Compilare: main.cpp: In function 'int bellmanford()': main.cpp:31:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0;i<v[p].size();i++){ ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:81:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<muchii.size();i++){ ~^~~~~~~~~~~~~~ main.cpp:88:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<SOL.size();i++) ~^~~~~~~~~~~