Compilare: main.cpp: In function 'int main()': main.cpp:23:17: warning: iteration 46340 invokes undefined behavior [-Waggressive-loop-optimizations] 23 | ciur[i] = true ; | ~~~~~~~~^~~~~~ main.cpp:22:27: note: within this loop 22 | for(int i = 0 ; i <= nr ; i++) { | ~~^~~~~ main.cpp:27:17: warning: iteration 23168 invokes undefined behavior [-Waggressive-loop-optimizations] 27 | ciur[i] = false ; | ~~~~~~~~^~~~~~~ main.cpp:26:23: note: within this loop 26 | for(int i = 4 ; i <= nr ; i += 2) { | ~~^~~~~ main.cpp:23:17: warning: 'void* __builtin_memset(void*, int, long unsigned int)' forming offset 46340 is out of the bounds [0, 46340] of object 'ciur' with type 'bool [46340]' [-Warray-bounds] 23 | ciur[i] = true ; | ~~~~~~~~^~~~~~ main.cpp:7:6: note: 'ciur' declared here 7 | bool ciur[nr] ; | ^~~~