new file: archive/24-25-1-离散数学-期末-题图3.5.tex

Author: cppHusky

archive/24-25-1-离散数学-期末-题图3.5.tex

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+\documentclass{standalone}
+\usepackage{preset}
+\begin{document}
+\begin{tikzpicture}
+	\tikzset{background rectangle/.style={fill=white},show background rectangle,x=15mm,y=15mm}
+	\tikzset{every node/.style={fill=black,circle,minimum width=4,inner sep=0pt}}
+	\node(1)at(0,1){};
+	\node(2)at(0,0){};
+	\node(3)at(1,0){};
+	\node(4)at(1,1){};
+	\tikzset{every node/.style={draw=none}}
+	\node[left]at(1){\(v_1\)};
+	\node[left]at(2){\(v_2\)};
+	\node[right]at(3){\(v_3\)};
+	\node[right]at(4){\(v_4\)};
+	\tikzset{every path/.style={->,-Latex}}
+	\draw(1)to[out=-120,in=120](2);
+	\draw(1)to[out=-60,in=60](2);
+	\draw(1)to(3);
+	\draw(2)to(3);
+	\draw(3)to[out=120,in=-120](4);
+	\draw(4)to[out=-60,in=60](3);
+	\draw(1)to[out=60,in=120,distance=20](1);
+\end{tikzpicture}
+\end{document}