t_099_491_increasing_subsequences

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Published: May 31, 2023 License: Apache-2.0 Imports: 0 Imported by: 0

README

https://leetcode.cn/problems/increasing-subsequences/
491. 递增子序列
中等

给你一个整数数组 nums ,找出并返回所有该数组中不同的递增子序列,递增子序列中 至少有两个元素 。你可以按 任意顺序 返回答案。

数组中可能含有重复元素,如出现两个整数相等,也可以视作递增序列的一种特殊情况。

 

示例 1:

输入:nums = [4,6,7,7]
输出:[[4,6],[4,6,7],[4,6,7,7],[4,7],[4,7,7],[6,7],[6,7,7],[7,7]]

示例 2:

输入:nums = [4,4,3,2,1]
输出:[[4,4]]

 

提示:

    1 <= nums.length <= 15
    -100 <= nums[i] <= 100

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