Power Sequence SOLUTION Codeforces
We should call a rundown of positive numbers a0,a1,…,an−1 a force succession on the off chance that there is a positive number c, so that for each 0≤i≤n−1 then ai=ci.
Given elite of n positive numbers a0,a1,…,an−1, you are permitted to:
Reorder the rundown (for example pick a stage p of {0,1,…,n−1} and change ai to programming interface), at that point
Do the accompanying activity quite a few times: pick a record I and change ai to ai−1 or ai+1 (for example augmentation or decrement ai by 1) with an expense of 1.
Locate the base expense to change a0,a1,…,an−1 into a force grouping.
Information
The principal line contains a whole number n (3≤n≤105).
The subsequent line contains n numbers a0,a1,…,an−1 (1≤ai≤109).
Yield
Print the base expense to change a0,a1,…,an−1 into a force grouping.
Models
inputCopy
3
1 3 2
outputCopy
1
inputCopy
3
1000000000
outputCopy
1999982505
Note
In the main model, we first reorder {1,3,2} into {1,2,3}, at that point increase a2 to 4 with cost 1 to get a force grouping {1,2,4}.
