Compilare: main.cpp: In function 'int main()': main.cpp:20:13: warning: iteration 1000005 invokes undefined behavior [-Waggressive-loop-optimizations] 20 | e[i]=i; | ~~~~^~ main.cpp:18:21: note: within this loop 18 | for (int i=2 ; i<=N ; i++) | ~^~~ main.cpp:25:16: warning: iteration 1000005 invokes undefined behavior [-Waggressive-loop-optimizations] 25 | if (e[i]==i) | ~~~^ main.cpp:23:21: note: within this loop 23 | for (int i=2 ; i<=N ; i++) | ~^~~