Duplicate Voter ID Fraud Detection
Duplicate Voter ID Fraud Detection
MediumArrays0% accepted
The Election Commission in Mumbai processes voter registrations. Meera detects duplicate voter IDs to prevent registration fraud.
Approach
Given an array of voter ID numbers, find all voter IDs that appear more than once and return them in sorted order.
Input
voterIds=[101,102,101,103,102]
Output
[101,102]
More Arrays problems
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