human
What is a code to cost of rearranging the array such that no element exceeds the sum of its adjacent elements and the other steps required given the following:
Cost of rearranging the array such that no element exceeds the sum of its adjacent elements | Function to check if given elements can be arranged such that sum of its neighbours is strictly greater.
Initialize the total cost.
Storing the original index of elements in a hashmap.
Sort the given array.
Check if a given condition is satisfies or not.
First number.
Add the cost to overall cost.
Last number.
Add the cost to overall cost.
Add the cost to overall cost.
Printing the cost.
Given array.
Function call"
How can the above be solved in Python?
assistant
#Here is code to cost of rearranging the array such that no element exceeds the sum of its adjacent elements and the other steps required.
 def Arrange ( arr , n ) :
	cost = 0
	index = { }
	for i in range ( n ) :
		index [ arr [ i ] ] = i
	arr . sort ( )
	for i in range ( n ) :
		if ( i == 0 ) :
			if ( arr [ i ] > arr [ i + 1 ] + arr [ - 1 ] ) :
				print ( " - 1" )
				return
			else :
				cost += abs ( index [ arr [ i ] ] - i )
		elif ( i == n - 1 ) :
			if ( arr [ i ] > arr [ i - 1 ] + arr [ 0 ] ) :
				print ( " - 1" )
				return
			else :
				cost += abs ( index [ arr [ i ] ] - i )
		else :
			if ( arr [ i ] > arr [ i - 1 ] + arr [ i + 1 ] ) :
				print ( " - 1" )
				return
			else :
				cost += abs ( index [ arr [ i ] ] - i )
	print ( cost )
	return
arr = [ 2 , 4 , 5 , 1 , 3 ]
N = len ( arr )
Arrange ( arr , N )