Can you solve the passcode riddle? - Ganesh Pai

source: TED-Ed      2016年7月7日
View full lesson: http://ed.ted.com/lessons/can-you-sol...
In a dystopian world, your resistance group is humanity’s last hope. Unfortunately, you’ve all been captured by the tyrannical rulers and brought to the ancient coliseum for their deadly entertainment. Will you be able to solve the passcode riddle and get everyone out safely? Ganesh Pai shows how.
Lesson by Ganesh Pai, animation by Jun Zee Myers.

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