713.tex

\documentclass{standalone}
\usepackage{tikz}
\usetikzlibrary{positioning, fit, shapes, arrows}



\pgfdeclarelayer{bg}    % declare background layer
\pgfsetlayers{bg,main}  % set the order of the layers (main is the standard layer)

\input{hedge.tex}

\begin{document}
\begin{tikzpicture}[every node/.style={draw, circle, inner sep=1pt}, grow=up]
\node(0) {0}
   child{node(1){1}}
   child{node(2){2}
       child{node(3){3}
       child{node(4){4}}
       }}
   child{node(5){5}};
% \begin{pgfonlayer}{bg}    % select the background layer
\hedge[red]{0,2,1}{0.2cm}
\hedge[blue]{0,2,3,1}{0.3cm}
\hedge[green]{0,5,4,1}{0.4cm}
%\end{pgfonlayer}
\end{tikzpicture}
\end{document}