Compilare: main.cpp: In member function 'int skip_list::generateLevel()': main.cpp:168:34: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] 168 | while (lvl < maxh && val & 1 == 1) { | ~~^~~~ main.cpp: In member function 'void skip_list::erase(int)': main.cpp:160:12: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized] 160 | delete ans; | ^~~ In constructor 'node::node(int, int)', inlined from 'skip_list::skip_list(int)' at main.cpp:58:33, inlined from 'int main()' at main.cpp:194:15: main.cpp:22:22: warning: 'void* __builtin_memset(void*, int, long unsigned int)' forming offset [136, 143] is out of the bounds [0, 136] [-Warray-bounds] 22 | above[i] = nullptr; | ~~~~~~~~~^~~~~~~~~