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g0401_0500.s0491_increasing_subsequences.readme.md Maven / Gradle / Ivy
491\. Non-decreasing Subsequences
Medium
Given an integer array `nums`, return _all the different possible non-decreasing subsequences of the given array with at least two elements_. You may return the answer in **any order**.
**Example 1:**
**Input:** nums = [4,6,7,7]
**Output:** [[4,6],[4,6,7],[4,6,7,7],[4,7],[4,7,7],[6,7],[6,7,7],[7,7]]
**Example 2:**
**Input:** nums = [4,4,3,2,1]
**Output:** [[4,4]]
**Constraints:**
* `1 <= nums.length <= 15`
* `-100 <= nums[i] <= 100`
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