oj.uz

Submission #608834

# Submission time Handle Problem Language Result Execution time Memory
608834 2022-07-27T10:38:05 Z pakhomovee Chessboard (IZhO18_chessboard) C++17
70 / 100
 322 ms 5708 KB 
#include <iostream>
#include <vector>
#include <string>
#include <iomanip>
#include <algorithm>
#include <set>
#include <numeric>
#include <queue>

using namespace std;

#define int long long

struct rect {
    int x1, y1, x2, y2;
    rect() {}
};

int32_t main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    int n, k;
    cin >> n >> k;
    vector<rect> r(k);
    int S = 0;
    for (int i = 0; i < k; ++i) {
        cin >> r[i].x1 >> r[i].y1 >> r[i].x2 >> r[i].y2;
        --r[i].x1; --r[i].y1; --r[i].x2; --r[i].y2;
        S += (r[i].x2 - r[i].x1 + 1) * (r[i].y2 - r[i].y1 + 1);
    }
    int ans = n * n;
    for (int len = 1; len < n; ++len) {
        if (n % len) continue;
        if (1) {
            int cntSide = n / len;
            int black = (cntSide * cntSide + 1) / 2 * len * len;
            int wrongWhite = 0;
            for (rect q : r) {
                int par = (q.x1 / len + q.y1 / len) % 2;
                if (par == 1) {
                    wrongWhite++;
                }
            }
            ans = min(ans, wrongWhite * 2 + black - S);
        }
        if (1) {
            int cntSide = n / len;
            int black = (cntSide * cntSide) / 2 * len * len;
            int wrongWhite = 0;
            for (rect q : r) {
                int par = (q.x1 / len + q.y1 / len) % 2;
                if (par == 0) {
                    wrongWhite++;
                }
            }
            ans = min(ans, wrongWhite * 2 + black - S);
        }
    }
    cout << ans;
}
/*
 6 8
 3 3 3 3
 1 2 1 2
 3 4 3 4
 5 5 5 5
 4 3 4 3
 4 4 4 4
 2 1 2 1
 3 6 3 6
*/

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 1 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 20 ms 3656 KB Output is correct
2 Correct 6 ms 1108 KB Output is correct
3 Correct 13 ms 2388 KB Output is correct
4 Correct 14 ms 2508 KB Output is correct
5 Correct 22 ms 3220 KB Output is correct
6 Correct 12 ms 2116 KB Output is correct
7 Correct 3 ms 648 KB Output is correct
8 Correct 16 ms 2164 KB Output is correct
9 Correct 32 ms 5136 KB Output is correct
10 Correct 17 ms 3072 KB Output is correct

Subtask #3
15.0 / 15.0

# 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 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 340 KB Output is correct

