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Background:
There is an integer array given, and we need to find a number of repetition of an integer.
[234, 2, 12, 234, 5, 10, 1000, 2, 99]
This will return 2.
[234, 2, 12, 234]
[2, 12, 234, 5, 10, 1000, 2]
Challenges
1. Input integer array length is 1 < length <= 1,000,000
2. Range of eac...