Compilare: user.cpp: In function ‘int main()’: user.cpp:28:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<muc[nod].size();i++) ~^~~~~~~~~~~~~~~~ user.cpp:43:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0;i<muc[nod].size();i++) ~^~~~~~~~~~~~~~~~ user.cpp:58:30: warning: suggest parentheses around ‘&&’ within ‘||’ [-Wparentheses] if (vsp[i]+vfp[i]==vsp[fp] && fr[vsp[i]]==1 || i==sp || i==fp) g<<i<<" "; ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~