CSES - Datatähti 2022 alku - Results
Submission details
Task:Spiraali (Spiral)
Sender:OivaPeltola
Submission time:2021-10-14 00:38:19
Language:PyPy3
Status:READY
Result:35
Feedback
groupverdictscore
#1ACCEPTED15
#2ACCEPTED20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.04 s1details
#2ACCEPTED0.10 s2details
#30.09 s3details

Code

n, t = [int(x) for x in input().split()]
#t = int(input())
y = []
x = []
def spiral_matrix(n):
    m = [[0] * n for i in range(n)]
    dx = [1, 0, -1, 0]
    dy = [0, 1, 0, -1]
    x, y, c = -1, 0, 1
    for i in range(n + n - 1):
        for j in range((n + n - i) // 2):
            x += dx[i % 4]
            y += dy[i % 4]
            m[x][y] = c
            c += 1
    return m

for i in range(t):    
    x1,y1 = [int(x) for x in input().split()]
    x.append(y1)
    y.append(x1)
a=[]
for i in spiral_matrix(n): a.append(i)
for j in range(t): print(a[y[j]-1][x[j]-1])

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
10 100
1 1
1 2
1 3
1 4
...

correct output
1
36
35
34
33
...

user output
1
36
35
34
33
...

Test 2

Group: 2

Verdict: ACCEPTED

input
1000 1000
371 263
915 322
946 880
53 738
...

correct output
773533
312166
206053
200080
593922
...

user output
773533
312166
206053
200080
593922
...

Test 3

Group: 3

Verdict:

input
1000000000 1000
177757853 827347032
409613589 419171337
739269360 256524697
328695530 896842209
...

correct output
571375684522141210
967321186816598569
762879105851175000
370065046779516790
936897883750373771
...

user output
(empty)

Error:
Traceback (most recent call last):
  File "input/code.py", line 23, in <module>
    for i in spiral_matrix(n): a.append(i)
  File "input/code.py", line 6, in spiral_matrix
    m = [[0] * n for i in range(n)]
  File "input/code.py", line 6, in <listcomp>
    m = [[0] * n for i in range(n)]
MemoryError