Submission #542436

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
542436	2022-03-26T17:40:54 Z	two_sides	Minerals (JOI19_minerals)	C++17	100 / 100	61 ms	4372 KB

minerals

#include "minerals.h"
#include <bits/stdc++.h>


namespace {
    using namespace std;

    const int N = 43005;

    int cost[N], best[N], cur = 0;

    mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

    void Prepare() {
        cost[1] = 0; best[1] = 1;
        for (int i = 2; i < N; i++) {
            int j = best[i - 1];
            if (cost[i - j - 1] + cost[j + 1] +
            j + 1 < cost[i - j] + cost[j] + j) j++;
            cost[i] = cost[i - j] + cost[j] + j + i - 1;
            best[i] = j;
        }
    }

    void Split(vector<int> x, vector<int> y, bool f) {
        if (x.size() == 1)
            return Answer(x[0], y[0]);
        int n = x.size(), len = best[n];
        vector<int> nx[2], ny[2];
        for (int i = 0; i < len; i++) {
            nx[f ^ 1].push_back(x[i]);
            cur = Query(x[i]);
        }
        for (int i = len; i < n; i++)
            nx[f].push_back(x[i]);
        for (int i = 0; i < n; i++) {
            if (nx[0].size() == ny[0].size())
                ny[1].push_back(y[i]);
            else if (nx[1].size() == ny[1].size())
                ny[0].push_back(y[i]);
            else {
                int nxt = Query(y[i]);
                if (cur != nxt)
                    ny[1].push_back(y[i]);
                else ny[0].push_back(y[i]);
                cur = nxt;
            }
        }
        Split(nx[0], ny[0], 0);
        Split(nx[1], ny[1], 1);
    }
}

void Solve(int n) {
    Prepare(); vector<int> x, y;
    for (int i = 1; i <= 2 * n; i++) {
        
        int nxt = Query(i);
        if (nxt != cur) x.push_back(i);
        else y.push_back(i);
        cur = nxt;
    }
    Split(x, y, 0);
}

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	592 KB	Output is correct
2	Correct	1 ms	592 KB	Output is correct
3	Correct	1 ms	592 KB	Output is correct
4	Correct	1 ms	592 KB	Output is correct

Subtask #2
25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	720 KB	Output is correct
2	Correct	2 ms	720 KB	Output is correct
3	Correct	4 ms	976 KB	Output is correct
4	Correct	9 ms	1364 KB	Output is correct
5	Correct	16 ms	1872 KB	Output is correct

Subtask #3
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	592 KB	Output is correct
2	Correct	1 ms	592 KB	Output is correct
3	Correct	1 ms	592 KB	Output is correct
4	Correct	1 ms	592 KB	Output is correct
5	Correct	2 ms	720 KB	Output is correct
6	Correct	2 ms	720 KB	Output is correct
7	Correct	4 ms	976 KB	Output is correct
8	Correct	9 ms	1364 KB	Output is correct
9	Correct	16 ms	1872 KB	Output is correct
10	Correct	1 ms	720 KB	Output is correct
11	Correct	10 ms	1536 KB	Output is correct
12	Correct	17 ms	1944 KB	Output is correct
13	Correct	13 ms	1988 KB	Output is correct
14	Correct	13 ms	1948 KB	Output is correct

