Compilare: main.cpp: In function 'void solve()': main.cpp:91:11: warning: 'void* memset(void*, int, size_t)' clearing an object of type 'struct std::pair<int, int>' with no trivial copy-assignment; use assignment or value-initialization instead [-Wclass-memaccess] 91 | memset(amn,0,sizeof(amn)); | ~~~~~~^~~~~~~~~~~~~~~~~~~ In file included from /usr/include/c++/12.2.1/bits/stl_algobase.h:64, from /usr/include/c++/12.2.1/string:50, from /usr/include/c++/12.2.1/bits/locale_classes.h:40, from /usr/include/c++/12.2.1/bits/ios_base.h:41, from /usr/include/c++/12.2.1/ios:42, from /usr/include/c++/12.2.1/istream:38, from /usr/include/c++/12.2.1/fstream:38, from main.cpp:1: /usr/include/c++/12.2.1/bits/stl_pair.h:185:12: note: 'struct std::pair<int, int>' declared here 185 | struct pair | ^~~~