Compilare: main.cpp: In function 'std::vector<int> inter(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 < a.size() and j < b.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 < a.size() and j < b.size()) | ~~^~~~~~~~~~ main.cpp: In function 'std::vector<int> reun(std::vector<int>, std::vector<int>)': main.cpp:40:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | while (i < a.size() and j < b.size()) | ~~^~~~~~~~~~ main.cpp:40:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 40 | while (i < a.size() and j < b.size()) | ~~^~~~~~~~~~ main.cpp:55:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | while (i < a.size()) | ~~^~~~~~~~~~ main.cpp:57:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 57 | while (j < b.size()) | ~~^~~~~~~~~~ main.cpp: In function 'std::vector<int> scad(std::vector<int>, std::vector<int>)': main.cpp:67:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | while (i < a.size() and j < b.size()) | ~~^~~~~~~~~~ main.cpp:67:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | while (i < a.size() and j < b.size()) | ~~^~~~~~~~~~ main.cpp:81:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 81 | while (i < a.size()) | ~~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:141:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 141 | for (i = 0; i < ans.size() - 1; i++) | ~~^~~~~~~~~~~~~~~~