CSES - DatatÃ¤hti 2022 alku - Results
 Task: Spiraali (Spiral) Sender: WalkStalker Submission time: 2021-10-15 02:45:00 Language: CPython3 Status: READY Result: 15
Feedback
groupverdictscore
#1ACCEPTED15
#20
#30
Test results
testverdicttimegroup
#1ACCEPTED0.02 s1details
#2--2details
#30.02 s3details

### Code

```n, t = map(int, input().split())
a = [[1] * n for c in range(n)]
i = 0
j = 0
direction = 0
proh = {(n, 0), (n-1, n), (-1, n-1), (0, 0)}
for c in range(2, n**2 + 1):
if direction == 0:
i += 1
if (i, j) in proh:
direction = (direction + 1) % 4
i -= 1
j += 1
a[i][j] = c
continue
else:
a[i][j] = c
if direction == 1:
j += 1
if (i, j) in proh:
direction = (direction + 1) % 4
j -= 1
i -= 1
a[i][j] = c
continue
else:
a[i][j] = c
if direction == 2:
i -= 1
if (i, j) in proh:
direction = (direction + 1) % 4
i += 1
j -= 1
a[i][j] = c
continue
else:
a[i][j] = c
if direction == 3:
j -= 1
if (i, j) in proh:
direction = (direction + 1) % 4
j += 1
i += 1
a[i][j] = c
continue
else:
a[i][j] = c
for c in range(t):
i, j = map(int, input().split())
print(a[i-1][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
...

Group: 2

Verdict:

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

correct output
773533
312166
206053
200080
593922
...

user output
(empty)

#### 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 2, in <module>
a = [[1] * n for c in range(n)]
File "input/code.py", line 2, in <listcomp>
a = [[1] * n for c in range(n)]
MemoryError```