Compilare: main.cpp: In function 'int bellman_ford(int, int)': main.cpp:38:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<muchie>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 38 | for(int i=0;i<v[varf].size();i++) | ~^~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:93:11: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] 93 | fout<<sol; | ^~~