You are given an integer array nums and an integer k. Find the maximum subarray sum of all the subarrays of nums that meet the following conditions:
k, andReturn the maximum subarray sum of all the subarrays that meet the conditions. If no subarray meets the conditions, return 0.
A subarray is a contiguous non-empty sequence of elements within an array.
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Example 1:
\n\n\nInput: nums = [1,5,4,2,9,9,9], k = 3\nOutput: 15\nExplanation: The subarrays of nums with length 3 are:\n- [1,5,4] which meets the requirements and has a sum of 10.\n- [5,4,2] which meets the requirements and has a sum of 11.\n- [4,2,9] which meets the requirements and has a sum of 15.\n- [2,9,9] which does not meet the requirements because the element 9 is repeated.\n- [9,9,9] which does not meet the requirements because the element 9 is repeated.\nWe return 15 because it is the maximum subarray sum of all the subarrays that meet the conditions\n\n\n
Example 2:
\n\n\nInput: nums = [4,4,4], k = 3\nOutput: 0\nExplanation: The subarrays of nums with length 3 are:\n- [4,4,4] which does not meet the requirements because the element 4 is repeated.\nWe return 0 because no subarrays meet the conditions.\n\n\n
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Constraints:
\n\n1 <= k <= nums.length <= 1051 <= nums[i] <= 105Compiled with clang 11 using the latest C++ 20 standard.
Your code is compiled with level two optimization (-O2). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.
Most standard library headers are already included automatically for your convenience.
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