Data structures and algorithms
Valid Parentheses
Valid Parentheses: Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.
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Data structures and algorithms
Move Zeroes
Move Zeroes: Given an integer array nums, move all 0's to the end of it while maintaining the relative order of the non-zero elements.
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Data structures and algorithms
First Missing Positive
First Missing Positive: Given an unsorted integer array nums, return the smallest missing positive integer.
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After investing countless hours in courses, books, and guides, as well as honing my skills on LeetCode, we came to the realization that interview preparation can be an incredibly time-consuming process, not to mention the stress of actually passing the interviews.
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