Compilare: user.cpp: In function ‘void sortt(int)’: user.cpp:15:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<ad[x].size();i++) ^ user.cpp: In function ‘int main()’: user.cpp:52:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<ad[lista[i]].size();j++) if(maxpath[ad[lista[i]][j]]<maxpath[lista[i]]+1) maxpath[ad[lista[i]][j]]=maxpath[lista[i]]+1; ^