Compilare: main.cpp: In function 'int main()': main.cpp:34:25: warning: iteration 5 invokes undefined behavior [-Waggressive-loop-optimizations] nr_alese[i] = *ptr; ~~~~~~~~~~~~^~~~~~ main.cpp:32:23: note: within this loop for (i = 1; i <= 6; i++) ~~^~~~ main.cpp:50:35: warning: iteration 5 invokes undefined behavior [-Waggressive-loop-optimizations] out << nr_alese[i] << " "; ^~~ main.cpp:48:23: note: within this loop for (i = 1; i <= 6; i++) ~~^~~~