human
Check if elements of given array can be rearranged such that ( arr [ i ] + i * K ) % N = i for all values of i in range [ 0 , N | Function to check if it is possible to generate all numbers in range [ 0 , N - 1 ] using the sum of elements + in the multiset A and B mod N.
If no more pair of elements can be selected.
If the number of elements in C = N , then return true.
Otherwise return false.
Stores the value of final answer.
Iterate through all the pairs in the given multiset A and B.
Stores the set A without x.
Stores the set A without y.
Stores the set A without x + y % N.
Recursive call.
Return Answer.
Function to check if it is possible to rearrange array elements such that ( arr [ i ] + i * K ) % N = i.
Stores the values of arr [ ] modulo N.
Stores all the values of i * K modulo N.
Print Answer.
Driver code"
Solution in Python:
 ... Write me a code to check if elements of given array can be rearranged such that ( arr [ i ] + i * K ) % N = i for all values of i in range [ 0 , N and the other steps required?
assistant
#Here is code to check if elements of given array can be rearranged such that ( arr [ i ] + i * K ) % N = i for all values of i in range [ 0 , N and the other steps required.
 def isPossible ( A , B , C , N ) :
	if ( len ( A ) == 0 or len ( B ) == 0 ) :
		if ( len ( C ) == N ) :
			return True
		else :
			return False
	ans = False
	for x in A :
		for y in B :
			_A = A
			_A . remove ( x )
			_B = B
			_B . remove ( y )
			_C = C
			_C . add ( ( x + y ) % N )
			ans = ( ans or isPossible ( _A , _B , _C , N ) )
	return ans
def rearrangeArray ( arr , N , K ) :
	A = [ ]
	for i in range ( N ) :
		A . append ( arr [ i ] % N )
	A . sort ( )
	B = [ ]
	for i in range ( N ) :
		B . append ( ( i * K ) % N )
	B . sort ( )
	C = set ( )
	if isPossible ( A , B , C , N ) :
		print ( " YES " )
	else :
		print ( " NO " )
arr = [ 1 , 2 , 0 ]
K = 5
N = len ( arr )
rearrangeArray ( arr , N , K )