Compilare: main.cpp: In member function 'BigInt BigInt::operator+(BigInt&)': main.cpp:35:17: warning: comparison of integer expressions of different signedness: 'int' and 'const long unsigned int' [-Wsign-compare] 35 | while(i < max(digits.size(), other.digits.size()) || carry) | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:38:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | if(i < digits.size()) | ~~^~~~~~~~~~~~~~~ main.cpp:40:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | if(i < other.digits.size()) | ~~^~~~~~~~~~~~~~~~~~~~~