human
Maximum number of parallelograms that can be made using the given length of line segments | Function to find the maximum number of parallelograms can be made.
Finding the length of the frequency array.
Increasing the occurrence of each segment.
To store the count of parallelograms.
Counting parallelograms that can be made using 4 similar sides.
counting segments which have occurrence left >= 2.
Adding parallelograms that can be made using 2 similar sides.
Driver code"
Solution in Python:
 ... Can you provide a code to maximum number of parallelograms that can be made using the given length of line segments and the other steps required?
assistant
#Here is code to maximum number of parallelograms that can be made using the given length of line segments and the other steps required.
 def convert ( n , a ) :
	z = max ( a ) + 1
	ff = [ 0 ] * z
	for i in range ( n ) :
		ff [ a [ i ] ] += 1
	cc = 0
	for i in range ( z ) :
		cc += ff [ i ] // 4
		ff [ i ] = ff [ i ] % 4
	vv = 0
	for i in range ( z ) :
		if ( ff [ i ] >= 2 ) :
			vv += 1
	cc += vv // 2
	print ( cc )
n = 4
a = [ 1 , 2 , 1 , 2 ]
convert ( n , a )