Compilare: main.cpp: In function 'void solve()': main.cpp:10:16: warning: iteration 1000000 invokes undefined behavior [-Waggressive-loop-optimizations] 10 | prim[i]=i; | ~~~~~~~^~ main.cpp:9:20: note: within this loop 9 | for (int i=1; i<=n; ++i){ | ~^~~ main.cpp:13:19: warning: iteration 999999 invokes undefined behavior [-Waggressive-loop-optimizations] 13 | if (prim[i]==i) { | ~~~~~~^ main.cpp:12:20: note: within this loop 12 | for (int i=2; i<=n; ++i){ | ~^~~