Top Tweets for #besttheorem

2 days ago

Problem 11: THE LOCKSMITH'S CIRCLE. A two-button keypad opens when the last n presses match the code. A shortest cyclic sequence of 2^n presses tries every code once. How many exist, up to rotation? Solution 9 is live. #QEDEventually #deBruijn #BESTTheorem #Combinatorics

Jace_blog's tweet photo. Problem 11: THE LOCKSMITH'S CIRCLE.

A two-button keypad opens when the last n presses match the code.

A shortest cyclic sequence of 2^n presses tries every code once.

How many exist, up to rotation?

Solution 9 is live.

#QEDEventually #deBruijn #BESTTheorem #Combinatorics https://t.co/uTK9NU27EM

Jace @Jace_blog

3 days ago

Problem 10: THE WARDEN'S LOCKERS. 2n prisoners, 2n lockers, n openings each. Open the locker with your own number, then follow the numbers you find. What is the chance all succeed, and its limit as n grows? Solution 8 is live. #QEDEventually #Probability #Permutations

Jace_blog's tweet photo. Problem 10: THE WARDEN'S LOCKERS.

2n prisoners, 2n lockers, n openings each.

Open the locker with your own number, then follow the numbers you find.

What is the chance all succeed, and its limit as n grows?

Solution 8 is live.

#QEDEventually #Probability #Permutations https://t.co/fEn5zXdhc8

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