oj.uz

Submission #684147

# Submission time Handle Problem Language Result Execution time Memory
684147 2023-01-20T14:47:52 Z mychecksedad Chessboard (IZhO18_chessboard) C++17
47 / 100
 322 ms 262144 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
#define pb push_back
#define all(x) x.begin() x.end()
#define MOD (1e9+7)
const int N = 1e6;

int n, k;
vector<vector<bool>> v;
void solve(){
	cin >> n >> k;
	int a = 0;
	for(int i = 1; i <= sqrt(n); ++i){
		if(n % i == 0) a++;
	}
	if(a == 1){
		int c1 = 0, c2 = 0;
		for(int i = 0; i < k; ++i){
			int x1, x2, y1, y2; cin >> x1 >> y1 >> x2 >> y2;
			int val = x1-1+y1-1;
			if(val%2) c1++;
			else c2++;
		}
		cout << min(c1 + ll(n)*n/2 + 1 - c2, c2 + ll(n)*n/2 - c1);
		return;
	}
	v.resize(n);
	for(int i = 0; i < n; ++i) v[i].resize(n);
	for(int i = 0; i < k; ++i){
		int x1, x2, y1, y2; cin >> x1 >> y1 >> x2 >> y2;
		v[x1 - 1][y1 - 1] = 1;
	}
	int ans = MOD;
	for(int i = 1; i < n; ++i){
		if(n % i == 0){
			for(int rep = 0; rep < 2; ++rep){
				int c = 0;
				for(int jx = 0; jx < n; ++jx){
					for(int jy = 0; jy < n; ++jy){
						int val = jx/i + jy/i;
						c += (val%2)^rep^v[jx][jy];
					}
				}
				ans = min(ans, c);
			}

		}
	}
	cout << ans;
}

int main(){
	solve();
	return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 1684 KB Output is correct
2 Correct 16 ms 596 KB Output is correct
3 Correct 43 ms 1104 KB Output is correct
4 Correct 45 ms 1068 KB Output is correct
5 Correct 59 ms 1540 KB Output is correct
6 Correct 34 ms 1100 KB Output is correct
7 Correct 7 ms 340 KB Output is correct
8 Correct 45 ms 1024 KB Output is correct
9 Correct 97 ms 2304 KB Output is correct
10 Correct 57 ms 1416 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 2 ms 212 KB Output is correct
4 Correct 2 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 2 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 2 ms 212 KB Output is correct
4 Correct 2 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 1 ms 296 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 2 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 55 ms 340 KB Output is correct
17 Correct 65 ms 284 KB Output is correct
18 Correct 108 ms 468 KB Output is correct
19 Correct 322 ms 428 KB Output is correct
20 Correct 321 ms 432 KB Output is correct
21 Correct 70 ms 212 KB Output is correct
22 Correct 171 ms 468 KB Output is correct
23 Correct 106 ms 448 KB Output is correct
24 Correct 107 ms 468 KB Output is correct
25 Correct 78 ms 468 KB Output is correct
26 Correct 88 ms 428 KB Output is correct
27 Correct 106 ms 444 KB Output is correct
28 Correct 104 ms 432 KB Output is correct
29 Correct 27 ms 276 KB Output is correct
30 Correct 34 ms 340 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 64 ms 1684 KB Output is correct
2 Correct 16 ms 596 KB Output is correct
3 Correct 43 ms 1104 KB Output is correct
4 Correct 45 ms 1068 KB Output is correct
5 Correct 59 ms 1540 KB Output is correct
6 Correct 34 ms 1100 KB Output is correct
7 Correct 7 ms 340 KB Output is correct
8 Correct 45 ms 1024 KB Output is correct
9 Correct 97 ms 2304 KB Output is correct
10 Correct 57 ms 1416 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 2 ms 212 KB Output is correct
14 Correct 2 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 1 ms 296 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 2 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 55 ms 340 KB Output is correct
27 Correct 65 ms 284 KB Output is correct
28 Correct 108 ms 468 KB Output is correct
29 Correct 322 ms 428 KB Output is correct
30 Correct 321 ms 432 KB Output is correct
31 Correct 70 ms 212 KB Output is correct
32 Correct 171 ms 468 KB Output is correct
33 Correct 106 ms 448 KB Output is correct
34 Correct 107 ms 468 KB Output is correct
35 Correct 78 ms 468 KB Output is correct
36 Correct 88 ms 428 KB Output is correct
37 Correct 106 ms 444 KB Output is correct
38 Correct 104 ms 432 KB Output is correct
39 Correct 27 ms 276 KB Output is correct
40 Correct 34 ms 340 KB Output is correct
41 Runtime error 115 ms 262144 KB Execution killed with signal 9
42 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 64 ms 1684 KB Output is correct
10 Correct 16 ms 596 KB Output is correct
11 Correct 43 ms 1104 KB Output is correct
12 Correct 45 ms 1068 KB Output is correct
13 Correct 59 ms 1540 KB Output is correct
14 Correct 34 ms 1100 KB Output is correct
15 Correct 7 ms 340 KB Output is correct
16 Correct 45 ms 1024 KB Output is correct
17 Correct 97 ms 2304 KB Output is correct
18 Correct 57 ms 1416 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 2 ms 212 KB Output is correct
22 Correct 2 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 212 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct
29 Correct 1 ms 296 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 2 ms 212 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 212 KB Output is correct
34 Correct 55 ms 340 KB Output is correct
35 Correct 65 ms 284 KB Output is correct
36 Correct 108 ms 468 KB Output is correct
37 Correct 322 ms 428 KB Output is correct
38 Correct 321 ms 432 KB Output is correct
39 Correct 70 ms 212 KB Output is correct
40 Correct 171 ms 468 KB Output is correct
41 Correct 106 ms 448 KB Output is correct
42 Correct 107 ms 468 KB Output is correct
43 Correct 78 ms 468 KB Output is correct
44 Correct 88 ms 428 KB Output is correct
45 Correct 106 ms 444 KB Output is correct
46 Correct 104 ms 432 KB Output is correct
47 Correct 27 ms 276 KB Output is correct
48 Correct 34 ms 340 KB Output is correct
49 Runtime error 115 ms 262144 KB Execution killed with signal 9
50 Halted 0 ms 0 KB -