oj.uz

Submission #861612

# Submission time Handle Problem Language Result Execution time Memory
861612 2023-10-16T14:52:59 Z PagodePaiva Chessboard (IZhO18_chessboard) C++17
47 / 100
 302 ms 9952 KB 
#include<bits/stdc++.h>
#define inf 1e18
#define int long long
#define N 1010

using namespace std;

int v[N][N];
int mark[N][N];

int32_t main(){
    int n, k;
    cin >> n >> k;

    if(n > N-1 or n == 3){
        int res1 = 0;
        int res2 = 0;
        int p = n;

        if(n % 2 == 0){
            res1 = 2;
            res2 = 2;
        }

        else{
            res1 = (p*p+1)/2;
            res2 = (p*p-1)/2;
        }

        for(int i = 1;i <= k;i++){
            int a, b, c, d;
            cin >> a >> b >> c >> d;
            if(a % 2 != b % 2){
                res1++;
                res2--;
            }

            else{
                res1--;
                res2++; 
            }
        }

        cout << min(res1, res2) << '\n';    

        return 0;  
    }


    // vector <pair <int, int>> v;

    for(int i = 1;i <= k;i++){
        int a, b, c, d;
        cin >> a >> b >> c >> d;
        v[a][b] = 1;
    }

    int res = inf;

    for(int p = 1;p < n;p++){
        if(n % p != 0) continue;
        int resp = 0;

        for(int i = 1;i <= n;i++){
            for(int j = 1;j <= n;j++){
                int ti = (i-1)/p;
                int tj = (j-1)/p;

                if((ti % 2 )!= (tj % 2)){
                    if(v[i][j] != 0) resp++;
                }

                else{
                    if(v[i][j] != 1) resp++;
                }
            }
        }

        // cout << p << ' ' << resp << '\n';
        res = min(res, resp);
        resp = 0;

        for(int i = 1;i <= n;i++){
            for(int j = 1;j <= n;j++){
                int ti = (i-1)/p;
                int tj = (j-1)/p;

                if((ti % 2 )!= (tj % 2)){
                    if(v[i][j] != 1) resp++;
                }

                else{
                    if(v[i][j] != 0) resp++;
                }
            }
        }

