Compilare: main.cpp: In function 'int main()': main.cpp:37:20: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 37 | for (i=1; i<=n; ++i) | ~^~~ main.cpp:50:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for (int i=0; i<lista_vecini[nod].size(); ++i) | ~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:67:20: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 67 | for (i=2; i<=n; ++i) | ~^~~ main.cpp:85:20: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] 85 | for (i=1; i<=n; ++i) | ~^~~