Compilare: main.cpp: In function 'int simplu()': main.cpp:57:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | while (p < expresie.size()) { | ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int rotund()': main.cpp:77:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 77 | if (p >= expresie.size()) | ~~^~~~~~~~~~~~~~~~~~ main.cpp:91:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 91 | for (int i = 1; i < v.size(); i++) { | ~~^~~~~~~~~~ main.cpp: In function 'int patrat()': main.cpp:102:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 102 | if (p >= expresie.size()) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:124:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 124 | for (int i = 0; i < expresie.size(); i++) { | ~~^~~~~~~~~~~~~~~~~