oj.uz

Submission #488257

# Submission time Handle Problem Language Result Execution time Memory
488257 2021-11-18T10:47:26 Z levsog2004 Chessboard (IZhO18_chessboard) C++14
39 / 100
 38 ms 12048 KB 
#include <iostream>
#include <iomanip>
#include <fstream>
#include <algorithm>
#include <cstring>
#include <string>
#include <vector>
#include <queue>
#include <deque>
#include <stack>
#include <cmath>
#include <list>
#include <set>
#include <map>
using namespace std;
typedef  int  ll;
#define all(x) x.begin(),x.end()
#define al(a,n)  (a,a+n)
#define se second
#define fr first
#define m_p make_pair
const ll N = 1005;
const ll mod = 1000 * 1000 * 1000 + 7;
const ll inf = 1000000009;
ll n, m, k, z, t, x, y, ans, pat,a[N][N];
pair<ll, ll> p[N][N];
int main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin >> n >> m;
	for (int i = 0; i < m; ++i)
	{
		cin >> x >> y >> x >> y;
		a[x][y] = 1;
	}
	for (int i = 1; i <= n; ++i)
	{
		for (int j = 1; j <= n; ++j)
		{
			if (a[i][j] == 1)
			{
				p[i][j].first = p[i][j - 1].first + p[i - 1][j].first - p[i - 1][j - 1].first+1;
				p[i][j].second = p[i][j - 1].second + p[i - 1][j].second - p[i - 1][j - 1].second;

			}
			else
			{
				p[i][j].second = p[i][j - 1].second + p[i - 1][j].second - p[i - 1][j - 1].second + 1;
					p[i][j].first = p[i][j - 1].first + p[i - 1][j].first - p[i - 1][j - 1].first;
			}

		}
	}
	ans = inf;
	for (int ii = 1; ii < n; ++ii)
	{
		x = 0;
		y = 0;
		if (n % ii == 0)
		{
			for (int i = ii; i <= n; i += ii)
			{
				for (int j = ii; j <= n; j += ii)
				{
					if ((i / ii + j / ii) % 2 == 0)
					{
						x += p[i][j].second + p[i - ii][j - ii].second - p[i][j - ii].second - p[i - ii][j].second;
						y += p[i][j].first + p[i - ii][j - ii].first - p[i][j - ii].first - p[i - ii][j].first;
					}
					else
					{
						x += p[i][j].first + p[i - ii][j - ii].first - p[i][j - ii].first - p[i - ii][j].first;
						y += p[i][j].second + p[i - ii][j - ii].second - p[i][j - ii].second - p[i - ii][j].second;
					}
				}
			}
			ans = min(ans, min(x, y));
		}
	}
	cout << ans << endl;
	return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 716 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Correct 1 ms 716 KB Output is correct
5 Correct 1 ms 716 KB Output is correct
6 Correct 1 ms 716 KB Output is correct
7 Correct 1 ms 716 KB Output is correct
8 Correct 1 ms 716 KB Output is correct

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 0 ms 716 KB Output is correct
3 Correct 1 ms 844 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 844 KB Output is correct
9 Correct 1 ms 1100 KB Output is correct
10 Correct 1 ms 844 KB Output is correct
11 Correct 1 ms 844 KB Output is correct
12 Correct 1 ms 716 KB Output is correct
13 Correct 1 ms 844 KB Output is correct
14 Correct 1 ms 972 KB Output is correct
15 Correct 1 ms 716 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 972 KB Output is correct
2 Correct 0 ms 716 KB Output is correct
3 Correct 1 ms 844 KB Output is correct
4 Correct 1 ms 972 KB Output is correct
5 Correct 1 ms 972 KB Output is correct
6 Correct 1 ms 972 KB Output is correct
7 Correct 1 ms 972 KB Output is correct
8 Correct 1 ms 844 KB Output is correct
9 Correct 1 ms 1100 KB Output is correct
10 Correct 1 ms 844 KB Output is correct
11 Correct 1 ms 844 KB Output is correct
12 Correct 1 ms 716 KB Output is correct
13 Correct 1 ms 844 KB Output is correct
14 Correct 1 ms 972 KB Output is correct
15 Correct 1 ms 716 KB Output is correct
16 Correct 20 ms 11488 KB Output is correct
17 Correct 37 ms 12048 KB Output is correct
18 Correct 37 ms 12040 KB Output is correct
19 Correct 37 ms 11644 KB Output is correct
20 Correct 38 ms 11596 KB Output is correct
21 Correct 37 ms 11992 KB Output is correct
22 Correct 16 ms 9548 KB Output is correct
23 Correct 26 ms 11724 KB Output is correct
24 Correct 37 ms 12040 KB Output is correct
25 Correct 17 ms 11724 KB Output is correct
26 Correct 27 ms 11504 KB Output is correct
27 Correct 33 ms 11664 KB Output is correct
28 Correct 36 ms 11524 KB Output is correct
29 Correct 22 ms 11724 KB Output is correct
30 Correct 16 ms 11604 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Runtime error 1 ms 460 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 716 KB Output is correct
3 Correct 1 ms 716 KB Output is correct
4 Correct 1 ms 716 KB Output is correct
5 Correct 1 ms 716 KB Output is correct
6 Correct 1 ms 716 KB Output is correct
7 Correct 1 ms 716 KB Output is correct
8 Correct 1 ms 716 KB Output is correct
9 Runtime error 1 ms 460 KB Execution killed with signal 11
10 Halted 0 ms 0 KB -