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Submission #539771

# Submission time Handle Problem Language Result Execution time Memory
539771 2022-03-19T07:08:20 Z LittleCube IOI Fever (JOI21_fever) C++14
5 / 100
 6 ms 468 KB 
#include <bits/stdc++.h>
#define ll long long
#define pii pair<int, int>
#define pll pair<ll, ll>
#define F first
#define S second
using namespace std;

int N, ans;
pll p[8];

signed main()
{
    ios::sync_with_stdio(0), cin.tie(0);
    cin >> N;
    assert(N <= 7);
    for (int i = 0; i < N; i++)
        cin >> p[i].F >> p[i].S;
    for (int mask = 0; mask < (1 << N); mask++)
        for (int dmask = 0; dmask < (1 << N); dmask++)
        {
            ll dx[8] = {}, dy[8] = {}, t[8];
            int res = 0;
            for (int i = 0; i < N; i++)
            {
                t[i] = 1e18;
                if ((mask >> i) & 1)
                    ((dmask >> i) & 1 ? dx : dy)[i] = 1;
                else
                    ((dmask >> i) & 1 ? dx : dy)[i] = -1;
            }
            t[0] = 0;
            for (int a = 0; a < N; a++)
            {
                int cur = -1;
                for (int i = 0; i < N; i++)
                    if (t[i] >= 0 && t[i] <= 1e17)
                    {
                        if (cur == -1 || t[i] < t[cur])
                            cur = i;
                    }
                if (cur == -1)
                    break;
                res++;
                for (int i = 0; i < N; i++)
                    if (abs(dx[cur]) ^ abs(dx[i]) && abs(dy[cur]) ^ abs(dy[i]) && (p[i].F - p[cur].F) / (dx[cur] - dx[i]) == (p[i].S - p[cur].S) / (dy[cur] - dy[i]) && (p[i].S - p[cur].S) / (dy[cur] - dy[i]) >= t[cur])
                        t[i] = min(t[i], (p[i].F - p[cur].F) / (dx[cur] - dx[i]));
                t[cur] = -1;
            }
            ans = max(ans, res);
        }
    cout << ans << '\n';
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 352 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 324 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 2 ms 212 KB Output is correct
16 Correct 3 ms 212 KB Output is correct
17 Correct 3 ms 212 KB Output is correct
18 Correct 4 ms 212 KB Output is correct
19 Correct 3 ms 212 KB Output is correct
20 Correct 4 ms 212 KB Output is correct
21 Correct 4 ms 348 KB Output is correct
22 Correct 3 ms 212 KB Output is correct
23 Correct 4 ms 212 KB Output is correct
24 Correct 4 ms 212 KB Output is correct
25 Correct 5 ms 212 KB Output is correct
26 Correct 6 ms 212 KB Output is correct
27 Correct 5 ms 212 KB Output is correct
28 Correct 3 ms 212 KB Output is correct
29 Correct 3 ms 212 KB Output is correct
30 Correct 1 ms 328 KB Output is correct
31 Correct 4 ms 212 KB Output is correct
32 Correct 3 ms 212 KB Output is correct

Subtask #2
0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 352 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 324 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 2 ms 212 KB Output is correct
16 Correct 3 ms 212 KB Output is correct
17 Correct 3 ms 212 KB Output is correct
18 Correct 4 ms 212 KB Output is correct
19 Correct 3 ms 212 KB Output is correct
20 Correct 4 ms 212 KB Output is correct
21 Correct 4 ms 348 KB Output is correct
22 Correct 3 ms 212 KB Output is correct
23 Correct 4 ms 212 KB Output is correct
24 Correct 4 ms 212 KB Output is correct
25 Correct 5 ms 212 KB Output is correct
26 Correct 6 ms 212 KB Output is correct
27 Correct 5 ms 212 KB Output is correct
28 Correct 3 ms 212 KB Output is correct
29 Correct 3 ms 212 KB Output is correct
30 Correct 1 ms 328 KB Output is correct
31 Correct 4 ms 212 KB Output is correct
32 Correct 3 ms 212 KB Output is correct
33 Runtime error 1 ms 468 KB Execution killed with signal 6
34 Halted 0 ms 0 KB -

