oj.uz

Submission #492362

# Submission time Handle Problem Language Result Execution time Memory
492362 2021-12-07T03:03:18 Z Rainbowbunny Chessboard (IZhO18_chessboard) C++17
100 / 100
 472 ms 4296 KB 
#include <bits/stdc++.h>
using namespace std;

const int MAXN = 1e5 + 5;

int n, k;
int xl[MAXN], xr[MAXN], yl[MAXN], yr[MAXN];

pair <int, int> Get(int p, int id)
{
    if(p < 0)
    {
        return make_pair(0, 0);
    }
    int seg = p / id + 1;
    int cw = (seg + 1) / 2, cb = seg / 2;
    if(cw == cb)
    {
        return make_pair(cw * id, (cb - 1) * id + p % id + 1);
    }
    else
    {
        return make_pair((cw - 1) * id + p % id + 1, cb * id);
    }
}

long long Solve(int id)
{
    long long tmp = 1ll * (n / id) * (n / id) / 2;
    long long curans = tmp * id * id;
    for(int i = 1; i <= k; i++)
    {
        pair <int, int> AA = Get(xr[i], id), BB = Get(xl[i] - 1, id);
        long long countxw = AA.first - BB.first, countxb = AA.second - BB.second;
        AA = Get(yr[i], id), BB = Get(yl[i] - 1, id);
        long long countyw = AA.first - BB.first, countyb = AA.second - BB.second;
        long long corr = countyw * countxb + countyb * countxw, incorr = countyb * countxb + countyw * countxw;
        curans -= corr;
        curans += incorr;
    }
    return min(curans, 1ll * n * n - curans);
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> k;
    for(int i = 1; i <= k; i++)
    {
        cin >> xl[i] >> yl[i] >> xr[i] >> yr[i];
        xl[i]--;
        yl[i]--;
        xr[i]--;
        yr[i]--;
    }
    long long ans = 1e18;
    for(int i = 1; i < n; i++)
    {
        if(n % i == 0)
        {
            ans = min(ans, Solve(i));
        }
    }
    cout << ans << '\n';
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 1208 KB Output is correct
2 Correct 8 ms 480 KB Output is correct
3 Correct 13 ms 944 KB Output is correct
4 Correct 14 ms 972 KB Output is correct
5 Correct 17 ms 1108 KB Output is correct
6 Correct 13 ms 872 KB Output is correct
7 Correct 3 ms 332 KB Output is correct
8 Correct 13 ms 844 KB Output is correct
9 Correct 29 ms 1612 KB Output is correct
10 Correct 17 ms 1008 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 284 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 284 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 0 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 10 ms 716 KB Output is correct
17 Correct 24 ms 1556 KB Output is correct
18 Correct 32 ms 1788 KB Output is correct
19 Correct 95 ms 1612 KB Output is correct
20 Correct 112 ms 1848 KB Output is correct
21 Correct 21 ms 1512 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 26 ms 972 KB Output is correct
24 Correct 41 ms 1696 KB Output is correct
25 Correct 5 ms 460 KB Output is correct
26 Correct 25 ms 1100 KB Output is correct
27 Correct 29 ms 1380 KB Output is correct
28 Correct 33 ms 1736 KB Output is correct
29 Correct 9 ms 756 KB Output is correct
30 Correct 1 ms 332 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 29 ms 1208 KB Output is correct
2 Correct 8 ms 480 KB Output is correct
3 Correct 13 ms 944 KB Output is correct
4 Correct 14 ms 972 KB Output is correct
5 Correct 17 ms 1108 KB Output is correct
6 Correct 13 ms 872 KB Output is correct
7 Correct 3 ms 332 KB Output is correct
8 Correct 13 ms 844 KB Output is correct
9 Correct 29 ms 1612 KB Output is correct
10 Correct 17 ms 1008 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 1 ms 332 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 0 ms 332 KB Output is correct
19 Correct 1 ms 284 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 10 ms 716 KB Output is correct
27 Correct 24 ms 1556 KB Output is correct
28 Correct 32 ms 1788 KB Output is correct
29 Correct 95 ms 1612 KB Output is correct
30 Correct 112 ms 1848 KB Output is correct
31 Correct 21 ms 1512 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 26 ms 972 KB Output is correct
34 Correct 41 ms 1696 KB Output is correct
35 Correct 5 ms 460 KB Output is correct
36 Correct 25 ms 1100 KB Output is correct
37 Correct 29 ms 1380 KB Output is correct
38 Correct 33 ms 1736 KB Output is correct
39 Correct 9 ms 756 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 91 ms 1612 KB Output is correct
42 Correct 36 ms 1784 KB Output is correct
43 Correct 55 ms 1608 KB Output is correct
44 Correct 47 ms 1612 KB Output is correct
45 Correct 34 ms 1740 KB Output is correct
46 Correct 111 ms 1752 KB Output is correct
47 Correct 28 ms 1576 KB Output is correct
48 Correct 47 ms 1668 KB Output is correct
49 Correct 33 ms 1604 KB Output is correct
50 Correct 402 ms 1844 KB Output is correct
51 Correct 460 ms 4132 KB Output is correct
52 Correct 408 ms 3896 KB Output is correct
53 Correct 458 ms 4036 KB Output is correct
54 Correct 397 ms 3904 KB Output is correct
55 Correct 439 ms 4248 KB Output is correct
56 Correct 386 ms 3712 KB Output is correct

