Compilare: main.cpp: In function 'void read()': main.cpp:21:13: warning: unused variable 'x' [-Wunused-variable] int x; ^ main.cpp:22:13: warning: unused variable 'primu' [-Wunused-variable] int primu = 0; ^~~~~ main.cpp:23:13: warning: unused variable 'ultimu' [-Wunused-variable] int ultimu = 0; ^~~~~~ main.cpp:24:13: warning: unused variable 'contor' [-Wunused-variable] int contor = 0; ^~~~~~ main.cpp:44:21: warning: variable 'Lu' set but not used [-Wunused-but-set-variable] int Lz=0, Lu=0; ^~ main.cpp:15:9: warning: unused variable 'afisare' [-Wunused-variable] int afisare = 0; ^~~~~~~ main.cpp:52:27: warning: iteration 21 invokes undefined behavior [-Waggressive-loop-optimizations] if (a[i]+a[i+1]==0){ ~~~~~^ main.cpp:51:26: note: within this loop for (int i=1; i<=22;i++){ ~^~~~