How should I practice Rightmost Longest Character Run?

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

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Rightmost Longest Character Run

ZipRecruiter● EasyNEW GRADOA

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Problem statement

You are given a nonempty string text. A run is a maximal contiguous group of one repeated character.

Find a run with maximum length. If several runs share that length, choose the rightmost one. Return the selected character followed immediately by the decimal run length.

Function

rightmostLongestRun(text: String) → String

Examples

Example 1

text = "bbacccd"return = "c3"

The run ccc is longer than every other run.

Example 2

text = "aabb"return = "b2"

Both runs have length two, so the rightmost run bb wins.

Constraints

1 <= text.length <= 100000
text contains lowercase English letters.