Symmetric Rangoli Pattern Validator
Symmetric Rangoli Pattern Validator
HardArrays0% accepted
Meera designs digital Rangoli patterns using numeric color codes. A traditional Rangoli requires vertical symmetry—the pattern must read the same forwards and backwards. Find the longest palindromic section within any continuous rangoli pattern.
Approach
Given an array of numeric color codes representing a rangoli pattern, find the longest palindromic subarray.
Input
7
1 2 3 2 4 2 1
Output
3
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