oj.uz

Submission #378526

# Submission time Handle Problem Language Result Execution time Memory
378526 2021-03-17T01:26:26 Z joylintp Chessboard (IZhO18_chessboard) C++17
70 / 100
 247 ms 1132 KB 
#include<bits/stdc++.h>
using namespace std;

//#pragma gcc optimize("Ofast,unroll-loops")
//#pragma gcc target("sse,sse2,sse3,ssse3,sse4,avx,avx2,fma,abm,mmx,popcnt,tune=native")
//#define int long long
//#define double long double
#define MP make_pair
#define F first
#define S second
#define MOD 1000000007

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int N, K;
    cin >> N >> K;

    vector<pair<int, int>> B(K);
    for (auto &p : B)
        cin >> p.F >> p.S >> p.F >> p.S, p.F--, p.S--;

    vector<int> fac = {1};
    for (int i = 2; i * i <= N; i++)
        if (N % i == 0)
        {
            if (i * i != N)
                fac.push_back(i);
            fac.push_back(N / i);
        }

    long long ans = 9e18;
    for (int x : fac)
    {
        long long wc = (long long)(N / x) * (N / x) / 2 * x * x, bc = (long long)N * N - wc;
        for (auto p : B)
            if ((p.F / x + p.S / x) % 2)
                wc--, bc++;
            else
                wc++, bc--;

        ans = min({ans, wc, bc});
    }
    cout << ans << '\n';

    return 0;
}

//      *   *  *****  *   *  *   *   ****  ****    ****     **    **
//     *   *  *      **  *  *   *  *      *   *  *        * *   * *
//    *****  *****  * * *  *   *  *      ****   *       *  *     *
//   *   *      *  *  **  *   *  *      *  *   *       *****    *
//  *   *  *****  *   *   ***    ****  *   *    ****     *   *****

//      *****  *****  *   *  *      *****  *   *  *****  *****
//        *   *   *  *   *  *        *    **  *    *    *   *
//       *   *   *  *****  *        *    * * *    *    *****
//   *  *   *   *    *    *        *    *  **    *    *
//  ****   *****    *    *****  *****  *   *    *    *

