Compilare: main.cpp: In function 'int main()': main.cpp:104:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 104 | for (i = 0; i< adiac[nod].size(); i++) | ~^~~~~~~~~~~~~~~~~~~ main.cpp:43:35: warning: unused variable 'nrmin' [-Wunused-variable] 43 | int i, j, x, y, lg, nod,nod2, nrmin; | ^~~~~