1/bitset:751:11: note: 'class std::bitset<501>' declared here 751 | class bitset | ^~~~~~