C# 代码
public class Solution {
public int MinLengthAfterRemovals(IList<int> nums) {
int n = nums.Count, result = n;
for (int i = 0, j = (n + 1) / 2; j < n; i++, j++){
if (nums[i] != nums[j]) result -= 2;
}
return result;
}
}