CSES - Datatähti 2022 alku - Results
 Task: Spiraali (Spiral) Sender: ileska Submission time: 2021-10-08 09:44:26 Language: C++11 Status: READY Result: 100
Feedback
groupverdictscore
#1ACCEPTED15
#2ACCEPTED20
#3ACCEPTED65
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1details
#2ACCEPTED0.01 s2details
#3ACCEPTED0.01 s3details

### Code

```#include <iostream>
#include <math.h>
using namespace std;
int main()
{
long long n, t, y, x;
cin >> n >> t;

if (n % 2 == 1)
{
return 1;
}

for (int i = 0; i < t; i++)
{
cin >> y >> x;
if (abs(n / 2 - y) >= abs(n / 2 - x))
{
if (y > (n / 2))
{
//toimii ÁLÄ KOSKE
if (y == n - x)
{
cout << 4 * (x - 1) * (n - x + 1) + (y - x + 1) << endl;
}
else
{
cout << 4 * n * y - n - 4 * y * y + 2 * y + x - (n - y) - 1 << endl;
}
}
else
{
//toimii ehkä kokeile
if (x == y)
{
cout << 4 * (x - 1) * (n - x + 1) + (y - x + 1) << endl;
}
else
{
cout << 4 * (y - 1) * (n - y + 1) + 2 * (n - (2 * (y - 1))) - 1 + n - 2 * (y - 1) - 1 + (n - x - (y - 1)) << endl;
}
}
}
else
{
if (x > (n / 2))
{
//toimii ÁLÄ KOSKE
cout << 4 * x * (n - x) - 2 * n + 4 * x - 1 + (n - y - (n - x)) << endl;
}
else
{
//toimii ÁLÄ KOSKE
cout << 4 * (x - 1) * (n - x + 1) + (y - x + 1) << endl;
}
}
}
return 0;
}
```

### 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
...