Compilare: main.cpp: In function 'void solve()': main.cpp:101:11: warning: 'void* memset(void*, int, size_t)' writing to an object of type 'class std::vector<int>' with no trivial copy-assignment [-Wclass-memaccess] 101 | memset(tree,{0},sizeof(tree)); | ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~ In file included from /usr/include/c++/12.2.1/vector:64, from /usr/include/c++/12.2.1/functional:62, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:71, from main.cpp:1: /usr/include/c++/12.2.1/bits/stl_vector.h:423:11: note: 'class std::vector<int>' declared here 423 | class vector : protected _Vector_base<_Tp, _Alloc> | ^~~~~~