CSES - NOI 2019 - Results
Submission details
Task:Distance Code
Sender:Nicolai Epshtein
Submission time:2019-03-06 19:30:15 +0200
Language:Python3
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.04 s1, 2, 3details
#20.06 s1, 2, 3details
#30.05 s1, 2, 3details
#40.05 s1, 2, 3details
#50.04 s1, 2, 3details
#60.04 s1, 2, 3details
#70.05 s1, 2, 3details
#80.04 s1, 2, 3details
#90.05 s1, 2, 3details
#100.05 s1, 2, 3details
#110.06 s1, 2, 3details
#120.05 s2, 3details
#130.06 s2, 3details
#140.05 s2, 3details
#150.05 s2, 3details
#16--3details
#17--3details
#18--3details
#19--3details
#200.05 s1, 2, 3details

Code

t = int(input())
n = int(input())

if t == 1:
	nodes = [[] for _ in range(n+1)]
	for i in range(n-1):
		u, v = [int(x) for x in input().split(" ")]
		nodes[u].append(v)
		nodes[v].append(u)

	path = []
	def remove():
		ind = nodes.index(min((x for x in nodes[::-1] if len(x) > 0), key=len))
		path.append (ind)
		nodes[nodes[ind][0]].remove(ind)
		if not nodes[nodes[ind][0]]:
			path.append(nodes[ind][0])
		nodes[ind] = []
		remove()

	try:
		remove()
	except:
		print(" ".join([str(x) for x in path]))

if t == 2:
	nodes = [[] for _ in range(n)]
	parent = 0
	try:
		path = [int(x) for x in input().split(" ")]
		path = path[::-1]
		for i in range(n):
			if i == 0:
				parent = path[i]-1
			elif path[i] > path[i+1]:
				None
			else:
				parent = parent+1
			nodes[parent].append(path[i+1])
	except:
		for i in range(n):
			for node in nodes[i]:
				print(i+1, node)

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
1
2
2 1

correct output
(empty)

user output
(empty)

Test 2

Group: 1, 2, 3

Verdict:

input
1
3
3 1
2 1

correct output
(empty)

user output
1 2

Test 3

Group: 1, 2, 3

Verdict:

input
1
4
3 2
2 1
4 1

correct output
(empty)

user output
1 2
1 1

Test 4

Group: 1, 2, 3

Verdict:

input
1
4
2 3
3 4
1 3

correct output
(empty)

user output
1 2
2 2

Test 5

Group: 1, 2, 3

Verdict:

input
1
5
3 5
4 1
1 3
...

correct output
(empty)

user output
1 1
2 1
3 1

Test 6

Group: 1, 2, 3

Verdict:

input
1
5
3 2
3 4
5 1
...

correct output
(empty)

user output
1 2
2 2
2 1

Test 7

Group: 1, 2, 3

Verdict:

input
1
5
4 3
1 4
4 2
...

correct output
(empty)

user output
1 2
2 2
3 2

Test 8

Group: 1, 2, 3

Verdict:

input
1
10
9 3
8 9
2 9
...

correct output
(empty)

user output
1 2
2 2
3 2
4 2
5 2
...

Test 9

Group: 1, 2, 3

Verdict:

input
1
10
9 2
5 8
7 1
...

correct output
(empty)

user output
1 2
2 3
2 1
3 1
4 1
...

Test 10

Group: 1, 2, 3

Verdict:

input
1
10
10 4
9 1
4 7
...

correct output
(empty)

user output
1 2
2 3
2 1
3 5
3 1
...

Test 11

Group: 1, 2, 3

Verdict:

input
1
10
2 6
4 3
3 5
...

correct output
(empty)

user output
1 2
2 3
2 1
3 1
4 1
...

Test 12

Group: 2, 3

Verdict:

input
1
500
10 6
6 255
6 428
...

correct output
(empty)

user output
1 2
2 2
3 2
4 2
5 2
...

Test 13

Group: 2, 3

Verdict:

input
1
500
152 466
451 313
158 479
...

correct output
(empty)

user output
1 2
2 3
2 1
3 5
3 1
...

Test 14

Group: 2, 3

Verdict:

input
1
500
109 440
330 190
443 161
...

correct output
(empty)

user output
1 2
2 3
2 1
3 1
4 1
...

Test 15

Group: 2, 3

Verdict:

input
1
500
144 373
257 233
341 318
...

correct output
(empty)

user output
1 2
2 3
2 1
3 1
4 1
...

Test 16

Group: 3

Verdict:

input
1
100000
54983 75172
93807 75172
44082 75172
...

correct output
(empty)

user output
(empty)

Test 17

Group: 3

Verdict:

input
1
100000
88863 19059
86423 76688
98536 95984
...

correct output
(empty)

user output
(empty)

Test 18

Group: 3

Verdict:

input
1
100000
59979 6389
19097 24999
27846 82330
...

correct output
(empty)

user output
(empty)

Test 19

Group: 3

Verdict:

input
1
100000
58761 66001
25102 51081
98625 67861
...

correct output
(empty)

user output
(empty)

Test 20

Group: 1, 2, 3

Verdict:

input
1
6
2 1
3 2
4 2
...

correct output
(empty)

user output
1 2
2 2
3 3
3 2