Leetcode Problem 1262. Greatest Sum Divisible by Three

1262. Greatest Sum Divisible by Three

Leetcode Solutions

Dynamic Programming - Remainder Tracking

  1. Initialize an array dp of size 3 with dp[0] = 0, dp[1] = -infinity, and dp[2] = -infinity.
  2. Iterate through each number in the input array nums.
  3. For each number, create a copy of the current state of dp.
  4. Update dp[(i + num) % 3] with the maximum of its current value and i + num, where i is an element from the copied state of dp.
  5. After processing all numbers, return dp[0] as the maximum sum divisible by 3.
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Greedy with Sorting and Modulo Buckets

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