CSES - Datatähti 2023 alku - Results
Submission details
Task:Ruudukko
Sender:hoodarm
Submission time:2022-11-08 17:57:57 +0200
Language:Python3 (CPython3)
Status:READY
Result:28
Feedback
groupverdictscore
#1ACCEPTED28
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.02 s1, 2, 3details
#2ACCEPTED0.03 s1, 2, 3details
#3ACCEPTED0.02 s1, 2, 3details
#4--2, 3details
#5--2, 3details
#6--2, 3details
#7--3details
#8--3details
#9--3details

Code

from collections import defaultdict
# modified BFS
def find_all_parents(G, s):
Q = [s]
parents = defaultdict(set)
while len(Q) != 0:
v = Q[0]
Q.pop(0)
for w in G.get(v, []):
parents[w].add(v)
Q.append(w)
return parents
# recursive path-finding function (assumes that there exists a path in G from a to b)
def find_all_paths(parents, a, b):
return [a] if a == b else [y + b for x in list(parents[b]) for y in find_all_paths(parents, a, x)]
# G = {'A':['B','C'], 'B':['D'], 'C':['D', 'F'], 'D':['E', 'F'], 'E':['F']}
# some = find_all_paths(find_all_parents(G, 'B'), 'B', 'F')
# print(len(some))
Graph = {}
noOfVertices = int(input())
counter = 1
index = 0
Grid={}
while (counter<=noOfVertices):
rowNo = counter
numbers = list(map(int, input().split()))
coloumnNo = 1
for coloumnNo in range(1,noOfVertices+1):
Grid[index] = [numbers[coloumnNo-1],(rowNo,coloumnNo)]
index=index+1
counter=counter+1
for index,value in Grid.items():
Graph[index] = []
for index2,otherValue in Grid.items():
if ((value[1][0]==otherValue[1][0] or value[1][1]==otherValue[1][1]) and otherValue[0]<value[0]):
Graph[index].append(index2)
noOfPaths = 0
for i in range(0,noOfVertices*noOfVertices):
for i2 in range (0, noOfVertices*noOfVertices):
some = find_all_paths(find_all_parents(Graph, i), i, i2)
noOfPaths = noOfPaths + len(some)
print(noOfPaths%(10000000007))

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
1 1 1
1 1 1
1 1 1

correct output
9

user output
9

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
1 2 3
6 5 4
7 8 9

correct output
135

user output
135

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
3
7 8 1
4 5 4
3 9 6

correct output
57

user output
57

Test 4

Group: 2, 3

Verdict:

input
100
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
10000

user output
(empty)

Test 5

Group: 2, 3

Verdict:

input
100
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
187458477

user output
(empty)

Test 6

Group: 2, 3

Verdict:

input
100
2995 8734 1018 2513 7971 5063 ...

correct output
964692694

user output
(empty)

Test 7

Group: 3

Verdict:

input
1000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
1000000

user output
(empty)

Test 8

Group: 3

Verdict:

input
1000
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
229147081

user output
(empty)

Test 9

Group: 3

Verdict:

input
1000
520283 805991 492643 75254 527...

correct output
951147313

user output
(empty)