摘要：
Given an array of strings words and an integer k, return the k most frequent strings. Return the answer sorted by the frequency from highest to lowest 阅读全文
posted @ 2020-03-13 14:50
CNoodle
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We have a list of points on the plane. Find the K closest points to the origin (0, 0). (Here, the distance between two points on a plane is the Euclid 阅读全文
posted @ 2020-03-13 11:51
CNoodle
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Given the root of a binary tree, return the number of uni-value subtrees. A uni-value subtree means all nodes of the subtree have the same value. Exam 阅读全文
posted @ 2020-03-13 01:42
CNoodle
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