CSES - DatatÃ¤hti 2022 alku - Results
 Task: Spiraali (Spiral) Sender: Anniiiz Submission time: 2021-10-04 10:38:37 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 <vector>
#include <algorithm>
using namespace std;
using ll = long long;

int main() {
ll n, t, x, y;
cin >> n >> t;
ll e = 4*n-6;
for (int i = 0; i < t; i++) {
ll v;
cin >> x >> y;
if (x < y) {
if (x <= n-y) {
ll dist = n - x;
ll diag = dist*(e+(dist-1)*(-8)+e)/2+n;
v = diag + n-x+1-y;
}
else {
ll dist = y -1;
ll diag = dist*(e+(dist-1)*(-8)+e)/2+n;
v = diag - (x - (n-y+1));
}
}
else {
if (x <= n-y) {
ll dist = y - 1;
ll diag = dist*(e+(dist-1)*(-8)+e)/2+n;
v = diag - (n-y+1-x);
}
else {
ll dist = n -x;
ll diag = dist*(e+(dist-1)*(-8)+e)/2+n;
v = diag + y-(n-x+1);
}
}
cout << v << endl;
}
}
```

### 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
...