Problem 53965. Easy Sequences 67: Project Euler Problem 1 - Not Again!!!

Created by Ramon Villamangca

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You know the drill...
Given two integers x and n, with , find the sum of all positive integers below x, that are multiples of any of the integers from 2 up to n.
For example, for  and , the sum of the multiples of 2, 3, 4 or 5 is:
            .

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Last Solution submitted on Feb 12, 2022

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Ramon Villamangca on 27 Jan 2022

Hi David,
I avoided exceeding 'flintmax', minimized multiplication, division and conditional statements. For small n's, like in test 7, | only used a simple sieving algorithm. I also checked my solution with Elixir, and Java and I still get the same result for test 7.

David Hill on 27 Jan 2022

I initially did a sieving algorithm, but it was not efficient enough for large n. I did not consider splitting with two different algorithms.

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Problem 53965. Easy Sequences 67: Project Euler Problem 1 - Not Again!!!

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Problem 53965. Easy Sequences 67: Project Euler Problem 1 - Not Again!!!

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Last 200 Solutions

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Problem Recent Solvers2

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More from this Author116

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