Puzzle Nekst 1 2021-2022

Last year Microsoft organised a hackathon. The attendees made puzzles to test AI’s programming proficiency. Each puzzle takes the form of a Python function that takes an answer as an argument. The answer is an input which makes the function return True. This is called satisfying the puzzle, and that is why the puzzles are all named sat. Can you figure out a required input for the functions?

Example excersise

def sat(x: str):
   return 'Hello ' + x[::-1] == 'Hello world'

Solution

def reverse(s):
   return s[::-1]

sat(reverse("world"))

Puzzle 1

def sat(x):
   try:
       x(123)
       return False
   except RandomException:
       return True
   except:
       return False

Puzzle 2

def sat(one, two, three):
   return one(two) == three 
   and one(two(three)) == two 
   and two != three

Puzzle 3

def sat(x):
   return x > x and x + 1 == x

Solution

Puzzle 1

class RandomException(Exception):
   pass

def foo(string):
   raise RandomException

sat(foo)

Puzzle 2

def how(x):
   return 1 if x is dee else dee

def dee(x):
   return x

sat(how, dee, 1)

Puzzle 3

class Var:
   def __gt__(self, other):
       return True
   def __add__(self, other):
       return 1
   def __eq__(self, other):
       return True
bob = Var()
sat(bob)