第12课。

离散数学.tex

@@ -18,6 +18,7 @@
 \usepackage{subfig}
 \usetikzlibrary{calc}
 \usetikzlibrary{arrows.meta}
+\usetikzlibrary{patterns}
 
 \geometry{a4paper,scale=0.8}
 
@@ -55,7 +56,7 @@
 \author{}
 \date{}
 % linespread{1.5}
-% \includeonly{12EulersFormula.tex}
+% \includeonly{13ColoringMapsAndGraphs.tex}
 
 \begin{document}
     \maketitle
@@ -78,4 +79,5 @@
     \include{10MatchingsInGraphs.tex}
     \include{11CombinatoricsInGeometry.tex}
     \include{12EulersFormula.tex}
+    \include{13ColoringMapsAndGraphs.tex}
 \end{document}