Compilare: main.cpp: In function 'int darb(int, const std::vector<std::vector<int> >&)': main.cpp:39:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 39 | for (int j = 1; j < dist.size(); ++j) | ~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:64:10: warning: unused variable 'res' [-Wunused-variable] 64 | auto res = darb(st, g); | ^~~