Subtask #3
0 / 6.0

# Verdict Execution time Memory Grader output
1 Runtime error 2 ms 468 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 352 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 324 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 2 ms 212 KB Output is correct
16 Correct 3 ms 212 KB Output is correct
17 Correct 3 ms 212 KB Output is correct
18 Correct 4 ms 212 KB Output is correct
19 Correct 3 ms 212 KB Output is correct
20 Correct 4 ms 212 KB Output is correct
21 Correct 4 ms 348 KB Output is correct
22 Correct 3 ms 212 KB Output is correct
23 Correct 4 ms 212 KB Output is correct
24 Correct 4 ms 212 KB Output is correct
25 Correct 5 ms 212 KB Output is correct
26 Correct 6 ms 212 KB Output is correct
27 Correct 5 ms 212 KB Output is correct
28 Correct 3 ms 212 KB Output is correct
29 Correct 3 ms 212 KB Output is correct
30 Correct 1 ms 328 KB Output is correct
31 Correct 4 ms 212 KB Output is correct
32 Correct 3 ms 212 KB Output is correct
33 Runtime error 1 ms 468 KB Execution killed with signal 6
34 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 352 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 324 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 2 ms 212 KB Output is correct
16 Correct 3 ms 212 KB Output is correct
17 Correct 3 ms 212 KB Output is correct
18 Correct 4 ms 212 KB Output is correct
19 Correct 3 ms 212 KB Output is correct
20 Correct 4 ms 212 KB Output is correct
21 Correct 4 ms 348 KB Output is correct
22 Correct 3 ms 212 KB Output is correct
23 Correct 4 ms 212 KB Output is correct
24 Correct 4 ms 212 KB Output is correct
25 Correct 5 ms 212 KB Output is correct
26 Correct 6 ms 212 KB Output is correct
27 Correct 5 ms 212 KB Output is correct
28 Correct 3 ms 212 KB Output is correct
29 Correct 3 ms 212 KB Output is correct
30 Correct 1 ms 328 KB Output is correct
31 Correct 4 ms 212 KB Output is correct
32 Correct 3 ms 212 KB Output is correct
33 Runtime error 1 ms 468 KB Execution killed with signal 6
34 Halted 0 ms 0 KB -

Subtask #6
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 352 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 324 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 2 ms 212 KB Output is correct
16 Correct 3 ms 212 KB Output is correct
17 Correct 3 ms 212 KB Output is correct
18 Correct 4 ms 212 KB Output is correct
19 Correct 3 ms 212 KB Output is correct
20 Correct 4 ms 212 KB Output is correct
21 Correct 4 ms 348 KB Output is correct
22 Correct 3 ms 212 KB Output is correct
23 Correct 4 ms 212 KB Output is correct
24 Correct 4 ms 212 KB Output is correct
25 Correct 5 ms 212 KB Output is correct
26 Correct 6 ms 212 KB Output is correct
27 Correct 5 ms 212 KB Output is correct
28 Correct 3 ms 212 KB Output is correct
29 Correct 3 ms 212 KB Output is correct
30 Correct 1 ms 328 KB Output is correct
31 Correct 4 ms 212 KB Output is correct
32 Correct 3 ms 212 KB Output is correct
33 Runtime error 1 ms 468 KB Execution killed with signal 6
34 Halted 0 ms 0 KB -

Subtask #7
0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 352 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 320 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 324 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 324 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 2 ms 212 KB Output is correct
16 Correct 3 ms 212 KB Output is correct
17 Correct 3 ms 212 KB Output is correct
18 Correct 4 ms 212 KB Output is correct
19 Correct 3 ms 212 KB Output is correct
20 Correct 4 ms 212 KB Output is correct
21 Correct 4 ms 348 KB Output is correct
22 Correct 3 ms 212 KB Output is correct
23 Correct 4 ms 212 KB Output is correct
24 Correct 4 ms 212 KB Output is correct
25 Correct 5 ms 212 KB Output is correct
26 Correct 6 ms 212 KB Output is correct
27 Correct 5 ms 212 KB Output is correct
28 Correct 3 ms 212 KB Output is correct
29 Correct 3 ms 212 KB Output is correct
30 Correct 1 ms 328 KB Output is correct
31 Correct 4 ms 212 KB Output is correct
32 Correct 3 ms 212 KB Output is correct
33 Runtime error 1 ms 468 KB Execution killed with signal 6
34 Halted 0 ms 0 KB -