Grokking Oracle Coding Interview
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Eduardo Sánchez
· 4 years ago
Could I not push each element to a hashmap and then just concat it?
{ 0: [0,0], 1: [1,1], 2: [2] } then I just concat those 3 arrays (still treating each of the numbers as an object. This will also be O(n) for time and space O(n)
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