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60 lines
1.2 KiB
TeX
60 lines
1.2 KiB
TeX
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\documentclass{article}
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\usepackage[pdftex,active,tightpage]{preview}
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\setlength\PreviewBorder{2mm}
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\usepackage{tikz}
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\usetikzlibrary{arrows,positioning, calc}
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\tikzstyle{vertex}=[draw,fill=black!15,circle,minimum size=18pt,inner sep=0pt]
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\begin{document}
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\begin{preview}
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\begin{tikzpicture}[very thick,level/.style={sibling distance=70mm/#1}]
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\node [vertex] (r){$17$}
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child {
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node [vertex] (a) {$9$}
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child {
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node [vertex] {$3$}
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child {
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node [vertex] {$-3$}
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child {node [vertex] {$-4$}}
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child {
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node [vertex] {$2$}
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child {
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node [vertex] {$2$}
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}
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}
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}
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child {
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node [vertex] {$8$}
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child {
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node [vertex] {$6$}
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child {
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node [vertex] {$5$}
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}
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child {
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node [vertex] {$7$}
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}
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}
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}
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}
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child {
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node [vertex] {$11$}
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child {
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node [vertex] {$17$}
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child {
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node [vertex] {$17$}
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}
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}
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}
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}
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child {
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node [vertex] {$19$}
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child {
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node [vertex] {$20$}
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}
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};
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\end{tikzpicture}
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\end{preview}
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\end{document}
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