Compilare: user.cpp: In function ‘void dfs(int)’: user.cpp:13:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<a[x].size();i++) ^ user.cpp: In function ‘void dfst(int)’: user.cpp:23:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<at[x].size();i++) ^ user.cpp: In function ‘int verif()’: user.cpp:31:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<d[nod].size()&&ok==1;i++) ^ user.cpp: In function ‘void rezolva()’: user.cpp:61:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(d[i].size()>valmax) ^ user.cpp: In function ‘void afisare()’: user.cpp:71:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<d[nod].size();i++) ^