Compilare: main.cpp: In function 'bool good(long long int)': main.cpp:60:11: warning: 'void* memset(void*, int, size_t)' clearing an object of non-trivial type 'struct NNod'; use assignment or value-initialization instead [-Wclass-memaccess] 60 | memset(a,0,sizeof(a)); | ~~~~~~^~~~~~~~~~~~~~~ main.cpp:22:8: note: 'struct NNod' declared here 22 | struct NNod{ | ^~~~