Compilare: main.cpp: In function 'int BFS(int, int)': main.cpp:30:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<vec[x].size(); j++) ~^~~~~~~~~~~~~~ main.cpp: In function 'int Get_Flux(int, int)': main.cpp:54:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<vec[destinatie].size(); j++) ~^~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:106:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int z=0; z<vec[j].size(); z++) ~^~~~~~~~~~~~~~