Compilare: user.cpp: In function ‘int main()’: user.cpp:13:77: warning: iteration 4000u invokes undefined behavior [-Waggressive-loop-optimizations] for(j=1;j<=8000;j++) {s[j]=0;ss[j]=0;valmin[j]=inf;valmax[j]=0;a[j]=0;} ^ user.cpp:13:8: note: containing loop for(j=1;j<=8000;j++) {s[j]=0;ss[j]=0;valmin[j]=inf;valmax[j]=0;a[j]=0;} ^