Submission #120719

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
120719	2019-06-25T10:12:23 Z	youngyojun	Minerals (JOI19_minerals)	C++14	100 / 100	598 ms	5008 KB

minerals

#include "minerals.h"
#include <bits/stdc++.h>
#define eb emplace_back
#define sz(V) ((int)(V).size())
#define allv(V) ((V).begin()),((V).end())
#define INF (0x3f3f3f3f)
using namespace std;
typedef pair<int, int> pii;
mt19937 mtrd(time(0));

const int MAXN = 43055;

int __bf;
bool ask(int v) {
	int t = Query(v);
	bool ret = __bf != t;
	__bf = t;
	return ret;
}

int D[MAXN], OP[MAXN];

void f(vector<int> A, vector<int> B, bool flag) {
	int N = sz(A);
	if(!N) return;
	if(1 == N) {
		Answer(A[0], B[0]);
		return;
	}
	shuffle(allv(A), mtrd);
	shuffle(allv(B), mtrd);

	int M = OP[N];
	vector<int> AL, AR, BL, BR;
	for(int i = 0; i < M; i++) {
		AL.eb(A[i]);
		ask(A[i]);
	}
	for(int i = M; i < N; i++) AR.eb(A[i]);

	int oi = 0;
	for(int i; sz(BL) < M && sz(BR) < N-M && oi < N; oi++) {
		i = B[oi];
		((flag ^ ask(i)) ? BR : BL).eb(i);
	}
	for(; oi < N; oi++) (sz(BL) == M ? BR : BL).eb(B[oi]);

	f(AL, BL, !flag);
	f(AR, BR, flag);
}

void precal() {
	D[1] = 0;
	D[2] = 2; OP[2] = 1;
	for(int i = 3; i <= 43000; i++) {
		D[i] = INF; OP[i] = -1;
		for(int j = 1; j*2 <= i; j++) {
			int t = D[j] + D[i-j] + (i+j-1);
			if(D[i] <= t) continue;
			D[i] = t;
			OP[i] = j;
		}
	}
}

void Solve(int N) {
	precal();

	vector<int> A, B, O;
	for(int i = 1; i <= N*2; i++) O.eb(i);
	shuffle(allv(O), mtrd);

	int oi = 0;
	for(int i; sz(A) < N && oi < N*2; oi++) {
		i = O[oi];
		(ask(i) ? A : B).eb(i);
	}
	for(; oi < N*2; oi++) B.eb(O[oi]);

	f(A, B, true);
}

Subtask #1
6.0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	484 ms	752 KB	Output is correct
2	Correct	492 ms	636 KB	Output is correct
3	Correct	508 ms	760 KB	Output is correct
4	Correct	484 ms	656 KB	Output is correct

Subtask #2
25.0 / 25.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	486 ms	644 KB	Output is correct
2	Correct	492 ms	868 KB	Output is correct
3	Correct	502 ms	960 KB	Output is correct
4	Correct	498 ms	1400 KB	Output is correct
5	Correct	518 ms	2056 KB	Output is correct

Subtask #3
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	484 ms	752 KB	Output is correct
2	Correct	492 ms	636 KB	Output is correct
3	Correct	508 ms	760 KB	Output is correct
4	Correct	484 ms	656 KB	Output is correct
5	Correct	486 ms	644 KB	Output is correct
6	Correct	492 ms	868 KB	Output is correct
7	Correct	502 ms	960 KB	Output is correct
8	Correct	498 ms	1400 KB	Output is correct
9	Correct	518 ms	2056 KB	Output is correct
10	Correct	486 ms	680 KB	Output is correct
11	Correct	508 ms	1672 KB	Output is correct
12	Correct	512 ms	2176 KB	Output is correct
13	Correct	515 ms	2224 KB	Output is correct
14	Correct	515 ms	2088 KB	Output is correct

Subtask #4
30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	484 ms	752 KB	Output is correct
2	Correct	492 ms	636 KB	Output is correct
3	Correct	508 ms	760 KB	Output is correct
4	Correct	484 ms	656 KB	Output is correct
5	Correct	486 ms	644 KB	Output is correct
6	Correct	492 ms	868 KB	Output is correct
7	Correct	502 ms	960 KB	Output is correct
8	Correct	498 ms	1400 KB	Output is correct
9	Correct	518 ms	2056 KB	Output is correct
10	Correct	486 ms	680 KB	Output is correct
11	Correct	508 ms	1672 KB	Output is correct
12	Correct	512 ms	2176 KB	Output is correct
13	Correct	515 ms	2224 KB	Output is correct
14	Correct	515 ms	2088 KB	Output is correct
15	Correct	570 ms	4420 KB	Output is correct
16	Correct	575 ms	4504 KB	Output is correct
17	Correct	570 ms	4504 KB	Output is correct
18	Correct	571 ms	4288 KB	Output is correct

