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  1. Prepare
  2. Algorithms
  3. Implementation
  4. Divisible Sum Pairs
  5. Discussions

Divisible Sum Pairs

  • oliver_hare
     + 8 comments

    Slightly simpler O(n) python3 code

    def divisibleSumPairs(n, k, ar):
    nums = [0] * k
    count = 0
    for ele in ar:
        modu = ele % k
        count += nums[(k - modu) % k]
        nums[modu] += 1
    return count