oj.uz

Submission #684169

# Submission time Handle Problem Language Result Execution time Memory
684169 2023-01-20T15:07:32 Z mychecksedad Chessboard (IZhO18_chessboard) C++17
70 / 100
 410 ms 3564 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;

ll n, k, ans = 1e18;
vector<pair<int, int>> v;
void solve(){
	cin >> n >> k;
	int a = 0;
	for(int i = 0; i < k; ++i){
		int x1, x2, y1, y2; cin >> x1 >> y1 >> x2 >> y2;
		v.pb({x1-1,y1-1});
	}
	for(ll i = 1; i < n; ++i){
		if(n % i == 0){
			for(int rep = 0; rep < 2; ++rep){
				int c = 0;
				for(int j = 0; j < k; ++j){
					bool type = (v[j].first / i + v[j].second / i) % 2;
					if((type ^ rep) == 0) c--;
					else c++;
				}
				ans = min(ans, c + (rep ? (n/i)*(n/i)/2*i*i : ((n/i)*(n/i) + 1)/2*i*i));
			}

		}
	}
	cout << ans;
}

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

Compilation message

chessboard.cpp: In function 'void solve()':
chessboard.cpp:13:6: warning: unused variable 'a' [-Wunused-variable]
   13 |  int a = 0;
      |      ^

Subtask #1
8.0 / 8.0

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

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 876 KB Output is correct
2 Correct 17 ms 596 KB Output is correct
3 Correct 45 ms 924 KB Output is correct
4 Correct 41 ms 840 KB Output is correct
5 Correct 57 ms 832 KB Output is correct
6 Correct 37 ms 848 KB Output is correct
7 Correct 8 ms 340 KB Output is correct
8 Correct 37 ms 840 KB Output is correct
9 Correct 90 ms 1408 KB Output is correct
10 Correct 57 ms 848 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 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 2 ms 316 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 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 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 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 2 ms 316 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 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 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 24 ms 596 KB Output is correct
17 Correct 68 ms 1344 KB Output is correct
18 Correct 87 ms 1388 KB Output is correct
19 Correct 128 ms 1340 KB Output is correct
20 Correct 130 ms 1348 KB Output is correct
21 Correct 66 ms 1348 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 43 ms 920 KB Output is correct
24 Correct 78 ms 1392 KB Output is correct
25 Correct 8 ms 416 KB Output is correct
26 Correct 52 ms 844 KB Output is correct
27 Correct 61 ms 1352 KB Output is correct
28 Correct 82 ms 1352 KB Output is correct
29 Correct 28 ms 840 KB Output is correct
30 Correct 3 ms 340 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 876 KB Output is correct
2 Correct 17 ms 596 KB Output is correct
3 Correct 45 ms 924 KB Output is correct
4 Correct 41 ms 840 KB Output is correct
5 Correct 57 ms 832 KB Output is correct
6 Correct 37 ms 848 KB Output is correct
7 Correct 8 ms 340 KB Output is correct
8 Correct 37 ms 840 KB Output is correct
9 Correct 90 ms 1408 KB Output is correct
10 Correct 57 ms 848 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 2 ms 316 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 212 KB Output is correct
22 Correct 1 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 24 ms 596 KB Output is correct
27 Correct 68 ms 1344 KB Output is correct
28 Correct 87 ms 1388 KB Output is correct
29 Correct 128 ms 1340 KB Output is correct
30 Correct 130 ms 1348 KB Output is correct
31 Correct 66 ms 1348 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 43 ms 920 KB Output is correct
34 Correct 78 ms 1392 KB Output is correct
35 Correct 8 ms 416 KB Output is correct
36 Correct 52 ms 844 KB Output is correct
37 Correct 61 ms 1352 KB Output is correct
38 Correct 82 ms 1352 KB Output is correct
39 Correct 28 ms 840 KB Output is correct
40 Correct 3 ms 340 KB Output is correct
41 Correct 133 ms 3140 KB Output is correct
42 Correct 104 ms 3380 KB Output is correct
43 Correct 112 ms 3164 KB Output is correct
44 Correct 101 ms 3232 KB Output is correct
45 Correct 104 ms 3480 KB Output is correct
46 Correct 146 ms 3320 KB Output is correct
47 Correct 100 ms 3212 KB Output is correct
48 Correct 113 ms 3152 KB Output is correct
49 Correct 102 ms 3172 KB Output is correct
50 Correct 360 ms 3188 KB Output is correct
51 Correct 388 ms 3452 KB Output is correct
52 Correct 374 ms 3248 KB Output is correct
53 Correct 381 ms 3420 KB Output is correct
54 Correct 356 ms 3176 KB Output is correct
55 Correct 410 ms 3564 KB Output is correct
56 Correct 339 ms 3128 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 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 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 65 ms 876 KB Output is correct
10 Correct 17 ms 596 KB Output is correct
11 Correct 45 ms 924 KB Output is correct
12 Correct 41 ms 840 KB Output is correct
13 Correct 57 ms 832 KB Output is correct
14 Correct 37 ms 848 KB Output is correct
15 Correct 8 ms 340 KB Output is correct
16 Correct 37 ms 840 KB Output is correct
17 Correct 90 ms 1408 KB Output is correct
18 Correct 57 ms 848 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 2 ms 316 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 212 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 1 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 24 ms 596 KB Output is correct
35 Correct 68 ms 1344 KB Output is correct
36 Correct 87 ms 1388 KB Output is correct
37 Correct 128 ms 1340 KB Output is correct
38 Correct 130 ms 1348 KB Output is correct
39 Correct 66 ms 1348 KB Output is correct
40 Correct 1 ms 212 KB Output is correct
41 Correct 43 ms 920 KB Output is correct
42 Correct 78 ms 1392 KB Output is correct
43 Correct 8 ms 416 KB Output is correct
44 Correct 52 ms 844 KB Output is correct
45 Correct 61 ms 1352 KB Output is correct
46 Correct 82 ms 1352 KB Output is correct
47 Correct 28 ms 840 KB Output is correct
48 Correct 3 ms 340 KB Output is correct
49 Correct 133 ms 3140 KB Output is correct
50 Correct 104 ms 3380 KB Output is correct
51 Correct 112 ms 3164 KB Output is correct
52 Correct 101 ms 3232 KB Output is correct
53 Correct 104 ms 3480 KB Output is correct
54 Correct 146 ms 3320 KB Output is correct
55 Correct 100 ms 3212 KB Output is correct
56 Correct 113 ms 3152 KB Output is correct
57 Correct 102 ms 3172 KB Output is correct
58 Correct 360 ms 3188 KB Output is correct
59 Correct 388 ms 3452 KB Output is correct
60 Correct 374 ms 3248 KB Output is correct
61 Correct 381 ms 3420 KB Output is correct
62 Correct 356 ms 3176 KB Output is correct
63 Correct 410 ms 3564 KB Output is correct
64 Correct 339 ms 3128 KB Output is correct
65 Correct 1 ms 212 KB Output is correct
66 Incorrect 1 ms 212 KB Output isn't correct
67 Halted 0 ms 0 KB -