Compilare: main.cpp: In function 'int main()': main.cpp:43:8: warning: unused variable 'm' [-Wunused-variable] 43 | ll n,m,i,j,k,l,rez=-1,st,dr,x,pref=0; | ^ main.cpp:43:12: warning: unused variable 'j' [-Wunused-variable] 43 | ll n,m,i,j,k,l,rez=-1,st,dr,x,pref=0; | ^ main.cpp:43:14: warning: unused variable 'k' [-Wunused-variable] 43 | ll n,m,i,j,k,l,rez=-1,st,dr,x,pref=0; | ^ main.cpp:43:16: warning: unused variable 'l' [-Wunused-variable] 43 | ll n,m,i,j,k,l,rez=-1,st,dr,x,pref=0; | ^ In file included from /usr/include/c++/12.2.1/iostream:39, 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:55:30: /usr/include/c++/12.2.1/ostream:202:25: warning: 'dr' may be used uninitialized [-Wmaybe-uninitialized] 202 | { return _M_insert(__n); } | ~~~~~~~~~^~~~~ main.cpp: In function 'int main()': main.cpp:43:28: note: 'dr' was declared here 43 | ll n,m,i,j,k,l,rez=-1,st,dr,x,pref=0; | ^~ main.cpp:55:22: warning: 'st' may be used uninitialized [-Wmaybe-uninitialized] 55 | fout<<rez<<' '<<st+1<<' '<<dr; | ^ main.cpp:43:25: note: 'st' was declared here 43 | ll n,m,i,j,k,l,rez=-1,st,dr,x,pref=0; | ^~