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Submission #907415

# Submission time Handle Problem Language Result Execution time Memory
907415 2024-01-15T13:56:55 Z daoquanglinh2007 Chessboard (IZhO18_chessboard) C++17
70 / 100
 159 ms 4388 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long

const int NM = 1e5, inf = 1e18;

int N, K, x[NM+5], y[NM+5], ans = +inf;
int num[2];

void solve(int t){
	num[0] = num[1] = 0;
	for (int i = 1; i <= K; i++){
		int blx = x[i]/t+(x[i]%t > 0), bly = y[i]/t+(y[i]%t > 0);
		num[(blx+bly)%2]++;
	}
	int targ = t*t*(N*N/(t*t)/2);
	ans = min(ans, abs(targ-num[1])+num[0]);
	ans = min(ans, abs(N*N-targ-num[0])+num[1]);
}

signed main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	
	cin >> N >> K;
	for (int i = 1; i <= K; i++){
		cin >> x[i] >> y[i] >> x[i] >> y[i];
	}
	for (int i = 1; i*i <= N; i++)
		if (N%i == 0){
			solve(i);
			if (i > 1) solve(N/i);
		}
	cout << ans;
	return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 1368 KB Output is correct
2 Correct 5 ms 856 KB Output is correct
3 Correct 11 ms 1884 KB Output is correct
4 Correct 12 ms 1948 KB Output is correct
5 Correct 14 ms 2396 KB Output is correct
6 Correct 9 ms 1628 KB Output is correct
7 Correct 3 ms 604 KB Output is correct
8 Correct 9 ms 1628 KB Output is correct
9 Correct 23 ms 3920 KB Output is correct
10 Correct 14 ms 2396 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 600 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 600 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 7 ms 1116 KB Output is correct
17 Correct 18 ms 3028 KB Output is correct
18 Correct 25 ms 3708 KB Output is correct
19 Correct 41 ms 3164 KB Output is correct
20 Correct 47 ms 3588 KB Output is correct
21 Correct 19 ms 2812 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 12 ms 1712 KB Output is correct
24 Correct 22 ms 3164 KB Output is correct
25 Correct 3 ms 600 KB Output is correct
26 Correct 13 ms 2128 KB Output is correct
27 Correct 20 ms 2556 KB Output is correct
28 Correct 22 ms 3412 KB Output is correct
29 Correct 8 ms 1368 KB Output is correct
30 Correct 1 ms 348 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 1368 KB Output is correct
2 Correct 5 ms 856 KB Output is correct
3 Correct 11 ms 1884 KB Output is correct
4 Correct 12 ms 1948 KB Output is correct
5 Correct 14 ms 2396 KB Output is correct
6 Correct 9 ms 1628 KB Output is correct
7 Correct 3 ms 604 KB Output is correct
8 Correct 9 ms 1628 KB Output is correct
9 Correct 23 ms 3920 KB Output is correct
10 Correct 14 ms 2396 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 600 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 344 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 7 ms 1116 KB Output is correct
27 Correct 18 ms 3028 KB Output is correct
28 Correct 25 ms 3708 KB Output is correct
29 Correct 41 ms 3164 KB Output is correct
30 Correct 47 ms 3588 KB Output is correct
31 Correct 19 ms 2812 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 12 ms 1712 KB Output is correct
34 Correct 22 ms 3164 KB Output is correct
35 Correct 3 ms 600 KB Output is correct
36 Correct 13 ms 2128 KB Output is correct
37 Correct 20 ms 2556 KB Output is correct
38 Correct 22 ms 3412 KB Output is correct
39 Correct 8 ms 1368 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 40 ms 3668 KB Output is correct
42 Correct 25 ms 3932 KB Output is correct
43 Correct 30 ms 3668 KB Output is correct
44 Correct 26 ms 3928 KB Output is correct
45 Correct 32 ms 4176 KB Output is correct
46 Correct 45 ms 3920 KB Output is correct
47 Correct 23 ms 3664 KB Output is correct
48 Correct 27 ms 3664 KB Output is correct
49 Correct 23 ms 3772 KB Output is correct
50 Correct 144 ms 4032 KB Output is correct
51 Correct 151 ms 4272 KB Output is correct
52 Correct 144 ms 4000 KB Output is correct
53 Correct 155 ms 4240 KB Output is correct
54 Correct 141 ms 3916 KB Output is correct
55 Correct 159 ms 4388 KB Output is correct
56 Correct 136 ms 3852 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 15 ms 1368 KB Output is correct
10 Correct 5 ms 856 KB Output is correct
11 Correct 11 ms 1884 KB Output is correct
12 Correct 12 ms 1948 KB Output is correct
13 Correct 14 ms 2396 KB Output is correct
14 Correct 9 ms 1628 KB Output is correct
15 Correct 3 ms 604 KB Output is correct
16 Correct 9 ms 1628 KB Output is correct
17 Correct 23 ms 3920 KB Output is correct
18 Correct 14 ms 2396 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 1 ms 600 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 344 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 1 ms 348 KB Output is correct
34 Correct 7 ms 1116 KB Output is correct
35 Correct 18 ms 3028 KB Output is correct
36 Correct 25 ms 3708 KB Output is correct
37 Correct 41 ms 3164 KB Output is correct
38 Correct 47 ms 3588 KB Output is correct
39 Correct 19 ms 2812 KB Output is correct
40 Correct 1 ms 348 KB Output is correct
41 Correct 12 ms 1712 KB Output is correct
42 Correct 22 ms 3164 KB Output is correct
43 Correct 3 ms 600 KB Output is correct
44 Correct 13 ms 2128 KB Output is correct
45 Correct 20 ms 2556 KB Output is correct
46 Correct 22 ms 3412 KB Output is correct
47 Correct 8 ms 1368 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 40 ms 3668 KB Output is correct
50 Correct 25 ms 3932 KB Output is correct
51 Correct 30 ms 3668 KB Output is correct
52 Correct 26 ms 3928 KB Output is correct
53 Correct 32 ms 4176 KB Output is correct
54 Correct 45 ms 3920 KB Output is correct
55 Correct 23 ms 3664 KB Output is correct
56 Correct 27 ms 3664 KB Output is correct
57 Correct 23 ms 3772 KB Output is correct
58 Correct 144 ms 4032 KB Output is correct
59 Correct 151 ms 4272 KB Output is correct
60 Correct 144 ms 4000 KB Output is correct
61 Correct 155 ms 4240 KB Output is correct
62 Correct 141 ms 3916 KB Output is correct
63 Correct 159 ms 4388 KB Output is correct
64 Correct 136 ms 3852 KB Output is correct
65 Correct 1 ms 348 KB Output is correct
66 Incorrect 0 ms 348 KB Output isn't correct
67 Halted 0 ms 0 KB -