Subtask #5
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	484 ms	752 KB	Output is correct
2	Correct	492 ms	636 KB	Output is correct
3	Correct	508 ms	760 KB	Output is correct
4	Correct	484 ms	656 KB	Output is correct
5	Correct	486 ms	644 KB	Output is correct
6	Correct	492 ms	868 KB	Output is correct
7	Correct	502 ms	960 KB	Output is correct
8	Correct	498 ms	1400 KB	Output is correct
9	Correct	518 ms	2056 KB	Output is correct
10	Correct	486 ms	680 KB	Output is correct
11	Correct	508 ms	1672 KB	Output is correct
12	Correct	512 ms	2176 KB	Output is correct
13	Correct	515 ms	2224 KB	Output is correct
14	Correct	515 ms	2088 KB	Output is correct
15	Correct	570 ms	4420 KB	Output is correct
16	Correct	575 ms	4504 KB	Output is correct
17	Correct	570 ms	4504 KB	Output is correct
18	Correct	571 ms	4288 KB	Output is correct
19	Correct	575 ms	4736 KB	Output is correct
20	Correct	577 ms	4568 KB	Output is correct
21	Correct	592 ms	4552 KB	Output is correct
22	Correct	577 ms	4444 KB	Output is correct

Subtask #6
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	484 ms	752 KB	Output is correct
2	Correct	492 ms	636 KB	Output is correct
3	Correct	508 ms	760 KB	Output is correct
4	Correct	484 ms	656 KB	Output is correct
5	Correct	486 ms	644 KB	Output is correct
6	Correct	492 ms	868 KB	Output is correct
7	Correct	502 ms	960 KB	Output is correct
8	Correct	498 ms	1400 KB	Output is correct
9	Correct	518 ms	2056 KB	Output is correct
10	Correct	486 ms	680 KB	Output is correct
11	Correct	508 ms	1672 KB	Output is correct
12	Correct	512 ms	2176 KB	Output is correct
13	Correct	515 ms	2224 KB	Output is correct
14	Correct	515 ms	2088 KB	Output is correct
15	Correct	570 ms	4420 KB	Output is correct
16	Correct	575 ms	4504 KB	Output is correct
17	Correct	570 ms	4504 KB	Output is correct
18	Correct	571 ms	4288 KB	Output is correct
19	Correct	575 ms	4736 KB	Output is correct
20	Correct	577 ms	4568 KB	Output is correct
21	Correct	592 ms	4552 KB	Output is correct
22	Correct	577 ms	4444 KB	Output is correct
23	Correct	584 ms	4600 KB	Output is correct
24	Correct	584 ms	4724 KB	Output is correct
25	Correct	589 ms	4604 KB	Output is correct
26	Correct	587 ms	4596 KB	Output is correct

Subtask #7
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	484 ms	752 KB	Output is correct
2	Correct	492 ms	636 KB	Output is correct
3	Correct	508 ms	760 KB	Output is correct
4	Correct	484 ms	656 KB	Output is correct
5	Correct	486 ms	644 KB	Output is correct
6	Correct	492 ms	868 KB	Output is correct
7	Correct	502 ms	960 KB	Output is correct
8	Correct	498 ms	1400 KB	Output is correct
9	Correct	518 ms	2056 KB	Output is correct
10	Correct	486 ms	680 KB	Output is correct
11	Correct	508 ms	1672 KB	Output is correct
12	Correct	512 ms	2176 KB	Output is correct
13	Correct	515 ms	2224 KB	Output is correct
14	Correct	515 ms	2088 KB	Output is correct
15	Correct	570 ms	4420 KB	Output is correct
16	Correct	575 ms	4504 KB	Output is correct
17	Correct	570 ms	4504 KB	Output is correct
18	Correct	571 ms	4288 KB	Output is correct
19	Correct	575 ms	4736 KB	Output is correct
20	Correct	577 ms	4568 KB	Output is correct
21	Correct	592 ms	4552 KB	Output is correct
22	Correct	577 ms	4444 KB	Output is correct
23	Correct	584 ms	4600 KB	Output is correct
24	Correct	584 ms	4724 KB	Output is correct
25	Correct	589 ms	4604 KB	Output is correct
26	Correct	587 ms	4596 KB	Output is correct
27	Correct	577 ms	4616 KB	Output is correct
28	Correct	579 ms	4592 KB	Output is correct
29	Correct	578 ms	4696 KB	Output is correct
30	Correct	579 ms	4572 KB	Output is correct

