How should I practice Sort Real Number Strings?

Start by reading the full statement, solve the visible examples, then compare the pattern against related Walmart phone screen problems in FastPrep.

Is Sort Real Number Strings associated with Walmart?

FastPrep tags this as a Walmart phone screen coding practice problem when the problem catalog has that company and stage context.

Problem

WalmartFULLTIMEPHONE SCREEN

You are given a list of strings. Each string represents a real number and may be positive, negative, or contain a decimal point.

Sort the strings by their numeric values without converting the full string to an arithmetic numeric data type.

Return the sorted list of original strings. If two strings represent the same numeric value, keep their original relative order.

sortRealNumberStrings(numbers: String[]) → String[]

numbers = ["10","-3.5","2.01","0"]return = ["-3.5","0","2.01","10"]

The strings are ordered by numeric value: -3.5 < 0 < 2.01 < 10.

numbers = ["-1.25","-1.2","3","0.5","12.01"]return = ["-1.25","-1.2","0.5","3","12.01"]

Among negative values, -1.25 is smaller than -1.2.