[leetcode]300. Longest Increasing Subsequence最長遞增子序列
Given an unsorted array of integers, find the length of longest increasing subsequence.
Example:
Input:[10,9,2,5,3,7,101,18]
Output: 4 Explanation: The longest increasing subsequence is[2,3,7,101]
, therefore the length is4
.
Note:
- There may be more than one LIS combination, it is only necessary for you to return the length.
- Your algorithm should run in O(n2) complexity.
Follow up: Could you improve it to O(n log n) time complexity?
思路
代碼
[leetcode]300. Longest Increasing Subsequence最長遞增子序列
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