Compilare: main.cpp: In function 'int ciurul()': main.cpp:14:17: warning: iteration 999999 invokes undefined behavior [-Waggressive-loop-optimizations] 14 | ciur[i] = 1; | ~~~~~~~~^~~ main.cpp:13:19: note: within this loop 13 | for( i = 2; i <= 1000001; ++i ) | ~~^~~~~~~~~~ main.cpp:14:17: warning: 'void* __builtin_memset(void*, int, long unsigned int)' forming offset 1000001 is out of the bounds [0, 1000001] of object 'ciur' with type 'bool [1000001]' [-Warray-bounds] 14 | ciur[i] = 1; | ~~~~~~~~^~~ main.cpp:8:6: note: 'ciur' declared here 8 | bool ciur[1000001]; | ^~~~ main.cpp: In function 'int magic(int, int)': main.cpp:38:12: warning: 'd' may be used uninitialized in this function [-Wmaybe-uninitialized] 38 | return d; | ^ main.cpp: In function 'int main()': main.cpp:56:18: warning: 'd' may be used uninitialized in this function [-Wmaybe-uninitialized] 56 | suma = suma + magic( nr , p ); | ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~