CSES - Datatähti 2022 alku - Results
Submission details
Task:Spiraali (Spiral)
Sender:ileska
Submission time:2021-10-08 09:17:17
Language:C++11
Status:READY
Result:85
Feedback
groupverdictscore
#10
#2ACCEPTED20
#3ACCEPTED65
Test results
testverdicttimegroup
#10.01 s1details
#2ACCEPTED0.01 s2details
#3ACCEPTED0.01 s3details

Code

#include <iostream>
#include <math.h>
using namespace std;
//4 * k * n - 4 * k * k
int main()
{
	long long n, t, y, x;
	//	cin >> n >> t >> y >> x;
	cin >> n >> t;

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

	for (int i = 0; i < t; i++)
	{
		//	cout << "x: " << x << " y: " << y << endl;
		cin >> y >> x;
		if (abs(n / 2 - y) > abs(n / 2 - x))
		{
			if (y > (n / 2))
			{
				//toimii ÁLÄ KOSKE
				// cout << 4 * y * (n - y) << "kierroksen alku: " << 4 * (n - y) * n - 4 * (n - y) * (n - y) << endl;
				cout << 4 * n * y - n - 4 * y * y + 2 * y + x - (n - y) - 1 << endl;
				//cout << "kierroksii1: " << n - y << endl;
			}
			else
			{
				//toimii ehkä kokeile
				//cout << 4 * (y - 1) * (n - y + 1) << "kierroksen alku: " << 4 * (y - 1) * n - 4 * (y - 1) * (y - 1) << endl;
				cout << 4 * (y - 1) * (n - y + 1) + 2 * (n - (2 * (y - 1))) - 1 + n - 2 * (y - 1) - 1 + (n - x - (y - 1)) << endl;
				//cout << "kierroksii2: " << y - 1 << endl;
			}
		}
		else
		{
			if (x > (n / 2))
			{
				//toimii ÁLÄ KOSKE
				//cout << 4 * x * (n - x) << "kierroksen alku: " << 4 * (n - x) * n - 4 * (n - x) * (n - x) << endl;
				cout << 4 * x * (n - x) - 2 * n + 4 * x - 1 + (n - y - (n - x)) << endl;
				//cout << "kierroksii3: " << n - x << endl;
			}
			else
			{
				//toimii ÁLÄ KOSKE
				//cout << 4 * (x - 1) * (n - x + 1) << "kierroksen alku: " << 4 * (x - 1) * n - 4 * (x - 1) * (x - 1) << endl;
				cout << 4 * (x - 1) * (n - x + 1) + (y - x + 1) << endl; // y=4 x=3
																		 //cout << "kierroksii4: " << x - 1 << endl;
			}
		}
	}
	return 0;
}

Test details

Test 1

Group: 1

Verdict:

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
...