Leetcode Problem 2272. Substring With Largest Variance

2272. Substring With Largest Variance

Leetcode Solutions

Key approach of the solution using Modified Kadane's Algorithm

  1. Initialize a counter to record the count of each distinct character in s.
  2. For each pair of distinct letters major and minor, apply the modified Kadane's algorithm.
  3. Set global_max, major_count, and minor_count to 0, and let rest_minor be the count of minor in s.
  4. Traverse s, incrementing major_count for major and minor_count for minor, decrementing rest_minor for minor.
  5. Update global_max only if minor_count > 0.
  6. If major_count - minor_count < 0, reset counts to 0 only if rest_minor > 0.
  7. Repeat for the next pair of characters.
  8. Return global_max.
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Brute Force Approach to Find Largest Variance in Substrings

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