Compilare: main.cpp: In function 'std::vector<int> reu(const std::vector<int>&, const std::vector<int>&)': main.cpp:60:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | while(i<x.size()&&j<y.size()) { | ~^~~~~~~~~ main.cpp:60:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | while(i<x.size()&&j<y.size()) { | ~^~~~~~~~~ main.cpp:70:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 70 | while(i<x.size()) { | ~^~~~~~~~~ main.cpp:73:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 73 | while(j<y.size()) { | ~^~~~~~~~~ main.cpp: In function 'std::vector<int> inter(const std::vector<int>&, const std::vector<int>&)': main.cpp:82:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | while(i<x.size()&&j<y.size()) { | ~^~~~~~~~~ main.cpp:82:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 82 | while(i<x.size()&&j<y.size()) { | ~^~~~~~~~~