Subtask #4
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	592 KB	Output is correct
2	Correct	1 ms	592 KB	Output is correct
3	Correct	1 ms	592 KB	Output is correct
4	Correct	1 ms	592 KB	Output is correct
5	Correct	2 ms	720 KB	Output is correct
6	Correct	2 ms	720 KB	Output is correct
7	Correct	4 ms	976 KB	Output is correct
8	Correct	9 ms	1364 KB	Output is correct
9	Correct	16 ms	1872 KB	Output is correct
10	Correct	1 ms	720 KB	Output is correct
11	Correct	10 ms	1536 KB	Output is correct
12	Correct	17 ms	1944 KB	Output is correct
13	Correct	13 ms	1988 KB	Output is correct
14	Correct	13 ms	1948 KB	Output is correct
15	Correct	43 ms	4116 KB	Output is correct
16	Correct	42 ms	4056 KB	Output is correct
17	Correct	31 ms	4064 KB	Output is correct
18	Correct	36 ms	3912 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	592 KB	Output is correct
2	Correct	1 ms	592 KB	Output is correct
3	Correct	1 ms	592 KB	Output is correct
4	Correct	1 ms	592 KB	Output is correct
5	Correct	2 ms	720 KB	Output is correct
6	Correct	2 ms	720 KB	Output is correct
7	Correct	4 ms	976 KB	Output is correct
8	Correct	9 ms	1364 KB	Output is correct
9	Correct	16 ms	1872 KB	Output is correct
10	Correct	1 ms	720 KB	Output is correct
11	Correct	10 ms	1536 KB	Output is correct
12	Correct	17 ms	1944 KB	Output is correct
13	Correct	13 ms	1988 KB	Output is correct
14	Correct	13 ms	1948 KB	Output is correct
15	Correct	43 ms	4116 KB	Output is correct
16	Correct	42 ms	4056 KB	Output is correct
17	Correct	31 ms	4064 KB	Output is correct
18	Correct	36 ms	3912 KB	Output is correct
19	Correct	46 ms	4064 KB	Output is correct
20	Correct	57 ms	4172 KB	Output is correct
21	Correct	45 ms	4152 KB	Output is correct
22	Correct	35 ms	4040 KB	Output is correct

Subtask #6
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	592 KB	Output is correct
2	Correct	1 ms	592 KB	Output is correct
3	Correct	1 ms	592 KB	Output is correct
4	Correct	1 ms	592 KB	Output is correct
5	Correct	2 ms	720 KB	Output is correct
6	Correct	2 ms	720 KB	Output is correct
7	Correct	4 ms	976 KB	Output is correct
8	Correct	9 ms	1364 KB	Output is correct
9	Correct	16 ms	1872 KB	Output is correct
10	Correct	1 ms	720 KB	Output is correct
11	Correct	10 ms	1536 KB	Output is correct
12	Correct	17 ms	1944 KB	Output is correct
13	Correct	13 ms	1988 KB	Output is correct
14	Correct	13 ms	1948 KB	Output is correct
15	Correct	43 ms	4116 KB	Output is correct
16	Correct	42 ms	4056 KB	Output is correct
17	Correct	31 ms	4064 KB	Output is correct
18	Correct	36 ms	3912 KB	Output is correct
19	Correct	46 ms	4064 KB	Output is correct
20	Correct	57 ms	4172 KB	Output is correct
21	Correct	45 ms	4152 KB	Output is correct
22	Correct	35 ms	4040 KB	Output is correct
23	Correct	61 ms	4224 KB	Output is correct
24	Correct	46 ms	4212 KB	Output is correct
25	Correct	35 ms	4200 KB	Output is correct
26	Correct	38 ms	4064 KB	Output is correct

Subtask #7
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	592 KB	Output is correct
2	Correct	1 ms	592 KB	Output is correct
3	Correct	1 ms	592 KB	Output is correct
4	Correct	1 ms	592 KB	Output is correct
5	Correct	2 ms	720 KB	Output is correct
6	Correct	2 ms	720 KB	Output is correct
7	Correct	4 ms	976 KB	Output is correct
8	Correct	9 ms	1364 KB	Output is correct
9	Correct	16 ms	1872 KB	Output is correct
10	Correct	1 ms	720 KB	Output is correct
11	Correct	10 ms	1536 KB	Output is correct
12	Correct	17 ms	1944 KB	Output is correct
13	Correct	13 ms	1988 KB	Output is correct
14	Correct	13 ms	1948 KB	Output is correct
15	Correct	43 ms	4116 KB	Output is correct
16	Correct	42 ms	4056 KB	Output is correct
17	Correct	31 ms	4064 KB	Output is correct
18	Correct	36 ms	3912 KB	Output is correct
19	Correct	46 ms	4064 KB	Output is correct
20	Correct	57 ms	4172 KB	Output is correct
21	Correct	45 ms	4152 KB	Output is correct
22	Correct	35 ms	4040 KB	Output is correct
23	Correct	61 ms	4224 KB	Output is correct
24	Correct	46 ms	4212 KB	Output is correct
25	Correct	35 ms	4200 KB	Output is correct
26	Correct	38 ms	4064 KB	Output is correct
27	Correct	48 ms	4276 KB	Output is correct
28	Correct	56 ms	4292 KB	Output is correct
29	Correct	37 ms	4316 KB	Output is correct
30	Correct	35 ms	4156 KB	Output is correct

