Compilare: main.cpp: In member function 'void longInt::operator+=(const longInt&)': main.cpp:17:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | while(cnt < digits.size() && cnt < oth.digits.size()) { | ~~~~^~~~~~~~~~~~~~~ main.cpp:17:42: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | while(cnt < digits.size() && cnt < oth.digits.size()) { | ~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:23:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 23 | while(cnt < digits.size() && rest) { | ~~~~^~~~~~~~~~~~~~~ main.cpp:29:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | while(cnt < oth.digits.size()) { | ~~~~^~~~~~~~~~~~~~~~~~~ main.cpp:30:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | if(cnt == digits.size()) | ~~~~^~~~~~~~~~~~~~~~ main.cpp:38:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | if(cnt == digits.size()) | ~~~~^~~~~~~~~~~~~~~~