Compilare: main.cpp: In function 'void bac(int)': main.cpp:26:13: warning: unused variable 't' [-Wunused-variable] long long t=1,q=1,i,j,x,x1,tt[50]; ^ main.cpp: In function 'int main()': main.cpp:118:17: warning: unused variable 'i' [-Wunused-variable] long long d,i; ^ main.cpp: In function 'void bac(int)': main.cpp:38:23: warning: iteration 8 invokes undefined behavior [-Waggressive-loop-optimizations] for(j=1;j<=f[i];j++) ~~~^ main.cpp:37:14: note: within this loop for(i=2;i<=20;i++) ~^~~~ main.cpp:28:10: warning: iteration 49 invokes undefined behavior [-Waggressive-loop-optimizations] tt[i]=0; ~~~~~^~ main.cpp:27:12: note: within this loop for(i=1;i<=50;i++) ~^~~~