Compilare: main.cpp: In function 'int main()': main.cpp:7:31: warning: unused variable 'contor' [-Wunused-variable] 7 | long long int N,S=0,i,j=1,contor=0,Smax=0,finish,start; | ^~~~~~ In file included from /usr/include/c++/12.2.1/istream:39, from /usr/include/c++/12.2.1/fstream:38, 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 main()' at main.cpp:34:22: /usr/include/c++/12.2.1/ostream:202:25: warning: 'start' may be used uninitialized [-Wmaybe-uninitialized] 202 | { return _M_insert(__n); } | ~~~~~~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:7:54: note: 'start' was declared here 7 | long long int N,S=0,i,j=1,contor=0,Smax=0,finish,start; | ^~~~~ 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 main()' at main.cpp:34:34: /usr/include/c++/12.2.1/ostream:202:25: warning: 'finish' may be used uninitialized [-Wmaybe-uninitialized] 202 | { return _M_insert(__n); } | ~~~~~~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:7:47: note: 'finish' was declared here 7 | long long int N,S=0,i,j=1,contor=0,Smax=0,finish,start; | ^~~~~~