CSES - Datatähti 2023 alku - Results
Submission details
Task:Ruudukko
Sender:erhuht
Submission time:2022-11-07 10:29:15 +0200
Language:Python3 (CPython3)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.02 s1, 2, 3details
#20.02 s1, 2, 3details
#30.02 s1, 2, 3details
#40.97 s2, 3details
#50.97 s2, 3details
#60.97 s2, 3details
#7--3details
#8--3details
#9--3details

Code

import random

class Array:
    def __init__(self, l):
        self.l = l
        self.l_orient = [[sub[x] for sub in self.l] for x in range(len(self.l))]

        

    def index(self, x=None, y=None):
        if x == None and y == None:
            return None
        elif x != None and y != None:
            return self.l[y][x]
        elif x == None:
            return self.l[y]
        elif y == None:
            return self.l_orient[x]
    
    def __str__(self):
        s = ""

        for sub in self.l:
            s += " ".join(map(str, sub)) + "\n"

        return s
    



n = int(input())
m = Array([[random.randint(1, n**2) for __ in range(n)] for _ in range(n)])
visited = {}


def r(m, visited, x, y):
    current = m.index(x, y)
    new = 0

    for axis_x, slice in [(False, m.index(x=x)), (True, m.index(y=y))]:
        for i in range(len(slice)):
            if slice[i] < current:
                new += 1
                if axis_x:
                    if (i, y) in visited:
                        new += visited[(i, y)]
                    else:
                        new += r(m, visited, i, y)
                else:
                    if (x, i) in visited:
                        new += visited[(x, i)]
                    else:
                        new += r(m, visited, x, i)
    
    visited[(x, y)] = new
    return new


count = n**2
for y in range(n):
    for x in range(n):
        count += r(m, visited, x, y)
        
print(count % (10**9+7))

Test details

Test 1

Group: 1, 2, 3

Verdict:

input
3
1 1 1
1 1 1
1 1 1

correct output
9

user output
47

Test 2

Group: 1, 2, 3

Verdict:

input
3
1 2 3
6 5 4
7 8 9

correct output
135

user output
41

Test 3

Group: 1, 2, 3

Verdict:

input
3
7 8 1
4 5 4
3 9 6

correct output
57

user output
52

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
212851609

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
719048446

Test 6

Group: 2, 3

Verdict:

input
100
2995 8734 1018 2513 7971 5063 ...

correct output
964692694

user output
156332546

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)