Subtask #8
5.0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	484 ms	752 KB	Output is correct
2	Correct	492 ms	636 KB	Output is correct
3	Correct	508 ms	760 KB	Output is correct
4	Correct	484 ms	656 KB	Output is correct
5	Correct	486 ms	644 KB	Output is correct
6	Correct	492 ms	868 KB	Output is correct
7	Correct	502 ms	960 KB	Output is correct
8	Correct	498 ms	1400 KB	Output is correct
9	Correct	518 ms	2056 KB	Output is correct
10	Correct	486 ms	680 KB	Output is correct
11	Correct	508 ms	1672 KB	Output is correct
12	Correct	512 ms	2176 KB	Output is correct
13	Correct	515 ms	2224 KB	Output is correct
14	Correct	515 ms	2088 KB	Output is correct
15	Correct	570 ms	4420 KB	Output is correct
16	Correct	575 ms	4504 KB	Output is correct
17	Correct	570 ms	4504 KB	Output is correct
18	Correct	571 ms	4288 KB	Output is correct
19	Correct	575 ms	4736 KB	Output is correct
20	Correct	577 ms	4568 KB	Output is correct
21	Correct	592 ms	4552 KB	Output is correct
22	Correct	577 ms	4444 KB	Output is correct
23	Correct	584 ms	4600 KB	Output is correct
24	Correct	584 ms	4724 KB	Output is correct
25	Correct	589 ms	4604 KB	Output is correct
26	Correct	587 ms	4596 KB	Output is correct
27	Correct	577 ms	4616 KB	Output is correct
28	Correct	579 ms	4592 KB	Output is correct
29	Correct	578 ms	4696 KB	Output is correct
30	Correct	579 ms	4572 KB	Output is correct
31	Correct	594 ms	4780 KB	Output is correct
32	Correct	598 ms	4824 KB	Output is correct
33	Correct	598 ms	4752 KB	Output is correct
34	Correct	583 ms	4504 KB	Output is correct

Subtask #9
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	484 ms	752 KB	Output is correct
2	Correct	492 ms	636 KB	Output is correct
3	Correct	508 ms	760 KB	Output is correct
4	Correct	484 ms	656 KB	Output is correct
5	Correct	486 ms	644 KB	Output is correct
6	Correct	492 ms	868 KB	Output is correct
7	Correct	502 ms	960 KB	Output is correct
8	Correct	498 ms	1400 KB	Output is correct
9	Correct	518 ms	2056 KB	Output is correct
10	Correct	486 ms	680 KB	Output is correct
11	Correct	508 ms	1672 KB	Output is correct
12	Correct	512 ms	2176 KB	Output is correct
13	Correct	515 ms	2224 KB	Output is correct
14	Correct	515 ms	2088 KB	Output is correct
15	Correct	570 ms	4420 KB	Output is correct
16	Correct	575 ms	4504 KB	Output is correct
17	Correct	570 ms	4504 KB	Output is correct
18	Correct	571 ms	4288 KB	Output is correct
19	Correct	575 ms	4736 KB	Output is correct
20	Correct	577 ms	4568 KB	Output is correct
21	Correct	592 ms	4552 KB	Output is correct
22	Correct	577 ms	4444 KB	Output is correct
23	Correct	584 ms	4600 KB	Output is correct
24	Correct	584 ms	4724 KB	Output is correct
25	Correct	589 ms	4604 KB	Output is correct
26	Correct	587 ms	4596 KB	Output is correct
27	Correct	577 ms	4616 KB	Output is correct
28	Correct	579 ms	4592 KB	Output is correct
29	Correct	578 ms	4696 KB	Output is correct
30	Correct	579 ms	4572 KB	Output is correct
31	Correct	594 ms	4780 KB	Output is correct
32	Correct	598 ms	4824 KB	Output is correct
33	Correct	598 ms	4752 KB	Output is correct
34	Correct	583 ms	4504 KB	Output is correct
35	Correct	581 ms	4640 KB	Output is correct
36	Correct	589 ms	5008 KB	Output is correct
37	Correct	591 ms	4780 KB	Output is correct
38	Correct	578 ms	4596 KB	Output is correct

Submission #120719

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