Compilare: main.cpp: In function 'bool check(long long int)': main.cpp:41:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | for(int j=0;j<rep[i].size();j++){ | ~^~~~~~~~~~~~~~ main.cpp:51:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for(int i=0;i<rep[l].size();i++){ | ~^~~~~~~~~~~~~~ In file included from /usr/include/c++/12.2.1/istream:39, from /usr/include/c++/12.2.1/sstream:38, from /usr/include/c++/12.2.1/complex:45, from /usr/include/c++/12.2.1/ccomplex:39, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:54, from main.cpp:1: In member function 'std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(long long int) [with _CharT = char; _Traits = std::char_traits<char>]', inlined from 'int solve2()' at main.cpp:77:18: /usr/include/c++/12.2.1/ostream:202:25: warning: 'mls' may be used uninitialized [-Wmaybe-uninitialized] 202 | { return _M_insert(__n); } | ~~~~~~~~~^~~~~ main.cpp: In function 'int solve2()': main.cpp:62:32: note: 'mls' was declared here 62 | long long cly=1,ax,mdr,mls; | ^~~