* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
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id, title, challengeType, videoUrl, dashedName
id | title | challengeType | videoUrl | dashedName |
---|---|---|---|---|
5900f4531000cf542c50ff65 | 问题230:斐波纳契语 | 5 | problem-230-fibonacci-words |
--description--
对于任何两个数字串A和B,我们将FA,B定义为序列(A,B,AB,BAB,ABBAB,...),其中每个术语是前两个术语的串联。
此外,我们将DA,B(n)定义为FA的第一项中的第n个数字,B包含至少n个数字。
例:
设A = 1415926535,B = 8979323846。我们希望找到DA,B(35)。
FA,B的前几个术语是:1415926535 8979323846 14159265358979323846 897932384614159265358979323846 14159265358979323846897932384614159265358979323846
然后DA,B(35)是第五项中的第35位,即9。
现在我们使用A小数点后面的前100位数字:14159265358979323846264338327950288419716939937510 58209749445923078164062862089986280348253421170679
对于B下一百个数字:
82148086513282306647093844609550582231725359408128 48111745028410270193852110555964462294895493038196。
求Σn= 0,1,...,17 10n×DA,B((127 + 19n)×7n)。
--hints--
euler230()
应返回850481152593119200。
assert.strictEqual(euler230(), 850481152593119200);
--seed--
--seed-contents--
function euler230() {
return true;
}
euler230();
--solutions--
// solution required