L14_A
Pigeonhole Principle
L14_B
Example_1997
Example_Triangle with 5 points
Example_Some vertexes with 2 color lines
Array ( [0] => Array ( [title] => L14A [link] => https://www.youtube.com/embed/aamfEmUgs9E ) [1] => Array ( [title] => L14B [link] => https://www.youtube.com/embed/JWwSsVozdW4 ) )
Title
第1節
第2節
Syllabus
L14_A
Pigeonhole Principle
L14_B
Example_1997
Example_Triangle with 5 points
Example_Some vertexes with 2 color lines