oj.uz

Submission #162803

# Submission time Handle Problem Language Result Execution time Memory
162803 2019-11-09T19:34:32 Z mrboorger Chessboard (IZhO18_chessboard) C++17
70 / 100
 721 ms 5880 KB 
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx")

#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

#include <bits/stdc++.h>

#define pb push_back
#define F first
#define S second
#define ll long long
#define ull unsigned long long
#define ld long double
#define sqr(x) (x) * (x)

using namespace std;
using namespace __gnu_pbds;

ll n, k;
vector <pair <pair <ll, ll>, pair <ll, ll>>> a;
ll ans;
void solve(ll l)
{
    ll cnt = sqr(((n + l) / (2 * l)) * l);
    cnt += sqr((n / (2 * l)) * l);
    {
        ll ot = cnt;
        for(int i = 0; i < k; ++i)
        {
            ll x = a[i].F.F;
            ll y = a[i].F.S;
            if (((((x + l - 1) / l) % 2) ^ (((y + l - 1) / l) % 2)) == 0) --ot;
                else ++ot;
        }
        ans = min(ans, ot);
    }
    {
        ll ot = n * n - cnt;
        for(int i = 0; i < k; ++i)
        {
            int x = a[i].F.F;
            int y = a[i].F.S;
            if (((((x + l - 1) / l) % 2) ^ (((y + l - 1) / l) % 2)) == 1) --ot;
                else ++ot;
        }
        ans = min(ans, ot);
    }
    return;
}

