CSES - Datatähti 2023 alku - Results
Submission details
Task:Ruudukko
Sender:tassu
Submission time:2022-11-04 16:28:16 +0200
Language:Python3 (CPython3)
Status:READY
Result:61
Feedback
groupverdictscore
#1ACCEPTED28
#2ACCEPTED33
#30
Test results
testverdicttimegroup
#1ACCEPTED0.02 s1, 2, 3details
#2ACCEPTED0.02 s1, 2, 3details
#3ACCEPTED0.02 s1, 2, 3details
#4ACCEPTED0.03 s2, 3details
#5ACCEPTED0.93 s2, 3details
#6ACCEPTED0.43 s2, 3details
#7--3details
#8--3details
#9--3details

Code

total = 0

by_number = {}

by_row = {}
by_column = {}

size = int(input())

for y in range(size):
	# it's a square, we can do this
	by_row[y] = 0
	by_column[y] = 0

	data = input().split(" ")
	for x in range(size):
		num = data[x]

		if num not in by_number:
			by_number[num] = set()

		by_number[num].add((x, y))

for num in range(1, size**2 + 1):
	if str(num) not in by_number:
		continue

	found_for_rows = {}
	found_for_columns = {}

	for i in range(size):
		found_for_rows[i] = 0
		found_for_columns[i] = 0

	for x, y in by_number[str(num)]:
		for_current = 1 + by_row[y] + by_column[x]

		found_for_rows[y] += for_current
		found_for_columns[x] += for_current

		total += for_current

		#print(num, x, y, for_current)
	
	for key, value in found_for_rows.items():
		by_row[key] += value
	for key, value in found_for_columns.items():
		by_column[key] += value

#print(found)

print(total % (10**9 + 7))

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: ACCEPTED

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

correct output
10000

user output
10000

Test 5

Group: 2, 3

Verdict: ACCEPTED

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

correct output
187458477

user output
187458477

Test 6

Group: 2, 3

Verdict: ACCEPTED

input
100
2995 8734 1018 2513 7971 5063 ...

correct output
964692694

user output
964692694

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)