Aggregate Error Codes from Logs | Dataford Interview Questions

Given an array of log lines logs and an array of target error codes target_codes, return a dictionary mapping each target error code to the number of times it appears in the logs. A valid error code appears in the form ERROR_CODE=<code> within a log line. Ignore malformed lines and codes not present in target_codes.

Constraints

1 <= len(logs) <= 10^5
1 <= len(target_codes) <= 10^4
1 <= len(logs[i]) <= 10^3
Target codes are unique strings
A valid code appears as ERROR_CODE=<code> and ends at the next space or end of line

Function Signature

def aggregate_error_codes(logs, target_codes):

Your question is Aggregate Error Codes from Logs. Start with the requirements in the Question tab.

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Problem

Constraints

1 <= len(logs) <= 10^5
1 <= len(target_codes) <= 10^4
1 <= len(logs[i]) <= 10^3
Target codes are unique strings
A valid code appears as ERROR_CODE=<code> and ends at the next space or end of line

Function Signature

def aggregate_error_codes(logs, target_codes):

Your question is Aggregate Error Codes from Logs. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.