CSES - Datatähti 2022 alku - Results
Submission details
Task:Spiraali (Spiral)
Sender:Anttono
Submission time:2021-10-04 10:27:20
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 <bits/stdc++.h>

using namespace std;

typedef long long int ll;

ll n,t;

int main()
{
    cin>>n>>t;
    ll y,x;
    for(int i=0;i<t;i++)
    {
        cin>>y>>x;
        ll round = min(min(x, n-x+1),min(y, n-y+1))-1;
        ll start = n*n - (n-round*2)*(n-round*2) + 1;
        ll progress = 0;
        if(x>round+1)
        {
            progress += n-round*2-1;
            if(y<n-round)
            {
                progress += n-round*2-1;
                if(x<n-round)
                {
                    progress += n-round*2-1;
                    progress += n-round-x;
                }
                else
                {
                    progress += n-round-y;
                }
            }
            else
            {
                progress += x-(round+1);
            }
        }
        else
        {
            progress += y-(round+1);
        }
        cout<<start+progress<<'\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
...