A easy Python interview practice problem on DataDriven. Write and execute real python code with instant grading.

Domain

Python

Difficulty

easy

Seniority

L3

Problem

Given a list of log lines in the format '[LEVEL] message', return a 2-tuple (counts_dict, most_common_level). counts_dict maps each LEVEL to its count. most_common_level is the LEVEL with the highest count (if tied, any tied level is acceptable).

Summary

Some lines repeat themselves.

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