Solving Search 2D Matrix using Binary Search.

Problem

Solve Search 2D Matrix.

Pattern

This problem demonstrates the Binary Search pattern.

Approach

Binary search on answer or array.

Solution 

  // solution

Complexity

O(log n)

Best Practices

  • Identify the pattern before coding — pattern recognition saves time
  • Handle edge cases: empty input, single element, duplicates
  • Use descriptive variable names even in timed interviews
  • Test with the provided examples plus one custom case