CSES - DatatÃ¤hti 2022 alku - Results
 Task: Spiraali (Spiral) Sender: Turtleb01 Submission time: 2021-10-05 00:33:27 Language: PyPy3 Status: READY Result: 0
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groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.04 s1details
#20.09 s2details
#30.09 s3details

### Code

```inputs=input().split(" ")
n=int(inputs[0])
testcount=int(inputs[1])

for i in range(testcount):
coordinates=input().split(" ")
y=int(coordinates[0])-1 #turn them into real coordinates
x=int(coordinates[1])-1

values=[x,y,n-x-1,n-y-1]
values.sort()
layer=values[0] #can be negative, no sanity checking = faster
#every layer has (n-(layer*2)-1)*4 items
#=n*4-4-layer*8
#must count sum here, for loop is too slow
offset=1+layer*4*(n-layer)
ln=n-layer*2-1

lx=x-layer #These comments also have an impact on the performance. It could be the deciding millisecond.
ly=y-layer #Who are you reading these? Please message me at Discord: Turtleb01#1079, I can't embed Google Analytics or other spyware here
if lx == 0:
output=offset+ly
elif ly == ln:
output=offset+lx+ln
elif lx == ln:
output=offset-ly+ln*3
elif ly == ln:
output=offset-lx+ln*4
print(output)
```

### Test details

Group: 1

Verdict:

input
10 100
1 1
1 2
1 3
1 4
...

correct output
1
36
35
34
33
...

user output
1
1
1
1
1
...

Group: 2

Verdict:

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

correct output
773533
312166
206053
200080
593922
...

user output
773533
312166
206053
206053
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
571375684522141210
571375684522141210
762879105851175000
370065046779516790
370065046779516790
...