freeCodeCamp/curriculum/challenges/japanese/10-coding-interview-prep/project-euler/problem-324-building-a-tower.md

id, title, challengeType, forumTopicId, dashedName

id	title	challengeType	forumTopicId	dashedName
5900f4b11000cf542c50ffc3	Problem 324: Building a tower	5	301981	problem-324-building-a-tower

--description--

Let f(n) represent the number of ways one can fill a 3×3×n tower with blocks of 2×1×1. You're allowed to rotate the blocks in any way you like; however, rotations, reflections etc of the tower itself are counted as distinct.

For example (with q = 100\\,000\\,007):

\begin{align} & f(2) = 229, \\\\ & f(4) = 117\\,805, \\\\ & f(10)\bmod q = 96\\,149\\,360, \\\\ & f({10}^3)\bmod q = 24\\,806\\,056, \\\\ & f({10}^6)\bmod q = 30\\,808\\,124. \end{align}

Find f({10}^{10000})\bmod 100\\,000\\,007.

--hints--

buildingTower() should return 96972774.

assert.strictEqual(buildingTower(), 96972774);

--seed--

--seed-contents--

function buildingTower() {

  return true;
}

buildingTower();

--solutions--

// solution required