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 0 ms 364 KB Output is correct
4 Correct 0 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 0 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 23 ms 876 KB Output is correct
2 Correct 7 ms 492 KB Output is correct
3 Correct 15 ms 620 KB Output is correct
4 Correct 16 ms 748 KB Output is correct
5 Correct 20 ms 748 KB Output is correct
6 Correct 13 ms 620 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 15 ms 620 KB Output is correct
9 Correct 34 ms 1004 KB Output is correct
10 Correct 19 ms 768 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 0 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 0 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 10 ms 492 KB Output is correct
17 Correct 27 ms 1004 KB Output is correct
18 Correct 37 ms 1132 KB Output is correct
19 Correct 64 ms 1004 KB Output is correct
20 Correct 71 ms 1132 KB Output is correct
21 Correct 26 ms 1004 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 20 ms 620 KB Output is correct
24 Correct 31 ms 1004 KB Output is correct
25 Correct 4 ms 364 KB Output is correct
26 Correct 20 ms 768 KB Output is correct
27 Correct 26 ms 876 KB Output is correct
28 Correct 33 ms 1132 KB Output is correct
29 Correct 11 ms 620 KB Output is correct
30 Correct 1 ms 364 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 876 KB Output is correct
2 Correct 7 ms 492 KB Output is correct
3 Correct 15 ms 620 KB Output is correct
4 Correct 16 ms 748 KB Output is correct
5 Correct 20 ms 748 KB Output is correct
6 Correct 13 ms 620 KB Output is correct
7 Correct 3 ms 364 KB Output is correct
8 Correct 15 ms 620 KB Output is correct
9 Correct 34 ms 1004 KB Output is correct
10 Correct 19 ms 768 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 0 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 10 ms 492 KB Output is correct
27 Correct 27 ms 1004 KB Output is correct
28 Correct 37 ms 1132 KB Output is correct
29 Correct 64 ms 1004 KB Output is correct
30 Correct 71 ms 1132 KB Output is correct
31 Correct 26 ms 1004 KB Output is correct
32 Correct 1 ms 364 KB Output is correct
33 Correct 20 ms 620 KB Output is correct
34 Correct 31 ms 1004 KB Output is correct
35 Correct 4 ms 364 KB Output is correct
36 Correct 20 ms 768 KB Output is correct
37 Correct 26 ms 876 KB Output is correct
38 Correct 33 ms 1132 KB Output is correct
39 Correct 11 ms 620 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 65 ms 1004 KB Output is correct
42 Correct 39 ms 1004 KB Output is correct
43 Correct 45 ms 1004 KB Output is correct
44 Correct 36 ms 1004 KB Output is correct
45 Correct 36 ms 1132 KB Output is correct
46 Correct 68 ms 1004 KB Output is correct
47 Correct 31 ms 1004 KB Output is correct
48 Correct 40 ms 1004 KB Output is correct
49 Correct 34 ms 1004 KB Output is correct
50 Correct 226 ms 1004 KB Output is correct
51 Correct 240 ms 1132 KB Output is correct
52 Correct 223 ms 1004 KB Output is correct
53 Correct 237 ms 1132 KB Output is correct
54 Correct 217 ms 1004 KB Output is correct
55 Correct 247 ms 1132 KB Output is correct
56 Correct 212 ms 1004 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 0 ms 364 KB Output is correct
4 Correct 0 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 0 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 23 ms 876 KB Output is correct
10 Correct 7 ms 492 KB Output is correct
11 Correct 15 ms 620 KB Output is correct
12 Correct 16 ms 748 KB Output is correct
13 Correct 20 ms 748 KB Output is correct
14 Correct 13 ms 620 KB Output is correct
15 Correct 3 ms 364 KB Output is correct
16 Correct 15 ms 620 KB Output is correct
17 Correct 34 ms 1004 KB Output is correct
18 Correct 19 ms 768 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 0 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 10 ms 492 KB Output is correct
35 Correct 27 ms 1004 KB Output is correct
36 Correct 37 ms 1132 KB Output is correct
37 Correct 64 ms 1004 KB Output is correct
38 Correct 71 ms 1132 KB Output is correct
39 Correct 26 ms 1004 KB Output is correct
40 Correct 1 ms 364 KB Output is correct
41 Correct 20 ms 620 KB Output is correct
42 Correct 31 ms 1004 KB Output is correct
43 Correct 4 ms 364 KB Output is correct
44 Correct 20 ms 768 KB Output is correct
45 Correct 26 ms 876 KB Output is correct
46 Correct 33 ms 1132 KB Output is correct
47 Correct 11 ms 620 KB Output is correct
48 Correct 1 ms 364 KB Output is correct
49 Correct 65 ms 1004 KB Output is correct
50 Correct 39 ms 1004 KB Output is correct
51 Correct 45 ms 1004 KB Output is correct
52 Correct 36 ms 1004 KB Output is correct
53 Correct 36 ms 1132 KB Output is correct
54 Correct 68 ms 1004 KB Output is correct
55 Correct 31 ms 1004 KB Output is correct
56 Correct 40 ms 1004 KB Output is correct
57 Correct 34 ms 1004 KB Output is correct
58 Correct 226 ms 1004 KB Output is correct
59 Correct 240 ms 1132 KB Output is correct
60 Correct 223 ms 1004 KB Output is correct
61 Correct 237 ms 1132 KB Output is correct
62 Correct 217 ms 1004 KB Output is correct
63 Correct 247 ms 1132 KB Output is correct
64 Correct 212 ms 1004 KB Output is correct
65 Correct 0 ms 364 KB Output is correct
66 Incorrect 0 ms 364 KB Output isn't correct
67 Halted 0 ms 0 KB -