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Warmup-2 > array667
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Given an array of ints, return the number of times that two 6's are next to each other in the array. Also count instances where the second "6" is actually a 7.

array667([6, 6, 2]) → 1
array667([6, 6, 2, 6]) → 1
array667([6, 7, 2, 6]) → 1

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public int array667(int[] nums) { }


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