Submission #3391867

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Source Code Expand

n = int(input())
a = list(map(int,input().split()))

cost = 0
i = 0

for i in range(0,n-1,3):
  if i + 3 <= n-1:
    cost += min(abs(a[i+1]-a[i])+ abs(a[i+3]-a[i+1]), abs(a[i+2]-a[i])+ abs(a[i+3]-a[i+2]))
  elif i + 2 <= n-1:
    cost += min(abs(a[i+1]-a[i]), abs((a[i+2]-a[i])))
  else:
    cost += abs(a[i+1]-a[i])


print(cost)

Submission Info

Judge Result