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ProjectEuler 문제 풀이 본문

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ProjectEuler 문제 풀이

Ikjunerd 2008. 6. 9. 23:06

 projecteuler.net/ 

25번 째 문제....직접풀었음.ㅎ

<problem>

The Fibonacci sequence is defined by the recurrence relation:

Fn = Fn−1 + Fn−2, where F1 = 1 and F2 = 1.

Hence the first 12 terms will be:

F1 = 1
F2 = 1
F3 = 2
F4 = 3
F5 = 5
F6 = 8
F7 = 13
F8 = 21
F9 = 34
F10 = 55
F11 = 89
F12 = 144

The 12th term, F12, is the first term to contain three digits.

What is the first term in the Fibonacci sequence to contain 1000 digits?

<Solution>

그래서 답은..........4782 번째~!

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