Longest Increasing Subsequence
Problem Statement
Given a number sequence, find the length of its Longest Increasing Subsequence (LIS). In an increasing subsequence, all the elements are in increasing order (from lowest to highest).
Example 1:
Input: {4,2,3,6,10,1,12}
Output: 5
Explanation: The LIS is {2,3,6,10,12}.
Example 1:
Input: {-4,10,3,7,15}
Output: 4
Explanation: The LIS is {-4,3,7,15}.
Constraints:
1 <= nums.length <= 2500- -104 <= nums[i] <= 104
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