human
Give me a code to largest Derangement of a Sequence and the other steps required given the following:
Largest Derangement of a Sequence | Python3 program to find the largest derangement.
Stores result.
Insert all elements into a priority queue.
Fill Up res [ ] from left to right.
New Element poped equals the element in original sequence . Get the next largest element.
If given sequence is in descending order then we need to swap last two elements again.
Driver code"
How can the above be solved in Python?
assistant
#Here is code to largest Derangement of a Sequence and the other steps required.
 def printLargest ( seq , N ) :
	res = [ 0 ] * N
	pq = [ ]
	for i in range ( N ) :
		pq . append ( seq [ i ] )
	for i in range ( N ) :
		pq . sort ( )
		pq . reverse ( )
		d = pq [ 0 ]
		del pq [ 0 ]
		if ( d != seq [ i ] or i == N - 1 ) :
			res [ i ] = d
		else :
			res [ i ] = pq [ 0 ]
			del pq [ 0 ]
			pq . append ( d )
	if ( res [ N - 1 ] == seq [ N - 1 ] ) :
		res [ N - 1 ] = res [ N - 2 ]
		res [ N - 2 ] = seq [ N - 1 ]
	print ( " Largest ▁ Derangement " )
	for i in range ( N ) :
		print ( res [ i ] , end = " ▁ " )
seq = [ 92 , 3 , 52 , 13 , 2 , 31 , 1 ]
n = len ( seq )
printLargest ( seq , n )