Leetcode Problem 1285. Find the Start and End Number of Continuous Ranges

1285. Find the Start and End Number of Continuous Ranges

Leetcode Solutions

Using ROW_NUMBER() and GROUP BY to Identify Continuous Ranges

  1. Use the ROW_NUMBER() function to assign a row number to each log_id in ascending order.
  2. Calculate the difference between log_id and the row number to identify continuous ranges.
  3. Group the results by the calculated difference.
  4. Select the minimum and maximum log_id within each group to find the start and end of each range.
  5. Order the final result by start_id to get the ranges in ascending order.

erDiagram
    Logs {
        int log_id PK
    }

Identifying Continuous Ranges Using Self-Joins

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