Code Problem
Check if Two Strings are Permutations
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This problem is about determining whether two strings are permutations of each other. A permutation is a rearrangement of the letters in a string. So, if string1 is "abc " and string2 is "bac", then string2 is a permutation of string1.
Group Anagrams
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Given an array of strings, the goal is to group together all the strings that are anagrams of each other. For example, the input array ["eat", "tea", " tan", "ate", "nat", "bat"] would return [["ate", "eat", "tea"], ["nat", "tan"], ["bat"]].
Maximum Sum Contiguous Subarray of Length k
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Given an array of n integers, find the contiguous subarray of length k that has the maximum sum.
Find the first non-repeating character in a string.
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Given a string, find and return the first non-repeating character in the string.
Longest Increasing Subsequence in an Array
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Given an array of integers, find the length of the longest increasing subsequence in the array.
Find the Majority Element in an Array
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The majority element is the element that appears more than n/2 times in an array of size n.
Sum of Array Elements
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This technical problem involves finding the sum of all the elements in an array. An example input would be [1, 2, 3, 4, 5], and the corresponding output would be 15 .
