What does Longest Increasing Subsequence (LIS) refer to?
- The longest subarray with elements in non-decreasing order.
- The longest subarray with elements in strictly increasing order.
- The maximum sum of elements in a subarray with consecutive elements.
- The minimum sum of elements in a subarray with consecutive elements.
Longest Increasing Subsequence (LIS) refers to the longest subarray with elements in strictly increasing order. The goal is to find the length of this subsequence.
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