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Quick Summary

Simulate sequential modifications on a binary array based on parsed string commands.
Process two operation types: flip the first zero to one, or explicitly clear a specified index.
Return the final array state as a concatenated string.

What This Tests

String parsing and command routing
In-place array mutation and index management
Sequential state tracking under input constraints
Recognizing brute-force bottlenecks versus optimized lookups

Common Patterns

Simulation

Heap / Priority Queue

Test Cases

Input

Output

Expected