Compilare: main.cpp: In function 'int main()': main.cpp:12:13: warning: unused variable 'a' [-Wunused-variable] 12 | int n,m,a,b,i,o,j; | ^ main.cpp:12:15: warning: unused variable 'b' [-Wunused-variable] 12 | int n,m,a,b,i,o,j; | ^ main.cpp:12:17: warning: unused variable 'i' [-Wunused-variable] 12 | int n,m,a,b,i,o,j; | ^ main.cpp:12:19: warning: unused variable 'o' [-Wunused-variable] 12 | int n,m,a,b,i,o,j; | ^ main.cpp:12:21: warning: unused variable 'j' [-Wunused-variable] 12 | int n,m,a,b,i,o,j; | ^