Compilare: main.cpp: In function 'int main()': main.cpp:23:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[1].size();i++) ~^~~~~~~~~~~~ main.cpp:41:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[vfmin].size();i++) ~^~~~~~~~~~~~~~~~ main.cpp:42:69: warning: 'vfmin' may be used uninitialized in this function [-Wmaybe-uninitialized] if(!M[g[vfmin][i].y] && Cmin[g[vfmin][i].y]> Cmin[vfmin]+ g[vfmin][i].c) ~~~~~~~~~~^