Compilare: main.cpp: In function 'void reuniune(std::vector<int>&, std::vector<int>&)': main.cpp:126:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 126 | for (; i < a.size() && j < b.size();) | ~~^~~~~~~~~~ main.cpp:126:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 126 | for (; i < a.size() && j < b.size();) | ~~^~~~~~~~~~ main.cpp:133:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 133 | while (i < a.size()) | ~~^~~~~~~~~~ main.cpp:135:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 135 | while (j < b.size()) | ~~^~~~~~~~~~