Subtask #6
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 29 ms 1208 KB Output is correct
10 Correct 8 ms 480 KB Output is correct
11 Correct 13 ms 944 KB Output is correct
12 Correct 14 ms 972 KB Output is correct
13 Correct 17 ms 1108 KB Output is correct
14 Correct 13 ms 872 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 13 ms 844 KB Output is correct
17 Correct 29 ms 1612 KB Output is correct
18 Correct 17 ms 1008 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Correct 1 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 1 ms 332 KB Output is correct
26 Correct 0 ms 332 KB Output is correct
27 Correct 1 ms 284 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 0 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 1 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 10 ms 716 KB Output is correct
35 Correct 24 ms 1556 KB Output is correct
36 Correct 32 ms 1788 KB Output is correct
37 Correct 95 ms 1612 KB Output is correct
38 Correct 112 ms 1848 KB Output is correct
39 Correct 21 ms 1512 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 26 ms 972 KB Output is correct
42 Correct 41 ms 1696 KB Output is correct
43 Correct 5 ms 460 KB Output is correct
44 Correct 25 ms 1100 KB Output is correct
45 Correct 29 ms 1380 KB Output is correct
46 Correct 33 ms 1736 KB Output is correct
47 Correct 9 ms 756 KB Output is correct
48 Correct 1 ms 332 KB Output is correct
49 Correct 91 ms 1612 KB Output is correct
50 Correct 36 ms 1784 KB Output is correct
51 Correct 55 ms 1608 KB Output is correct
52 Correct 47 ms 1612 KB Output is correct
53 Correct 34 ms 1740 KB Output is correct
54 Correct 111 ms 1752 KB Output is correct
55 Correct 28 ms 1576 KB Output is correct
56 Correct 47 ms 1668 KB Output is correct
57 Correct 33 ms 1604 KB Output is correct
58 Correct 402 ms 1844 KB Output is correct
59 Correct 460 ms 4132 KB Output is correct
60 Correct 408 ms 3896 KB Output is correct
61 Correct 458 ms 4036 KB Output is correct
62 Correct 397 ms 3904 KB Output is correct
63 Correct 439 ms 4248 KB Output is correct
64 Correct 386 ms 3712 KB Output is correct
65 Correct 1 ms 332 KB Output is correct
66 Correct 1 ms 332 KB Output is correct
67 Correct 437 ms 4012 KB Output is correct
68 Correct 432 ms 3996 KB Output is correct
69 Correct 379 ms 3540 KB Output is correct
70 Correct 402 ms 3816 KB Output is correct
71 Correct 411 ms 3832 KB Output is correct
72 Correct 394 ms 3772 KB Output is correct
73 Correct 401 ms 3664 KB Output is correct
74 Correct 448 ms 3948 KB Output is correct
75 Correct 412 ms 3896 KB Output is correct
76 Correct 444 ms 4044 KB Output is correct
77 Correct 82 ms 4224 KB Output is correct
78 Correct 39 ms 3736 KB Output is correct
79 Correct 60 ms 3660 KB Output is correct
80 Correct 83 ms 3772 KB Output is correct
81 Correct 76 ms 3552 KB Output is correct
82 Correct 51 ms 4000 KB Output is correct
83 Correct 45 ms 3652 KB Output is correct
84 Correct 272 ms 4132 KB Output is correct
85 Correct 456 ms 4164 KB Output is correct
86 Correct 1 ms 332 KB Output is correct
87 Correct 1 ms 332 KB Output is correct
88 Correct 472 ms 4296 KB Output is correct
89 Correct 87 ms 972 KB Output is correct
90 Correct 1 ms 204 KB Output is correct