原文链接: https://leetcode-cn.com/problems/satisfiability-of-equality-equations
英文原文You are given an array of strings equa
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原文链接: https://leetcode-cn.com/problems/check-if-word-is-valid-after-substitutions
英文原文Given a string s, determine if i
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英文原文Given a binary string s a
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英文原文Design an algorithm that accepts a stream of character
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英文原文You are given an array of strin
原文链接: https://leetcode-cn.com/problems/robot-bounded-in-circle
英文原文On an infinite plane, a robot initially stands at (
原文链接: https://leetcode-cn.com/problems/longest-duplicate-substring
英文原文Given a string s, consider all duplicated subst
