Compilare: main.cpp: In function 'int BF()': main.cpp:30:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j = 0 ; j < v[node].size() ; j++){ ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int maxflow()': main.cpp:45:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i = 0 ; i < v[n].size() ; i++){ ~~^~~~~~~~~~~~~