Compilare: main.cpp: In function 'void apm()': main.cpp:51:22: warning: comparison of integer expressions of different signedness: 'std::vector<muchie>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 51 | if(sol.size()==n-1) return; | ~~~~~~~~~~^~~~~ main.cpp: In function 'void afisare()': main.cpp:64:14: warning: variable 'edge' set but not used [-Wunused-but-set-variable] 64 | for(auto edge:sol) | ^~~~