Adopted new convention from template
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@ -1,4 +1,4 @@
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#!/usr/bin/env python3
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#!/usr/bin/env python
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"""
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Created on 24 Sep 2021
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@ -9,7 +9,7 @@ Solution for problem 51 of Project Euler
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https://projecteuler.net/problem=51
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"""
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from utils import timeit, list_primes, is_prime
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from utils import is_prime, list_primes, timeit
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@timeit("Problem 51")
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@ -18,17 +18,18 @@ def compute():
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By replacing the 1st digit of the 2-digit number *3, it turns out that
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six of the nine possible values: 13, 23, 43, 53, 73, and 83, are all prime.
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By replacing the 3rd and 4th digits of 56**3 with the same digit, this 5-digit
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number is the first example having seven primes among the ten generated numbers,
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yielding the family:
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By replacing the 3rd and 4th digits of 56**3 with the same digit, this
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5-digit number is the first example having seven primes among the ten
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generated numbers, yielding the family:
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56003, 56113, 56333, 56443, 56663, 56773, and 56993.
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Consequently 56003, being the first member of this family, is the smallest prime
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with this property.
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Consequently 56003, being the first member of this family, is the smallest
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prime with this property.
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Find the smallest prime which, by replacing part of the number (not necessarily
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adjacent digits) with the same digit, is part of an eight prime value family.
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Find the smallest prime which, by replacing part of the number (not
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necessarily adjacent digits) with the same digit, is part of an eight prime
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value family.
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"""
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primes = sorted(set(list_primes(1_000_000)) - set(list_primes(57_000)))
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@ -49,6 +50,7 @@ def compute():
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p = str(p)
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if p.count(d) == 3 and p[-1] != d:
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digits[d].append(p)
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for d in {"0", "1", "2"}:
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for p in digits[d]:
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res = 0
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@ -65,5 +67,4 @@ def compute():
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if __name__ == "__main__":
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print(f"Result for Problem 51: {compute()}")
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print(f"Result for Problem 51 is {compute()}")
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