Lintcode DP Minimum Adjustment Cost

###Task1 Given an integer array, adjust each integers so that the difference of every adjacent integers are not greater than a given number target.

If the array before adjustment is A, the array after adjustment is B, you should minimize the sum of A[i]-B[i]

Have you met this question in a real interview? Yes Example

Given [1,4,2,3] and target = 1, one of the solutions is [2,3,2,3], the adjustment cost is 2 and it’s minimal.

Return 2.

Note You can assume each number in the array is a positive integer and not greater than 100.

###Mark