Compilare: main.cpp: In function 'int main()': main.cpp:16:24: warning: iteration 4 invokes undefined behavior [-Waggressive-loop-optimizations] 16 | if ( divizori[i] == 0 ) | ~~~~~~~~~~^ main.cpp:15:20: note: within this loop 15 | for ( i = 2; i <= nmax; ++i ) | ~~^~~~~~~ main.cpp:21:24: warning: iteration 4 invokes undefined behavior [-Waggressive-loop-optimizations] 21 | if ( divizori[i] == 1 ) | ~~~~~~~~~~^ main.cpp:19:20: note: within this loop 19 | for ( i = 2; i <= nmax; ++i ) | ~~^~~~~~~