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Leetcode Problem 1291. Sequential Digits

1291. Sequential Digits

Leetcode Solutions

Sliding Window Approach

  1. Initialize a string sample with '123456789'.
  2. Determine the lengths of low and high to set the bounds for the sliding window size.
  3. Iterate over all possible lengths from the length of low to the length of high.
  4. For each length, iterate over all possible start indexes from 0 to 9 - length.
  5. Construct a number from the digits inside the current sliding window.
  6. If the number is within the range [low, high], add it to the output list nums.
  7. Return the sorted list nums.
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Precomputation Approach

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