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Leetcode Problem 2927. Distribute Candies Among Children III

2927. Distribute Candies Among Children III

Leetcode Solutions

Inclusion-Exclusion Principle with Stars and Bars

  1. Calculate the total number of ways to distribute n candies among 3 children without any restrictions using the stars and bars method (comb(n + 2, 2)).
  2. Subtract the number of ways where at least one child receives more than limit candies.
  3. Add back the number of ways where at least two children receive more than limit candies.
  4. Subtract the number of ways where all three children receive more than limit candies.
  5. Return the final count after applying the inclusion-exclusion principle.
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