Symbolic Stream Values | Dataford Interview Questions

Given an incoming stream of characters containing values like $300 and £400, write getValues(symbol, stream) that returns the array of values for that symbol.

Asked in the phone screen stage. getValues("$", "abc \$300 £400 \$30 abvv cvc") returns [300, 30]. Reported follow-up: how will you handle tokens like $\$300 and \$200\$300 when you cannot peek the next value?

Function contract

symbol: a single-character string such as "$" or "£"
stream: a string containing arbitrary characters and zero or more currency values
Return: a list of integers in the order they appear

Constraints

0 <= len(stream) <= 10^5
symbol is a single character string
Each valid value fits in a 32-bit signed integer
Values contain only digits immediately after the symbol
Malformed symbol occurrences should be ignored

Function Signature

def getValues(symbol, stream):

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