Subtask #8
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	592 KB	Output is correct
2	Correct	1 ms	592 KB	Output is correct
3	Correct	1 ms	592 KB	Output is correct
4	Correct	1 ms	592 KB	Output is correct
5	Correct	2 ms	720 KB	Output is correct
6	Correct	2 ms	720 KB	Output is correct
7	Correct	4 ms	976 KB	Output is correct
8	Correct	9 ms	1364 KB	Output is correct
9	Correct	16 ms	1872 KB	Output is correct
10	Correct	1 ms	720 KB	Output is correct
11	Correct	10 ms	1536 KB	Output is correct
12	Correct	17 ms	1944 KB	Output is correct
13	Correct	13 ms	1988 KB	Output is correct
14	Correct	13 ms	1948 KB	Output is correct
15	Correct	43 ms	4116 KB	Output is correct
16	Correct	42 ms	4056 KB	Output is correct
17	Correct	31 ms	4064 KB	Output is correct
18	Correct	36 ms	3912 KB	Output is correct
19	Correct	46 ms	4064 KB	Output is correct
20	Correct	57 ms	4172 KB	Output is correct
21	Correct	45 ms	4152 KB	Output is correct
22	Correct	35 ms	4040 KB	Output is correct
23	Correct	61 ms	4224 KB	Output is correct
24	Correct	46 ms	4212 KB	Output is correct
25	Correct	35 ms	4200 KB	Output is correct
26	Correct	38 ms	4064 KB	Output is correct
27	Correct	48 ms	4276 KB	Output is correct
28	Correct	56 ms	4292 KB	Output is correct
29	Correct	37 ms	4316 KB	Output is correct
30	Correct	35 ms	4156 KB	Output is correct
31	Correct	49 ms	4360 KB	Output is correct
32	Correct	54 ms	4372 KB	Output is correct
33	Correct	44 ms	4356 KB	Output is correct
34	Correct	43 ms	4108 KB	Output is correct

Subtask #9
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	592 KB	Output is correct
2	Correct	1 ms	592 KB	Output is correct
3	Correct	1 ms	592 KB	Output is correct
4	Correct	1 ms	592 KB	Output is correct
5	Correct	2 ms	720 KB	Output is correct
6	Correct	2 ms	720 KB	Output is correct
7	Correct	4 ms	976 KB	Output is correct
8	Correct	9 ms	1364 KB	Output is correct
9	Correct	16 ms	1872 KB	Output is correct
10	Correct	1 ms	720 KB	Output is correct
11	Correct	10 ms	1536 KB	Output is correct
12	Correct	17 ms	1944 KB	Output is correct
13	Correct	13 ms	1988 KB	Output is correct
14	Correct	13 ms	1948 KB	Output is correct
15	Correct	43 ms	4116 KB	Output is correct
16	Correct	42 ms	4056 KB	Output is correct
17	Correct	31 ms	4064 KB	Output is correct
18	Correct	36 ms	3912 KB	Output is correct
19	Correct	46 ms	4064 KB	Output is correct
20	Correct	57 ms	4172 KB	Output is correct
21	Correct	45 ms	4152 KB	Output is correct
22	Correct	35 ms	4040 KB	Output is correct
23	Correct	61 ms	4224 KB	Output is correct
24	Correct	46 ms	4212 KB	Output is correct
25	Correct	35 ms	4200 KB	Output is correct
26	Correct	38 ms	4064 KB	Output is correct
27	Correct	48 ms	4276 KB	Output is correct
28	Correct	56 ms	4292 KB	Output is correct
29	Correct	37 ms	4316 KB	Output is correct
30	Correct	35 ms	4156 KB	Output is correct
31	Correct	49 ms	4360 KB	Output is correct
32	Correct	54 ms	4372 KB	Output is correct
33	Correct	44 ms	4356 KB	Output is correct
34	Correct	43 ms	4108 KB	Output is correct
35	Correct	54 ms	4344 KB	Output is correct
36	Correct	61 ms	4296 KB	Output is correct
37	Correct	41 ms	4372 KB	Output is correct
38	Correct	49 ms	4208 KB	Output is correct

Submission #542436

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