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solutions/ProjectEuler/025/desc.yml
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solutions/ProjectEuler/025/desc.yml
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title: What is the first term in the Fibonacci sequence to contain 1000 digits?
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url: http://projecteuler.net/problem=25
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desc: |
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The Fibonacci sequence is defined by the recurrence relation:
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Fn = Fn1 + Fn2, where F1 = 1 and F2 = 1.
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Hence the first 12 terms will be:
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F1 = 1
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F2 = 1
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F3 = 2
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F4 = 3
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F5 = 5
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F6 = 8
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F7 = 13
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F8 = 21
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F9 = 34
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F10 = 55
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F11 = 89
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F12 = 144
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The 12th term, F12, is the first term to contain three digits.
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What is the first term in the Fibonacci sequence to contain 1000 digits?
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solution: Bruteforce
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solutions:
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solve.php:
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desc: Basic Solution - needs BCMath
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language: php
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solve.rb:
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desc: Basic solution
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language: ruby
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