Remove Duplicates Ninja is playing with numbers but hates when he gets duplicate numbers. Ninja is provided an array, and he wants to remove all duplicate elements and return the array, but he has to maintain the order in which the elements were supplied to him. Input Format: The first line contains a single integer T ...

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CodingNinjas
author
2y
Brute ForceWe will traverse the whole array and check if that element previously occurred or not. The steps are as follows:We initialize a vector ‘ans’ to store the final non-duplicate elements.W...
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CodingNinjas
author
2y
Hash MapWe will traverse the whole array and keep a count of the frequency of each element. If the frequency is one or more than one, then we return only one occurrence of that element only. The ...
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