review sequence

codehew_2.py

# f = open("in2.in","r")
f = open("review_input.txt","r")
w = open("output.txt","w")
num = f.readline()
for it in range(0,int(num)):
	comment = [int(l) for l in f.readline().split()][1:]
	comment.sort()
	res = [ [comment[0],comment[0]] ]
	bf = comment[0]
	for i,num in enumerate(comment[1:]):
		if num-bf > 1:
			res.append([num,num])
		else:
			res[len(res)-1][1] = num
		bf = num
	r = ''
	for tup in res:
		r += ','
		if tup[0] == tup[1]:
			r += str(tup[0])
		else:
			r += '{0}->{1}'.format(str(tup[0]),str(tup[1]))
	w.write("{0}\n".format(r[1:]))
w.close()