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Leetcode Problem 1655. Distribute Repeating Integers

1655. Distribute Repeating Integers

Leetcode Solutions

Backtracking with Frequency Count and Sorting

  1. Create a frequency map for the unique numbers in nums.
  2. Sort the quantity array in descending order.
  3. Define a recursive function canDistribute that takes the current index in quantity and the frequency map as arguments.
  4. If the current index is equal to the length of quantity, return true as all orders have been satisfied.
  5. Iterate over the frequency map. For each unique number with enough frequency to satisfy the current order: a. Reduce the frequency of the number by the current order quantity. b. Recursively call canDistribute with the next index. c. If the recursive call returns true, return true. d. Otherwise, backtrack by restoring the frequency of the number.
  6. If no distribution is possible, return false.
  7. Start the algorithm by calling canDistribute with index 0 and the frequency map.
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Dynamic Programming with Bitmasking

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