Compilare: main.cpp: In function 'int main()': main.cpp:10:9: warning: unused variable 'n' [-Wunused-variable] int n,i,j,k=0; ^ main.cpp:20:17: warning: iteration 9999 invokes undefined behavior [-Waggressive-loop-optimizations] nrdiv[i]=1; ~~~~~~~~^~ main.cpp:19:14: note: within this loop for(i=1;i<=10000;i++) ~^~~~~~~ main.cpp:17:15: warning: iteration 31682 invokes undefined behavior [-Waggressive-loop-optimizations] if(w[i]==0) ~~~^ main.cpp:16:14: note: within this loop for(i=2;i<=31684;i++) ~^~~~~~~