Compilare: main.cpp: In function 'void apm()': main.cpp:60:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<edges.size();i++) ~^~~~~~~~~~~~~ main.cpp: In function 'void solve()': main.cpp:78:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<aux.size();i++) ~^~~~~~~~~~~