Compilare: main.cpp: In function 'int main()': main.cpp:41:9: warning: unused variable 'st' [-Wunused-variable] 41 | int st, dr, mij, b; | ^~ main.cpp:41:13: warning: unused variable 'dr' [-Wunused-variable] 41 | int st, dr, mij, b; | ^~ main.cpp:41:17: warning: unused variable 'mij' [-Wunused-variable] 41 | int st, dr, mij, b; | ^~~ main.cpp:41:22: warning: unused variable 'b' [-Wunused-variable] 41 | int st, dr, mij, b; | ^