Compilare: main.cpp: In function 'int main()': main.cpp:23:9: warning: variable 'posi' set but not used [-Wunused-but-set-variable] int posi, posj; ^~~~ main.cpp:23:15: warning: variable 'posj' set but not used [-Wunused-but-set-variable] int posi, posj; ^~~~