#include <bits/stdc++.h>
using namespace std;
/*************************************
*
* Subtask 1 : 8 points
* Subtask 2 : 8 points
*
*/
signed main()
{
int n, m, k;
vector<int> v;
cin >> n >> k;
if (k == 0) // Subtask 1
{
m = n;
for (int i : {3, 5, 7, 11, 13, 17, 19, 23, 27, 29, 31, 37, 41, 43, 47, 53, 57, 61, 67, 71, 73, 79, 83, 89, 97})
while (m % i == 0)
v.emplace_back(i), m /= i;
if (m > 1)
v.emplace_back(m);
if (n == (n & -n))
cout << n * n / 2 << '\n';
else
cout << (n * n - (n / v[0]) * (n / v[0])) / 2;
}
else // Subtask 2
{
int l = 0, r = 0;
for (int i = 1; i <= k; i++)
{
int x1, y1, x2, y2;
cin >> x1 >> y1 >> x2 >> y2;
if ((x1 + y1) % 2)
l++;
else
r++;
}
cout << min((n * n + 1) / 2 - l + r, (n * n) / 2 - r + l) << '\n';
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
0 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
74 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
1 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
74 ms |
364 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
0 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
1 ms |
364 KB |
Output is correct |
5 |
Correct |
1 ms |
364 KB |
Output is correct |
6 |
Correct |
0 ms |
364 KB |
Output is correct |
7 |
Correct |
1 ms |
364 KB |
Output is correct |
8 |
Correct |
1 ms |
364 KB |
Output is correct |
9 |
Incorrect |
74 ms |
364 KB |
Output isn't correct |
10 |
Halted |
0 ms |
0 KB |
- |