CSES - Datatähti 2022 alku - Results
 Task: Spiraali (Spiral) Sender: Jellu Submission time: 2021-10-09 13:26:46 Language: CPython3 Status: READY Result: 100
Feedback
groupverdictscore
#1ACCEPTED15
#2ACCEPTED20
#3ACCEPTED65
Test results
testverdicttimegroup
#1ACCEPTED0.03 s1details
#2ACCEPTED0.03 s2details
#3ACCEPTED0.03 s3details

### Code

```n,t = [int(x) for x in input().split()]
sijainnit = []
for i in range(t):
y, x = [int(x) for x in input().split()]
sijainnit.append((y,x))
for y,x in sijainnit:
#Alaspäin
if x <= n // 2 and (x - 1) <= y < (n - x + 1):
m = (x-1) * 4 + 1
x1 = m // 4 + 1
if m == 1:
y1 = 1
else:
y1 = m // 4
if m == 1:
z1 = 1
else:
z1 = (m - 1 ) * n - (1 + 2 * (((m // 2 - 1) * (1 + (m // 2 - 1)) // 2)) + (m//2)) + 1
z = z1 + (y - y1)
#Ylöspäin
elif x >= n // 2 and (n - x + 1) < y <= (x):
m = 2 + (n-x) * 4 + 1
x1 = n - m // 4
y1 = n - m // 4
z1 = (m - 1 ) * n - (1 + 2 * (((m // 2 - 1) * (1 + (m // 2 - 1)) // 2)) + (m//2)) + 1
z = z1 + (y1 - y)
#Vasemmalle
elif y <= n // 2 and (y) < x <= (n - y + 1):
m = 3 + (y-1) * 4 + 1
y1 = m // 4
x1 = n - m // 4 + 1
z1 = (m - 1 ) * n - (1 + 2 * (((m // 2 - 1) * (1 + (m // 2 - 1)) // 2))) + 1
z = z1 + (x1 - x)
#Oikealle
elif y >= n // 2 and (n - y + 1) <= x < y:
m = 1 + (n-y) * 4 + 1
y1 = n - m // 4
x1 = m // 4 + 1
z1 = (m - 1 ) * n - (1 + 2 * (((m // 2 - 1) * (1 + (m // 2 - 1)) // 2))) + 1
z = z1 + (x - x1)
print(z)```

### 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: ACCEPTED

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

correct output
571375684522141210
967321186816598569
762879105851175000
370065046779516790
936897883750373771
...

user output
571375684522141210
967321186816598569
762879105851175000
370065046779516790
936897883750373771
...