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Submission #343292

# Submission time Handle Problem Language Result Execution time Memory
343292 2021-01-03T15:50:21 Z Sprdalo Chessboard (IZhO18_chessboard) C++17
70 / 100
 255 ms 1004 KB 
#include <bits/stdc++.h>

using namespace std;

#define int ll
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef vector<double> vd;
typedef vector<bool> vb;
typedef vector<char> vc;
typedef vector<string> vs;
typedef vector<pi> vp;
typedef vector<pl> vpl;

void no(){
    cout << "-1\n";
    exit(0);
}

signed main()
{
    ios_base::sync_with_stdio(false); 
    cin.tie(nullptr); 
    cout.tie(nullptr); 
    cerr.tie(nullptr);    

    int n, k;
    cin >> n >> k;

    vi d;
    for (int i = 1; i < n; ++i){
        if (n % i == 0){
            d.push_back(i);
        }
    }

    int len = d.size();
    vi b(len);
    for (int i = 0; i < k; ++i){
        int x1,y1,x2,y2;
        cin >> x1>>y1>>x2>>y2;

        if (x1!=x2 || y1 != y2)
            return 0;
        --x1;
        --y1;

        for (int j = 0; j < len; ++j){
            int t = d[j];

            bool b1 = (x1%(2*t) < t), b2 = (y1%(2*t) < t);
            if (b1 == b2){
                b[j]++;
            }
        }
    }

    int sol = n*n;
    for (int i = 0; i < len; ++i){
        int t = d[i],c;
        
        if (n % (2*t) == 0)
            c = (n*n)/2;
        else
            c = ((n-t)*(n-t))/2 + n*t;

        int res = k-b[i] + c-b[i];
        //cout << c << ' ';
        sol = min(sol, res);

        b[i] = k-b[i];

        c = n*n-c;

        res = k+c - 2 * b[i];
        //cout << c << endl;
        sol = min(sol, res);
    }

    cout << sol << '\n';
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 492 KB Output is correct
2 Correct 6 ms 492 KB Output is correct
3 Correct 15 ms 748 KB Output is correct
4 Correct 16 ms 748 KB Output is correct
5 Correct 20 ms 748 KB Output is correct
6 Correct 14 ms 748 KB Output is correct
7 Correct 4 ms 492 KB Output is correct
8 Correct 16 ms 748 KB Output is correct
9 Correct 34 ms 1004 KB Output is correct
10 Correct 19 ms 748 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 12 ms 620 KB Output is correct
17 Correct 26 ms 748 KB Output is correct
18 Correct 33 ms 748 KB Output is correct
19 Correct 65 ms 748 KB Output is correct
20 Correct 71 ms 748 KB Output is correct
21 Correct 25 ms 748 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 20 ms 620 KB Output is correct
24 Correct 30 ms 492 KB Output is correct
25 Correct 4 ms 492 KB Output is correct
26 Correct 19 ms 492 KB Output is correct
27 Correct 26 ms 620 KB Output is correct
28 Correct 33 ms 492 KB Output is correct
29 Correct 11 ms 640 KB Output is correct
30 Correct 2 ms 364 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 492 KB Output is correct
2 Correct 6 ms 492 KB Output is correct
3 Correct 15 ms 748 KB Output is correct
4 Correct 16 ms 748 KB Output is correct
5 Correct 20 ms 748 KB Output is correct
6 Correct 14 ms 748 KB Output is correct
7 Correct 4 ms 492 KB Output is correct
8 Correct 16 ms 748 KB Output is correct
9 Correct 34 ms 1004 KB Output is correct
10 Correct 19 ms 748 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 12 ms 620 KB Output is correct
27 Correct 26 ms 748 KB Output is correct
28 Correct 33 ms 748 KB Output is correct
29 Correct 65 ms 748 KB Output is correct
30 Correct 71 ms 748 KB Output is correct
31 Correct 25 ms 748 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 20 ms 620 KB Output is correct
34 Correct 30 ms 492 KB Output is correct
35 Correct 4 ms 492 KB Output is correct
36 Correct 19 ms 492 KB Output is correct
37 Correct 26 ms 620 KB Output is correct
38 Correct 33 ms 492 KB Output is correct
39 Correct 11 ms 640 KB Output is correct
40 Correct 2 ms 364 KB Output is correct
41 Correct 64 ms 492 KB Output is correct
42 Correct 38 ms 512 KB Output is correct
43 Correct 46 ms 492 KB Output is correct
44 Correct 38 ms 620 KB Output is correct
45 Correct 36 ms 492 KB Output is correct
46 Correct 70 ms 580 KB Output is correct
47 Correct 32 ms 492 KB Output is correct
48 Correct 41 ms 492 KB Output is correct
49 Correct 34 ms 492 KB Output is correct
50 Correct 229 ms 492 KB Output is correct
51 Correct 253 ms 492 KB Output is correct
52 Correct 227 ms 492 KB Output is correct
53 Correct 249 ms 620 KB Output is correct
54 Correct 225 ms 492 KB Output is correct
55 Correct 255 ms 620 KB Output is correct
56 Correct 228 ms 620 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 24 ms 492 KB Output is correct
10 Correct 6 ms 492 KB Output is correct
11 Correct 15 ms 748 KB Output is correct
12 Correct 16 ms 748 KB Output is correct
13 Correct 20 ms 748 KB Output is correct
14 Correct 14 ms 748 KB Output is correct
15 Correct 4 ms 492 KB Output is correct
16 Correct 16 ms 748 KB Output is correct
17 Correct 34 ms 1004 KB Output is correct
18 Correct 19 ms 748 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct
29 Correct 1 ms 364 KB Output is correct
30 Correct 1 ms 364 KB Output is correct
31 Correct 1 ms 364 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 1 ms 364 KB Output is correct
34 Correct 12 ms 620 KB Output is correct
35 Correct 26 ms 748 KB Output is correct
36 Correct 33 ms 748 KB Output is correct
37 Correct 65 ms 748 KB Output is correct
38 Correct 71 ms 748 KB Output is correct
39 Correct 25 ms 748 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 20 ms 620 KB Output is correct
42 Correct 30 ms 492 KB Output is correct
43 Correct 4 ms 492 KB Output is correct
44 Correct 19 ms 492 KB Output is correct
45 Correct 26 ms 620 KB Output is correct
46 Correct 33 ms 492 KB Output is correct
47 Correct 11 ms 640 KB Output is correct
48 Correct 2 ms 364 KB Output is correct
49 Correct 64 ms 492 KB Output is correct
50 Correct 38 ms 512 KB Output is correct
51 Correct 46 ms 492 KB Output is correct
52 Correct 38 ms 620 KB Output is correct
53 Correct 36 ms 492 KB Output is correct
54 Correct 70 ms 580 KB Output is correct
55 Correct 32 ms 492 KB Output is correct
56 Correct 41 ms 492 KB Output is correct
57 Correct 34 ms 492 KB Output is correct
58 Correct 229 ms 492 KB Output is correct
59 Correct 253 ms 492 KB Output is correct
60 Correct 227 ms 492 KB Output is correct
61 Correct 249 ms 620 KB Output is correct
62 Correct 225 ms 492 KB Output is correct
63 Correct 255 ms 620 KB Output is correct
64 Correct 228 ms 620 KB Output is correct
65 Correct 1 ms 364 KB Output is correct
66 Incorrect 1 ms 364 KB Output isn't correct
67 Halted 0 ms 0 KB -