Given an array A
of positive integers, A[i]
represents the value of
the i
-th sightseeing spot, and two sightseeing spots i
and
j
have distance j - i
between them.
The score of a pair (i < j
) of sightseeing spots is (A[i]
+ A[j] + i - j)
: the sum of the values of the sightseeing spots,
minus the distance between them.
Return the maximum score of a pair of sightseeing spots.
Example 1:
Input: [8,1,5,2,6]
Output: 11
Explanation: i = 0, j = 2, A[i] + A[j] + i - j = 8 + 5 + 0 - 2 = 11
Note:
2 <= A.length <= 50000
1 <= A[i] <= 1000