feat(work): add Partition List solution stub

work/1/Medium/Linked List/86.partition-list.py

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+"""
+86. Partition List
+Difficulty: Medium
+https://leetcode.com/problems/partition-list/
+
+──────────────────────────────────────────────────
+
+Given the head of a linked list and a value x, partition it such that
+all nodes less than x come before nodes greater than or equal to x.
+
+You should preserve the original relative order of the nodes in each
+of the two partitions.
+
+ 
+
+Example 1:
+
+Input: head = [1,4,3,2,5,2], x = 3
+Output: [1,2,2,4,3,5]
+
+Example 2:
+
+Input: head = [2,1], x = 2
+Output: [1,2]
+
+ 
+
+Constraints:
+
+	• The number of nodes in the list is in the range [0, 200].
+
+	• -100 <= Node.val <= 100
+
+	• -200 <= x <= 200
+"""
+
+# Definition for singly-linked list.
+# class ListNode:
+#     def __init__(self, val=0, next=None):
+#         self.val = val
+#         self.next = next
+class Solution:
+    def partition(self, head: ListNode | None, x: int) -> ListNode | None:
+