CSES - NOI 2024 - Results
Submission details
Task:Anime Shops
Sender:Håkon Støren
Submission time:2024-03-06 15:36:14 +0200
Language:Python3 (CPython3)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.02 s1, 3details
#20.02 s1, 3details
#30.02 s1, 3details
#40.02 s1, 3details
#50.02 s3details
#60.02 s3details
#70.02 s3details
#80.02 s3details
#90.02 s2, 3details
#100.02 s2, 3details
#110.02 s2, 3details
#120.02 s3details
#130.02 s3details
#140.02 s3details
#150.02 s3details
#160.02 s3details

Code

class UnionFind:
def __init__(self, N):
self.p = [i for i in range(N)]
self.rank = [0 for i in range(N)]
self.set_size = [1 for i in range(N)]
self.num_sets = N
def find_set(self, i):
if self.p[i] == i:
return i
else:
self.p[i] = self.find_set(self.p[i])
return self.p[i]
def is_same_set(self, i, j):
return self.find_set(i) == self.find_set(j)
def union_set(self, i, j):
if not self.is_same_set(i, j):
self.num_sets -= 1
x = self.find_set(i)
y = self.find_set(j)
if self.rank[x] > self.rank[y]:
self.p[y] = x
self.set_size[x] += self.set_size[y]
else:
self.p[x] = y
self.set_size[y] += self.set_size[x]
if self.rank[x] == self.rank[y]:
self.rank[y] += 1
def num_disjoint_sets(self):
return self.num_sets
def size_of_set(self, i):
return self.set_size[self.find_set(i)]
N, M = map(int, input().split())
UF = UnionFind(N)
for i in range(M):
x, y = map(int, input().split())
UF.union_set(x, y)
print(UF.num_disjoint_sets()-1)

Test details

Test 1

Group: 1, 3

Verdict:

input
1000 2000 1
816
1 868
976 995
377 536
...

correct output
4 3 3 4 6 4 -1 4 5 2 2 5 5 3 5...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 2

Group: 1, 3

Verdict:

input
1000 2000 20
578 955 222 813 494 962 753 71...

correct output
5 6 4 3 4 2 -1 3 3 3 4 3 2 3 -...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 3

Group: 1, 3

Verdict:

input
1000 2000 100
945 230 119 680 975 520 490 28...

correct output
2 2 3 -1 2 -1 3 2 2 1 2 -1 3 2...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 4

Group: 1, 3

Verdict:

input
1000 2000 1000
150 443 960 545 218 487 896 38...

correct output
1 -1 1 1 -1 1 1 1 -1 1 1 1 -1 ...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 5

Group: 3

Verdict:

input
100000 200000 1
77222
59470 61811
43092 48939
14395 19964
...

correct output
8 10 8 8 8 8 8 8 9 7 7 8 8 8 6...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 6

Group: 3

Verdict:

input
100000 200000 20
70440 82302 64483 96767 51485 ...

correct output
-1 8 6 5 5 7 6 7 6 6 8 5 6 4 5...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 7

Group: 3

Verdict:

input
100000 200000 100
68738 37820 55519 77758 46482 ...

correct output
4 5 5 5 5 4 6 -1 5 4 5 6 4 5 5...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 8

Group: 3

Verdict:

input
100000 200000 100000
47137 80137 73347 78145 9205 6...

correct output
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 9

Group: 2, 3

Verdict:

input
100000 99999 1
44158
1 2
2 3
3 4
...

correct output
44157 44156 44155 44154 44153 ...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 10

Group: 2, 3

Verdict:

input
100000 99999 20
44158 25720 84658 90057 99607 ...

correct output
361 360 359 358 357 356 355 35...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 11

Group: 2, 3

Verdict:

input
100000 99999 100000
44158 25720 84658 90057 99607 ...

correct output
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 12

Group: 3

Verdict:

input
100000 99999 3
99998 99999 100000
1 2
1 3
1 4
...

correct output
33333 33332 33332 33332 33331 ...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 13

Group: 3

Verdict:

input
100000 99999 300
99701 99702 99703 99704 99705 ...

correct output
333 333 333 333 333 333 333 33...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 14

Group: 3

Verdict:

input
100000 99999 30000
70001 70002 70003 70004 70005 ...

correct output
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 ...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 15

Group: 3

Verdict:

input
100000 0 100000
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 ...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...

Test 16

Group: 3

Verdict:

input
100000 100000 2
1 50001
1 2
2 3
3 4
...

correct output
50000 1 2 3 4 5 6 7 8 9 10 11 ...

user output
(empty)

Error:
Traceback (most recent call last):
  File "/box/input/code.py", line 38, in <module>
    N...