Compilare: main.cpp: In function 'bool good(int)': main.cpp:63:11: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct NNod'; use assignment or value-initialization instead [-Wclass-memaccess] 63 | memset(a,0,sizeof(a)); | ~~~~~~^~~~~~~~~~~~~~~ main.cpp:23:8: note: 'struct NNod' declared here 23 | struct NNod | ^~~~