How should I practice Closest Land Mark 👏?

Start by reading the full statement, solve the visible examples, then compare the pattern against related Meta online assessment problems in FastPrep.

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Problem · Math

Closest Land Mark 👏

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Problem statement

Imagine you're on a journey along the path of numbers, starting from your current location marked by an integer N. Your goal is to find the nearest landmark, which happens to be a Fibonacci number. But before you can reach it, you must determine the distance you need to travel to get there. Your task is to calculate this distance and return it as another integer.

Function

closestLandMark(aNum: int) → int

Complete the function closestLandMark in the editor 👉.

closestLandMark has the following parameter:

int aNum: an integer number

Returns

int: the distance to the closest "land mark".

Memo: For original prompt, pls refer to source image 💖

Examples

Example 1

aNum = 25return = 4

No explanation provided for now. Will add once find it :)

Example 2

aNum = 5return = 0