{ "data": { "question": { "questionId": "3318", "questionFrontendId": "3040", "boundTopicId": null, "title": "Maximum Number of Operations With the Same Score II", "titleSlug": "maximum-number-of-operations-with-the-same-score-ii", "content": "
Given an array of integers called nums
, you can perform any of the following operation while nums
contains at least 2
elements:
nums
and delete them.nums
and delete them.nums
and delete them.The score of the operation is the sum of the deleted elements.
\n\nYour task is to find the maximum number of operations that can be performed, such that all operations have the same score.
\n\nReturn the maximum number of operations possible that satisfy the condition mentioned above.
\n\n\n
Example 1:
\n\n\nInput: nums = [3,2,1,2,3,4]\nOutput: 3\nExplanation: We perform the following operations:\n- Delete the first two elements, with score 3 + 2 = 5, nums = [1,2,3,4].\n- Delete the first and the last elements, with score 1 + 4 = 5, nums = [2,3].\n- Delete the first and the last elements, with score 2 + 3 = 5, nums = [].\nWe are unable to perform any more operations as nums is empty.\n\n\n
Example 2:
\n\n\nInput: nums = [3,2,6,1,4]\nOutput: 2\nExplanation: We perform the following operations:\n- Delete the first two elements, with score 3 + 2 = 5, nums = [6,1,4].\n- Delete the last two elements, with score 1 + 4 = 5, nums = [6].\nIt can be proven that we can perform at most 2 operations.\n\n\n
\n
Constraints:
\n\n2 <= nums.length <= 2000
1 <= nums[i] <= 1000
dp[l][r]
to find a maximum number of operations on the subarray nums[l..r]
."
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