Compilare: main.cpp: In function 'std::vector<int> reu(const std::vector<int>&, const std::vector<int>&)': main.cpp:61:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | while(i<x.size()&&j<y.size()) { | ~^~~~~~~~~ main.cpp:61:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | while(i<x.size()&&j<y.size()) { | ~^~~~~~~~~ main.cpp:71:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | while(i<x.size()) { | ~^~~~~~~~~ main.cpp:74:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 74 | while(j<y.size()) { | ~^~~~~~~~~ main.cpp: In function 'std::vector<int> inter(const std::vector<int>&, const std::vector<int>&)': main.cpp:83:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | while(i<x.size()&&j<y.size()) { | ~^~~~~~~~~ main.cpp:83:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | while(i<x.size()&&j<y.size()) { | ~^~~~~~~~~