Compilare: main.cpp: In function 'std::vector<int> Reuniune(std::vector<int>, std::vector<int>)': main.cpp:17:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | while (i < x.size() and j < y.size()) | ~~^~~~~~~~~~ main.cpp:17:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | while (i < x.size() and j < y.size()) | ~~^~~~~~~~~~ main.cpp:36:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 36 | while (i < x.size()) | ~~^~~~~~~~~~ main.cpp:42:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | while (j < y.size()) | ~~^~~~~~~~~~ main.cpp: In function 'std::vector<int> Intersectie(std::vector<int>, std::vector<int>)': main.cpp:56:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | while (i < x.size() and j < y.size()) | ~~^~~~~~~~~~ main.cpp:56:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | while (i < x.size() and j < y.size()) | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:145:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 145 | for (i = 0; i < sol.size(); i++) | ~~^~~~~~~~~~~~