Compilare: main.c: In function 'main': main.c:18:34: warning: unused variable 'r2' [-Wunused-variable] 18 | long long t,z,n,e,d,x,y,v,r,i,r2; | ^~ main.c:18:22: warning: unused variable 'd' [-Wunused-variable] 18 | long long t,z,n,e,d,x,y,v,r,i,r2; | ^ main.c:18:16: warning: unused variable 'z' [-Wunused-variable] 18 | long long t,z,n,e,d,x,y,v,r,i,r2; | ^