Compilare: main.cpp: In function 'int cmp(const Radu&, const Radu&)': main.cpp:28:9: warning: unused variable 'c1' [-Wunused-variable] 28 | int c1 = cadran(a.x, a.y); | ^~ main.cpp:29:9: warning: unused variable 'c2' [-Wunused-variable] 29 | int c2 = cadran(b.x, b.y); | ^~ main.cpp: In function 'int main()': main.cpp:61:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Radu>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 61 | for( int i = 1; i < v.size(); i++ ){ | ~~^~~~~~~~~~ main.cpp:53:21: warning: 'ind' may be used uninitialized [-Wmaybe-uninitialized] 53 | swap(v[0], v[ind]); | ^ main.cpp:42:9: note: 'ind' was declared here 42 | int ind; | ^~~