Parse and Validate Sensor Logs | Dataford Interview Questions

Write a function to parse and validate structured log data from a simulated hardware sensor.

Implement parse_sensor_logs(lines) where each line contains comma-separated key=value fields for timestamp, sensor, temperature, and status. Return a dictionary containing parsed valid records and the zero-based indices of invalid lines. A valid line has all four unique fields, a nonnegative integer timestamp, a nonempty alphanumeric-or-underscore sensor name, a finite temperature from -100.0 through 200.0, and status OK, WARN, or ERROR.

Constraints

0 <= len(lines) <= 1000
Each line contains at most 10 comma-separated tokens
Each line is a string of at most 500 characters
Temperature must be finite and within [-100.0, 200.0]
Valid status values are exactly OK, WARN, and ERROR

Function Signature

def parse_sensor_logs(lines):

Your question is Parse and Validate Sensor Logs. Start with the requirements in the Question tab.

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Problem

Write a function to parse and validate structured log data from a simulated hardware sensor.

Constraints

0 <= len(lines) <= 1000
Each line contains at most 10 comma-separated tokens
Each line is a string of at most 500 characters
Temperature must be finite and within [-100.0, 200.0]
Valid status values are exactly OK, WARN, and ERROR

Function Signature

def parse_sensor_logs(lines):

Your question is Parse and Validate Sensor 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.