Compilare: main.cpp: In function 'bool findHash(int)': main.cpp:30:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | while ( i < hash_numere[code].size() && hash_numere[code][i] != val ) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:32:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 32 | return i < hash_numere[code].size(); | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~