human
Give me a code to find a number K such that exactly K array elements are greater than or equal to K and the other steps required given the following:
Find a number K such that exactly K array elements are greater than or equal to K | Function to find K for which there are exactly K array elements greater than or equal to K.
Finding the largest array element.
Possible values of K.
Traverse the array.
If current array element is greater than or equal to i.
If i array elements are greater than or equal to i.
Otherwise.
Driver Code"
How can the above be solved in Python?
assistant
#Here is code to find a number K such that exactly K array elements are greater than or equal to K and the other steps required.
 def zvalue ( nums ) :
	m = max ( nums )
	cnt = 0
	for i in range ( 0 , m + 1 , 1 ) :
		cnt = 0
		for j in range ( 0 , len ( nums ) , 1 ) :
			if ( nums [ j ] >= i ) :
				cnt += 1
		if ( cnt == i ) :
			return i
	return - 1
if __name__ == ' _ _ main _ _ ' :
	nums = [ 7 , 8 , 9 , 0 , 0 , 1 ]
	print ( zvalue ( nums ) )