Compilare: main.cpp: In function 'void determineAnswer(int, int)': main.cpp:35:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 35 | while(poz < s.size()) | ~~~~^~~~~~~~~~ main.cpp:38:53: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | while(s[poz] >= '0' && s[poz] <= '9' && poz < s.size()) | ~~~~^~~~~~~~~~ main.cpp:46:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 46 | if(s[poz]!='+' && poz < s.size()) | ~~~~^~~~~~~~~~ main.cpp:51:57: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | while(s[poz] >= '0' && s[poz] <= '9' && poz < s.size()) | ~~~~^~~~~~~~~~