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Quick Summary

Simulate a corporate expense policy engine by validating transactions against configurable rules.
Process conditional filters and arithmetic or string comparisons across different expense fields.
Aggregate and format all rule violations per expense into a specified output string.

What This Tests

Data parsing and normalization from raw string arrays
Conditional logic evaluation and rule application
Type conversion and operator handling (EQ, GT, LT, NOT_ALLOWED)
Result aggregation and formatted string generation

Common Patterns

Simulation

Test Cases

Input

Output

Expected