CSES - Datatähti 2022 alku - Results
Submission details
Task:Spiraali
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
...