Hashing
Two-Sum Problem
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The Two-Sum Problem is a classic problem in computer science that involves finding two numbers in an array that add up to a given target number. This problem can be solved using a hashing algorithm , which is a type of algorithm that is used to store and retrieve data from a data structure called a hash table.
Determining If a Pair of Integers in an Array Sums to a Target Value
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This problem asks whether a given array of integers contains a pair of numbers that sum to a given target value. For example, given an array [1, 2, 3, 4, 5 ] and a target value of 6, the answer would be True, since 1 + 5 = 6.
Counting Strings in an Array
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This problem asks the reader to return a map consisting of the strings in an array as keys, and the number of times each string appears in the array as values.
Duplicate values in unsorted array
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This technical problem deals with finding duplicate values in an unsorted array. The function should return true if any duplicates are found.
TwoSum: Find Two Numbers That Add Up to a Specific Target Number
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The twoSum function should return the indices of two numbers in an array that add up to a specific target number.
