kombo.py

#!/usr/bin/python

points = range(700)

def dispatch(packet):
	global markings, packet_count, pair_count
	if 'markings' not in globals():
		markings = [[i == j for j in xrange(len(points))] for i in xrange(len(points))]
	for pair in packet:
		if pair[1] < pair[0]:
			pair = (pair[1], pair[0])
		if markings[pair[0]][pair[1]]:
			print('Duplicate %d, %d' % (pair[0], pair[1]))
		markings[pair[0]][pair[1]] = True
	if 'packet_count' not in globals():
		packet_count = 0
	if 'pair_count' not in globals():
		pair_count = 0
	packet_count += 1
	pair_count += len(packet)
	print('Counters: %d pairs, %d packets' % (pair_count, packet_count))

packet = []
for i in xrange(len(points)):
	for j in xrange(i + 1, len(points)):
		packet.append((points[i], points[j]))
		if len(packet) == 100:
			dispatch(packet)
			packet = []
if len(packet) > 0:
	dispatch(packet)
	packet = []