Compilare: user.cpp: In function ‘int main()’: user.cpp:16:37: warning: unused variable ‘k’ [-Wunused-variable] int n , max = -1 , start = -1 , k , stop ; ^ user.cpp:30:29: warning: ‘stop’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout << start << " " << stop << " " ; ^