Compilare: main.cpp: In function 'int dfs(int, int)': main.cpp:65:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<fii[nod].size(); j++) ~^~~~~~~~~~~~~~~~ main.cpp:75:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'void afisare()': main.cpp:78:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<euler.size(); i++) ~^~~~~~~~~~~~~