Subtask #4
16.0 / 16.0

# 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 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 0 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 13 ms 1604 KB Output is correct
17 Correct 22 ms 4192 KB Output is correct
18 Correct 30 ms 5000 KB Output is correct
19 Correct 70 ms 4392 KB Output is correct
20 Correct 78 ms 4880 KB Output is correct
21 Correct 21 ms 4140 KB Output is correct
22 Correct 1 ms 324 KB Output is correct
23 Correct 17 ms 2260 KB Output is correct
24 Correct 27 ms 4572 KB Output is correct
25 Correct 4 ms 724 KB Output is correct
26 Correct 18 ms 2940 KB Output is correct
27 Correct 26 ms 3448 KB Output is correct
28 Correct 30 ms 4812 KB Output is correct
29 Correct 11 ms 1876 KB Output is correct
30 Correct 1 ms 340 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 20 ms 3656 KB Output is correct
2 Correct 6 ms 1108 KB Output is correct
3 Correct 13 ms 2388 KB Output is correct
4 Correct 14 ms 2508 KB Output is correct
5 Correct 22 ms 3220 KB Output is correct
6 Correct 12 ms 2116 KB Output is correct
7 Correct 3 ms 648 KB Output is correct
8 Correct 16 ms 2164 KB Output is correct
9 Correct 32 ms 5136 KB Output is correct
10 Correct 17 ms 3072 KB Output is correct
11 Correct 0 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 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 0 ms 340 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 328 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 13 ms 1604 KB Output is correct
27 Correct 22 ms 4192 KB Output is correct
28 Correct 30 ms 5000 KB Output is correct
29 Correct 70 ms 4392 KB Output is correct
30 Correct 78 ms 4880 KB Output is correct
31 Correct 21 ms 4140 KB Output is correct
32 Correct 1 ms 324 KB Output is correct
33 Correct 17 ms 2260 KB Output is correct
34 Correct 27 ms 4572 KB Output is correct
35 Correct 4 ms 724 KB Output is correct
36 Correct 18 ms 2940 KB Output is correct
37 Correct 26 ms 3448 KB Output is correct
38 Correct 30 ms 4812 KB Output is correct
39 Correct 11 ms 1876 KB Output is correct
40 Correct 1 ms 340 KB Output is correct
41 Correct 69 ms 4800 KB Output is correct
42 Correct 40 ms 5448 KB Output is correct
43 Correct 47 ms 4820 KB Output is correct
44 Correct 35 ms 5312 KB Output is correct
45 Correct 41 ms 5652 KB Output is correct
46 Correct 76 ms 5436 KB Output is correct
47 Correct 28 ms 4940 KB Output is correct
48 Correct 39 ms 5072 KB Output is correct
49 Correct 35 ms 4916 KB Output is correct
50 Correct 287 ms 5336 KB Output is correct
51 Correct 306 ms 5568 KB Output is correct
52 Correct 289 ms 5268 KB Output is correct
53 Correct 303 ms 5496 KB Output is correct
54 Correct 284 ms 5096 KB Output is correct
55 Correct 322 ms 5708 KB Output is correct
56 Correct 268 ms 4956 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 1 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 20 ms 3656 KB Output is correct
10 Correct 6 ms 1108 KB Output is correct
11 Correct 13 ms 2388 KB Output is correct
12 Correct 14 ms 2508 KB Output is correct
13 Correct 22 ms 3220 KB Output is correct
14 Correct 12 ms 2116 KB Output is correct
15 Correct 3 ms 648 KB Output is correct
16 Correct 16 ms 2164 KB Output is correct
17 Correct 32 ms 5136 KB Output is correct
18 Correct 17 ms 3072 KB Output is correct
19 Correct 0 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 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 0 ms 340 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 340 KB Output is correct
30 Correct 1 ms 340 KB Output is correct
31 Correct 1 ms 340 KB Output is correct
32 Correct 1 ms 328 KB Output is correct
33 Correct 1 ms 340 KB Output is correct
34 Correct 13 ms 1604 KB Output is correct
35 Correct 22 ms 4192 KB Output is correct
36 Correct 30 ms 5000 KB Output is correct
37 Correct 70 ms 4392 KB Output is correct
38 Correct 78 ms 4880 KB Output is correct
39 Correct 21 ms 4140 KB Output is correct
40 Correct 1 ms 324 KB Output is correct
41 Correct 17 ms 2260 KB Output is correct
42 Correct 27 ms 4572 KB Output is correct
43 Correct 4 ms 724 KB Output is correct
44 Correct 18 ms 2940 KB Output is correct
45 Correct 26 ms 3448 KB Output is correct
46 Correct 30 ms 4812 KB Output is correct
47 Correct 11 ms 1876 KB Output is correct
48 Correct 1 ms 340 KB Output is correct
49 Correct 69 ms 4800 KB Output is correct
50 Correct 40 ms 5448 KB Output is correct
51 Correct 47 ms 4820 KB Output is correct
52 Correct 35 ms 5312 KB Output is correct
53 Correct 41 ms 5652 KB Output is correct
54 Correct 76 ms 5436 KB Output is correct
55 Correct 28 ms 4940 KB Output is correct
56 Correct 39 ms 5072 KB Output is correct
57 Correct 35 ms 4916 KB Output is correct
58 Correct 287 ms 5336 KB Output is correct
59 Correct 306 ms 5568 KB Output is correct
60 Correct 289 ms 5268 KB Output is correct
61 Correct 303 ms 5496 KB Output is correct
62 Correct 284 ms 5096 KB Output is correct
63 Correct 322 ms 5708 KB Output is correct
64 Correct 268 ms 4956 KB Output is correct
65 Correct 0 ms 324 KB Output is correct
66 Incorrect 0 ms 340 KB Output isn't correct
67 Halted 0 ms 0 KB -