Leetcode Problem 1826. Faulty Sensor

1826. Faulty Sensor

Leetcode Solutions

Single Pass Sensor Defect Identification

  1. Initialize an index variable i to 0.
  2. Increment i until sensor1[i] is not equal to sensor2[i] or until the end of the arrays is reached.
  3. If the end is reached without finding a discrepancy, return -1 as both sensors are identical.
  4. Check if the remaining values of sensor1 can be aligned with sensor2 by incrementing i while sensor1[i] == sensor2[i + 1] and sensor1[i + 1] == sensor2[i].
  5. If i reaches the second to last index, return -1 as the discrepancy is ambiguous.
  6. If sensor1[i] == sensor2[i + 1], return 1 indicating sensor 1 is faulty.
  7. Otherwise, return 2 indicating sensor 2 is faulty.
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Two Pointer Sensor Defect Identification

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