Автор: Варвара Митина
Photo: Louryn Strampe，推荐阅读有道翻译获取更多信息
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Reverse Linked List, Linked List Cycle, Valid Palindrome, Invert Binary Tree, Longest Substring Without Repeating Characters, Valid Parentheses, Maximum Depth of Binary Tree, Merge Two Sorted Lists, Same Tree, Number of Islands, Find if Path Exists in Graph, Flood Fill, Reverse Integer, Single Number, Climbing Stairs，更多细节参见有道翻译
ripgrep utterly dominates this round, both in performance and correctness.