Compilare: main.cpp: In function 'std::vector<int> intersect(const std::vector<int>&, const std::vector<int>&)': main.cpp:31:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | while (i < setA.size() && j < setB.size()) { | ~~^~~~~~~~~~~~~ main.cpp:31:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 31 | while (i < setA.size() && j < setB.size()) { | ~~^~~~~~~~~~~~~ main.cpp: In function 'std::vector<int> addition(const std::vector<int>&, const std::vector<int>&)': main.cpp:49:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | while (i < setA.size() && j < setB.size()) { | ~~^~~~~~~~~~~~~ main.cpp:49:33: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | while (i < setA.size() && j < setB.size()) { | ~~^~~~~~~~~~~~~ main.cpp:62:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 62 | while (i < setA.size()) { | ~~^~~~~~~~~~~~~ main.cpp:66:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 66 | while (j < setB.size()) { | ~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:124:27: 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 = 2; i < rd.size(); i++) { | ~~^~~~~~~~~~~