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#!/usr/bin/env python
"""
Created on 26 Feb 2021
@author: David Doblas Jiménez
@email: daviddoji@pm.me
Solution for problem 032 of Project Euler
https://projecteuler.net/problem=32
"""
from project_euler_python.utils import timeit
@timeit("Problem 032")
def compute():
"""
We shall say that an n-digit number is pandigital if it makes use of all
the digits 1 to n exactly once; for example, the 5-digit number, 15234, is
1 through 5 pandigital.
The product 7254 is unusual, as the identity, 39 x 186 = 7254, containing
multiplicand, multiplier, and product is 1 through 9 pandigital.
Find the sum of all products whose multiplicand/multiplier/product identity
can be written as a 1 through 9 pandigital.
HINT: Some products can be obtained in more than one way so be sure to only
include it once in your sum.
"""
ans = set()
pandigital = ["1", "2", "3", "4", "5", "6", "7", "8", "9"]
for x in range(1, 100):
for y in range(100, 10_000):
# product = x * y
if sorted(str(x) + str(y) + str(x * y)) == pandigital:
ans.add(x * y)
return sum(ans)
if __name__ == "__main__":
print(f"Result for Problem 032: {compute()}")