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Array - LeetCode Level up your coding skills and quickly land a job This is the best place to expand your knowledge and get prepared for your next interview
Length of Last Word - LeetCode Can you solve this real interview question? Length of Last Word - Given a string s consisting of words and spaces, return the length of the last word in the string A word is a maximal substring consisting of non-space characters only Example 1: Input: s = "Hello World" Output: 5 Explanation: The last word is "World" with length 5 Example 2: Input: s = " fly me to the moon " Output: 4
Remove Duplicates from Sorted Array - LeetCode Given an integer array nums sorted in non-decreasing order, remove the duplicates in-place such that each unique element appears only once The relative order of the elements should be kept the same Consider the number of unique elements in nums to be k After removing duplicates, return the number of unique elements k The first k elements of nums should contain the unique numbers in sorted
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Valid Parentheses - LeetCode Can you solve this real interview question? Valid Parentheses - Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid An input string is valid if: 1 Open brackets must be closed by the same type of brackets 2 Open brackets must be closed in the correct order 3 Every close bracket has a corresponding open bracket of the