Compilare: main.cpp: In function 'std::vector<int> reuniune(std::vector<int>, std::vector<int>)': main.cpp:29:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | while(i < a.size() && j < b.size()){ | ~~^~~~~~~~~~ main.cpp:29:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | while(i < a.size() && j < b.size()){ | ~~^~~~~~~~~~ main.cpp:44:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 44 | while(i < a.size()){ | ~~^~~~~~~~~~ main.cpp:48:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 48 | while(j < b.size()){ | ~~^~~~~~~~~~ main.cpp: In function 'std::vector<int> intersectie(std::vector<int>, std::vector<int>)': main.cpp:58:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | while(i < a.size() && j < b.size()){ | ~~^~~~~~~~~~ main.cpp:58:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | while(i < a.size() && j < b.size()){ | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:121:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 121 | while(j < s.size() && isdigit(s[j])){ | ~~^~~~~~~~~~