Compilare: main.cpp: In function 'int main()': main.cpp:13:15: warning: unused variable 'nr' [-Wunused-variable] int n,k,i,nr=1,semn=1,sf,inc; ^~ main.cpp:13:20: warning: unused variable 'semn' [-Wunused-variable] int n,k,i,nr=1,semn=1,sf,inc; ^~~~ main.cpp:15:10: warning: unused variable 'c' [-Wunused-variable] char c; ^ main.cpp:41:16: warning: 'inc' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<inc<<" "<<sf<<" "<<max1; ^~~ main.cpp:41:25: warning: 'sf' may be used uninitialized in this function [-Wmaybe-uninitialized] fout<<inc<<" "<<sf<<" "<<max1; ^~~