Compilare: main.cpp: In member function 'uint32_t HashTable::add(uint32_t)': main.cpp:62:23: warning: comparison of integer expressions of different signedness: 'uint32_t' {aka 'unsigned int'} and 'int' [-Wsign-compare] 62 | while (it != -1 && key[it].num != x) | ~~~^~~~~ main.cpp:64:20: warning: comparison of integer expressions of different signedness: 'uint32_t' {aka 'unsigned int'} and 'int' [-Wsign-compare] 64 | if (it != -1) | ~~~^~~~~ main.cpp: In member function 'uint32_t HashTable::find_element(uint32_t)': main.cpp:82:23: warning: comparison of integer expressions of different signedness: 'uint32_t' {aka 'unsigned int'} and 'int' [-Wsign-compare] 82 | while (it != -1 && key[it].num != x) | ~~~^~~~~ main.cpp:84:24: warning: comparison of integer expressions of different signedness: 'uint32_t' {aka 'unsigned int'} and 'int' [-Wsign-compare] 84 | return (it != -1); | ~~~^~~~~ main.cpp: In member function 'uint32_t HashTable::erase_element(uint32_t)': main.cpp:103:27: warning: comparison of integer expressions of different signedness: 'uint32_t' {aka 'unsigned int'} and 'int' [-Wsign-compare] 103 | while (it != -1 && key[it].num != x) | ~~~^~~~~ main.cpp:108:24: warning: comparison of integer expressions of different signedness: 'uint32_t' {aka 'unsigned int'} and 'int' [-Wsign-compare] 108 | if (it != -1) | ~~~^~~~~