human
Check if the given Prufer sequence is valid or not | Function that returns true if given Prufer sequence is valid.
Iterate in the Prufer sequence.
If out of range.
Driver code"
How can the above be solved in Python?
 Give me a code to check if the given Prufer sequence is valid or not and the other steps required?
assistant
#Here is code to check if the given Prufer sequence is valid or not and the other steps required.
 def isValidSeq ( a , n ) :
	nodes = n + 2 ;
	for i in range ( n ) :
		if ( a [ i ] < 1 or a [ i ] > nodes ) :
			return False ;
	return True ;
if __name__ == " _ _ main _ _ " :
	a = [ 4 , 1 , 3 , 4 ] ;
	n = len ( a ) ;
	if ( isValidSeq ( a , n ) ) :
		print ( " Valid " ) ;
	else :
		print ( " Invalid " ) ;