Compilare: main.cpp: In function 'int main()': main.cpp:45:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for (i = 0;i < nod[no].size();++i) | ~~^~~~~~~~~~~~~~~~ main.cpp:26:18: warning: unused variable 'j' [-Wunused-variable] 26 | int m, n, i, j, x, y, c, no, dist, cost, vecin; | ^