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Interval Obstacle Check
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Interval Obstacle Check

MediumPython

Problem

Given a list of operations, check for obstacles in specified intervals based on the operations provided.

Each operation is either ["add", position], which places an obstacle, or ["query", left, right], which asks whether an obstacle currently exists in the inclusive interval [left, right]. Return query results in order. Use the signature def obstacle_queries(operations):.

Constraints

  • 1 <= operations.length <= 10^4
  • Each operation is either ["add", position] or ["query", left, right].
  • -10^9 <= position, left, right <= 10^9
  • For every query, left <= right.
  • Return one boolean for each query operation.

Function Signature

def obstacle_queries(operations):
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