        res = min(res, resp);
    }

    cout << res << '\n';
}

Subtask #1
8.0 / 8.0

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

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 348 KB Output is correct
2 Correct 12 ms 604 KB Output is correct
3 Correct 30 ms 1372 KB Output is correct
4 Correct 30 ms 1108 KB Output is correct
5 Correct 42 ms 1620 KB Output is correct
6 Correct 26 ms 1116 KB Output is correct
7 Correct 8 ms 452 KB Output is correct
8 Correct 26 ms 1060 KB Output is correct
9 Correct 68 ms 2500 KB Output is correct
10 Correct 39 ms 1424 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 2 ms 4540 KB Output is correct
4 Correct 2 ms 4444 KB Output is correct
5 Correct 2 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 2492 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4440 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 2 ms 4540 KB Output is correct
4 Correct 2 ms 4444 KB Output is correct
5 Correct 2 ms 4444 KB Output is correct
6 Correct 1 ms 4444 KB Output is correct
7 Correct 2 ms 4444 KB Output is correct
8 Correct 1 ms 4444 KB Output is correct
9 Correct 1 ms 4444 KB Output is correct
10 Correct 1 ms 4444 KB Output is correct
11 Correct 1 ms 4444 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 1 ms 4444 KB Output is correct
14 Correct 1 ms 4444 KB Output is correct
15 Correct 1 ms 2492 KB Output is correct
16 Correct 44 ms 9564 KB Output is correct
17 Correct 70 ms 9820 KB Output is correct
18 Correct 88 ms 9936 KB Output is correct
19 Correct 291 ms 9660 KB Output is correct
20 Correct 302 ms 9660 KB Output is correct
21 Correct 59 ms 9952 KB Output is correct
22 Correct 148 ms 8796 KB Output is correct
23 Correct 89 ms 9564 KB Output is correct
24 Correct 83 ms 9936 KB Output is correct
25 Correct 72 ms 9708 KB Output is correct
26 Correct 62 ms 9564 KB Output is correct
27 Correct 87 ms 9688 KB Output is correct
28 Correct 82 ms 9564 KB Output is correct
29 Correct 30 ms 9560 KB Output is correct
30 Correct 32 ms 9304 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 348 KB Output is correct
2 Correct 12 ms 604 KB Output is correct
3 Correct 30 ms 1372 KB Output is correct
4 Correct 30 ms 1108 KB Output is correct
5 Correct 42 ms 1620 KB Output is correct
6 Correct 26 ms 1116 KB Output is correct
7 Correct 8 ms 452 KB Output is correct
8 Correct 26 ms 1060 KB Output is correct
9 Correct 68 ms 2500 KB Output is correct
10 Correct 39 ms 1424 KB Output is correct
11 Correct 1 ms 4440 KB Output is correct
12 Correct 1 ms 4444 KB Output is correct
13 Correct 2 ms 4540 KB Output is correct
14 Correct 2 ms 4444 KB Output is correct
15 Correct 2 ms 4444 KB Output is correct
16 Correct 1 ms 4444 KB Output is correct
17 Correct 2 ms 4444 KB Output is correct
18 Correct 1 ms 4444 KB Output is correct
19 Correct 1 ms 4444 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 1 ms 4444 KB Output is correct
22 Correct 1 ms 4444 KB Output is correct
23 Correct 1 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 1 ms 2492 KB Output is correct
26 Correct 44 ms 9564 KB Output is correct
27 Correct 70 ms 9820 KB Output is correct
28 Correct 88 ms 9936 KB Output is correct
29 Correct 291 ms 9660 KB Output is correct
30 Correct 302 ms 9660 KB Output is correct
31 Correct 59 ms 9952 KB Output is correct
32 Correct 148 ms 8796 KB Output is correct
33 Correct 89 ms 9564 KB Output is correct
34 Correct 83 ms 9936 KB Output is correct
35 Correct 72 ms 9708 KB Output is correct
36 Correct 62 ms 9564 KB Output is correct
37 Correct 87 ms 9688 KB Output is correct
38 Correct 82 ms 9564 KB Output is correct
39 Correct 30 ms 9560 KB Output is correct
40 Correct 32 ms 9304 KB Output is correct
41 Incorrect 63 ms 2196 KB Output isn't correct
42 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 46 ms 348 KB Output is correct
10 Correct 12 ms 604 KB Output is correct
11 Correct 30 ms 1372 KB Output is correct
12 Correct 30 ms 1108 KB Output is correct
13 Correct 42 ms 1620 KB Output is correct
14 Correct 26 ms 1116 KB Output is correct
15 Correct 8 ms 452 KB Output is correct
16 Correct 26 ms 1060 KB Output is correct
17 Correct 68 ms 2500 KB Output is correct
18 Correct 39 ms 1424 KB Output is correct
19 Correct 1 ms 4440 KB Output is correct
20 Correct 1 ms 4444 KB Output is correct
21 Correct 2 ms 4540 KB Output is correct
22 Correct 2 ms 4444 KB Output is correct
23 Correct 2 ms 4444 KB Output is correct
24 Correct 1 ms 4444 KB Output is correct
25 Correct 2 ms 4444 KB Output is correct
26 Correct 1 ms 4444 KB Output is correct
27 Correct 1 ms 4444 KB Output is correct
28 Correct 1 ms 4444 KB Output is correct
29 Correct 1 ms 4444 KB Output is correct
30 Correct 1 ms 4444 KB Output is correct
31 Correct 1 ms 4444 KB Output is correct
32 Correct 1 ms 4444 KB Output is correct
33 Correct 1 ms 2492 KB Output is correct
34 Correct 44 ms 9564 KB Output is correct
35 Correct 70 ms 9820 KB Output is correct
36 Correct 88 ms 9936 KB Output is correct
37 Correct 291 ms 9660 KB Output is correct
38 Correct 302 ms 9660 KB Output is correct
39 Correct 59 ms 9952 KB Output is correct
40 Correct 148 ms 8796 KB Output is correct
41 Correct 89 ms 9564 KB Output is correct
42 Correct 83 ms 9936 KB Output is correct
43 Correct 72 ms 9708 KB Output is correct
44 Correct 62 ms 9564 KB Output is correct
45 Correct 87 ms 9688 KB Output is correct
46 Correct 82 ms 9564 KB Output is correct
47 Correct 30 ms 9560 KB Output is correct
48 Correct 32 ms 9304 KB Output is correct
49 Incorrect 63 ms 2196 KB Output isn't correct
50 Halted 0 ms 0 KB -