CSES - Datatähti 2022 alku - Results
Submission details
Task:Spiraali (Spiral)
Sender:jmarttinen
Submission time:2021-10-04 20:19:29
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 <string> 
#include <vector>

using namespace std;


int main() {
    long long n, t;

    cin >> n >> t;

    long long x, y, k, p;
    for (int i=0; i<t; i++) {
        cin >> y >> x;
        // the 'shell' on which the point lies
        k = min(min(x,n+1-x), min(y,n+1-y));

        p = 1 + 4 * (k - 1) * (n + 1 - k)
            + ((y == k && x != k) ? 2*(n-2*k+1) - (x - k): x - k)
            + ((x == n+1-k || (y==k && x != k)) ? 2*(n-2*k+1) - (y - k) : y - k);
        cout << p << "\n";
        
    }


}

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
...