Compilare: main.cpp: In function 'int bfs()': main.cpp:33:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[nod].size();j++) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:58:13: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(flow>cost[nod][vecin]) ^~ main.cpp:60:17: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' vecin=nod; ^~~~~