How should I practice Sorted Character Frequencies?

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

Is Sorted Character Frequencies associated with Deloitte?

FastPrep tags this as a Deloitte online assessment coding practice problem when the problem catalog has that company and stage context.

Problem · String

Sorted Character Frequencies

Learn this problem

● Easy

DeloitteNEW GRADOA

Problem statement

You are given a lowercase English word word. Count how many times each distinct character occurs.

Return one string formed by listing the distinct characters in ascending alphabetical order, immediately followed by each character's decimal frequency.

Function

sortedCharacterFrequencies(word: String) → String

Examples

Example 1

word = "hello"return = "e1h1l2o1"

The distinct letters are e, h, l, and o in alphabetical order, with frequencies 1, 1, 2, and 1.

Example 2

word = "zzzaabb"return = "a2b2z3"

Alphabetical ordering places a and b before z.

Example 3

word = "aaaaaaaaaaaa"return = "a12"

A frequency may contain more than one decimal digit.

Constraints

1 <= word.length <= 100000
word contains only lowercase English letters.