Compilare: In member function 'void seq::operator+=(const seq&)', inlined from 'void query(int64_t, int64_t, int64_t, const int64_t&, const int64_t&, seq&)' at main.cpp:66:12: main.cpp:46:13: warning: 'void free(void*)' called on pointer returned from a mismatched allocation function [-Wmismatched-new-delete] 46 | free(_this); | ~~~~^~~~~~~ main.cpp:34:23: note: returned from 'void* operator new(std::size_t)' 34 | seq*_this=new seq; | ^~~