int main()
{
#ifdef LOCAL
//    freopen("input.txt", "r", stdin);
//    freopen("output.txt", "w", stdout);
#endif // LOCAL
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    cin >> n >> k;
    a.resize(k);
    for(int i = 0; i < k; ++i)
    {
        ll x1, y1, x2, y2;
        cin >> x1 >> y1 >> x2 >> y2;
        a[i] = {{x1, y1}, {x2, y2}};
    }
    ans = n * n;
    ll i;
    for(i = 1; i * i < n; ++i)
    {
        if (n % i == 0)
        {
            solve(i);
            if (i > 1) solve(n / i);
        }
    }
    if (i * i == n) solve(i);
    cout << ans;
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 3832 KB Output is correct
2 Correct 11 ms 1272 KB Output is correct
3 Correct 22 ms 2556 KB Output is correct
4 Correct 24 ms 2616 KB Output is correct
5 Correct 30 ms 3384 KB Output is correct
6 Correct 20 ms 2296 KB Output is correct
7 Correct 6 ms 760 KB Output is correct
8 Correct 20 ms 2320 KB Output is correct
9 Correct 49 ms 5240 KB Output is correct
10 Correct 28 ms 3064 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 3 ms 376 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 380 KB Output is correct
4 Correct 3 ms 376 KB Output is correct
5 Correct 3 ms 376 KB Output is correct
6 Correct 3 ms 376 KB Output is correct
7 Correct 3 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 3 ms 376 KB Output is correct
13 Correct 3 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 17 ms 1656 KB Output is correct
17 Correct 38 ms 4304 KB Output is correct
18 Correct 55 ms 5112 KB Output is correct
19 Correct 176 ms 4600 KB Output is correct
20 Correct 221 ms 5112 KB Output is correct
21 Correct 39 ms 4216 KB Output is correct
22 Correct 3 ms 380 KB Output is correct
23 Correct 33 ms 2296 KB Output is correct
24 Correct 50 ms 4600 KB Output is correct
25 Correct 8 ms 760 KB Output is correct
26 Correct 32 ms 3064 KB Output is correct
27 Correct 45 ms 3564 KB Output is correct
28 Correct 52 ms 4856 KB Output is correct
29 Correct 16 ms 1912 KB Output is correct
30 Correct 3 ms 504 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 33 ms 3832 KB Output is correct
2 Correct 11 ms 1272 KB Output is correct
3 Correct 22 ms 2556 KB Output is correct
4 Correct 24 ms 2616 KB Output is correct
5 Correct 30 ms 3384 KB Output is correct
6 Correct 20 ms 2296 KB Output is correct
7 Correct 6 ms 760 KB Output is correct
8 Correct 20 ms 2320 KB Output is correct
9 Correct 49 ms 5240 KB Output is correct
10 Correct 28 ms 3064 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 380 KB Output is correct
14 Correct 3 ms 376 KB Output is correct
15 Correct 3 ms 376 KB Output is correct
16 Correct 3 ms 376 KB Output is correct
17 Correct 3 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 376 KB Output is correct
22 Correct 3 ms 376 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 17 ms 1656 KB Output is correct
27 Correct 38 ms 4304 KB Output is correct
28 Correct 55 ms 5112 KB Output is correct
29 Correct 176 ms 4600 KB Output is correct
30 Correct 221 ms 5112 KB Output is correct
31 Correct 39 ms 4216 KB Output is correct
32 Correct 3 ms 380 KB Output is correct
33 Correct 33 ms 2296 KB Output is correct
34 Correct 50 ms 4600 KB Output is correct
35 Correct 8 ms 760 KB Output is correct
36 Correct 32 ms 3064 KB Output is correct
37 Correct 45 ms 3564 KB Output is correct
38 Correct 52 ms 4856 KB Output is correct
39 Correct 16 ms 1912 KB Output is correct
40 Correct 3 ms 504 KB Output is correct
41 Correct 141 ms 4984 KB Output is correct
42 Correct 59 ms 5624 KB Output is correct
43 Correct 88 ms 4984 KB Output is correct
44 Correct 57 ms 5456 KB Output is correct
45 Correct 51 ms 5752 KB Output is correct
46 Correct 155 ms 5496 KB Output is correct
47 Correct 45 ms 5112 KB Output is correct
48 Correct 72 ms 5240 KB Output is correct
49 Correct 52 ms 4984 KB Output is correct
50 Correct 652 ms 5368 KB Output is correct
51 Correct 694 ms 5752 KB Output is correct
52 Correct 640 ms 5368 KB Output is correct
53 Correct 677 ms 5624 KB Output is correct
54 Correct 627 ms 5240 KB Output is correct
55 Correct 721 ms 5880 KB Output is correct
56 Correct 612 ms 5160 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 33 ms 3832 KB Output is correct
10 Correct 11 ms 1272 KB Output is correct
11 Correct 22 ms 2556 KB Output is correct
12 Correct 24 ms 2616 KB Output is correct
13 Correct 30 ms 3384 KB Output is correct
14 Correct 20 ms 2296 KB Output is correct
15 Correct 6 ms 760 KB Output is correct
16 Correct 20 ms 2320 KB Output is correct
17 Correct 49 ms 5240 KB Output is correct
18 Correct 28 ms 3064 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 380 KB Output is correct
22 Correct 3 ms 376 KB Output is correct
23 Correct 3 ms 376 KB Output is correct
24 Correct 3 ms 376 KB Output is correct
25 Correct 3 ms 376 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 376 KB Output is correct
30 Correct 3 ms 376 KB Output is correct
31 Correct 3 ms 376 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 3 ms 376 KB Output is correct
34 Correct 17 ms 1656 KB Output is correct
35 Correct 38 ms 4304 KB Output is correct
36 Correct 55 ms 5112 KB Output is correct
37 Correct 176 ms 4600 KB Output is correct
38 Correct 221 ms 5112 KB Output is correct
39 Correct 39 ms 4216 KB Output is correct
40 Correct 3 ms 380 KB Output is correct
41 Correct 33 ms 2296 KB Output is correct
42 Correct 50 ms 4600 KB Output is correct
43 Correct 8 ms 760 KB Output is correct
44 Correct 32 ms 3064 KB Output is correct
45 Correct 45 ms 3564 KB Output is correct
46 Correct 52 ms 4856 KB Output is correct
47 Correct 16 ms 1912 KB Output is correct
48 Correct 3 ms 504 KB Output is correct
49 Correct 141 ms 4984 KB Output is correct
50 Correct 59 ms 5624 KB Output is correct
51 Correct 88 ms 4984 KB Output is correct
52 Correct 57 ms 5456 KB Output is correct
53 Correct 51 ms 5752 KB Output is correct
54 Correct 155 ms 5496 KB Output is correct
55 Correct 45 ms 5112 KB Output is correct
56 Correct 72 ms 5240 KB Output is correct
57 Correct 52 ms 4984 KB Output is correct
58 Correct 652 ms 5368 KB Output is correct
59 Correct 694 ms 5752 KB Output is correct
60 Correct 640 ms 5368 KB Output is correct
61 Correct 677 ms 5624 KB Output is correct
62 Correct 627 ms 5240 KB Output is correct
63 Correct 721 ms 5880 KB Output is correct
64 Correct 612 ms 5160 KB Output is correct
65 Correct 2 ms 504 KB Output is correct
66 Incorrect 2 ms 376 KB Output isn't correct
67 Halted 0 ms 0 KB -