답안 #411236

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
411236	2021-05-24T18:41:32 Z	amoo_safar	Minerals (JOI19_minerals)	C++17	100 / 100	83 ms	3892 KB

minerals

#include "minerals.h"

#include <bits/stdc++.h>
#define pb push_back

using namespace std;

const int N = 1e5;

int mk[N];
int la = 0;
bool Ask(int u){
	mk[u] ^= 1;
	int res = Query(u);
	bool ch = la != res;
	la = res;
	return ch;
}

int norm(vector<int>& A){
	int c0 = 0;
	int c1 = 0;
	int n = A.size();
	for(auto x : A)
		(mk[x] ? c1 : c0) ++;
	return (n / 2) - min(c0, c1);
}

void normalize(vector<int>& A){
	int c0 = 0;
	int c1 = 0;
	int n = A.size();
	for(auto x : A)
		(mk[x] ? c1 : c0) ++;
	int mn = 0, cnt = c0;
	if(c0 > c1) mn = 1, cnt = c1;
	for(auto x : A){
		if(cnt == (n / 2)) break;
		if(mn == mk[x]) continue;
		cnt ++;
		Ask(x);
	}
}

void solve(vector<int> A, vector<int> B){
	assert(A.size() == B.size());
	// random_shuffle(A.begin(), A.end());
	// random_shuffle(B.begin(), B.end());
	int n = A.size();
	if(n == 1){
		Answer(A[0], B[0]);
		return ;
	}
	if(norm(A) > norm(B)) swap(A, B);
	normalize(A);
	sort(A.begin(), A.end(), [&](int i, int j){
		return mk[i] > mk[j];
	});

	int sz = 0;
	for(auto x : A) if(mk[x]) sz ++;

	vector<int> A2[2], B2[2];
	for(int i = 0; i < sz; i++) A2[0].pb(A[i]);
	for(int i = sz; i < n; i++) A2[1].pb(A[i]);

	for(auto x : B){
		if(A2[0].size() == B2[0].size()){
			B2[1].pb(x);
			continue;
		}
		if(A2[1].size() == B2[1].size()){
			B2[0].pb(x);
			continue;
		}
		bool fl = Ask(x);
		B2[fl ? 1 : 0].pb(x);
	}
	solve(A2[0], B2[0]);
	solve(A2[1], B2[1]);
}

void Solve(int n) {
	vector<int> A, B;
	for(int i = 1; i <= n + n; i++)
		if(Ask(i))
			A.pb(i);
		else
			B.pb(i);
	solve(A, B);
}

Subtask #1
6.0 / 6.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	200 KB	Output is correct
2	Correct	1 ms	200 KB	Output is correct
3	Correct	1 ms	200 KB	Output is correct
4	Correct	1 ms	200 KB	Output is correct

Subtask #2
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	328 KB	Output is correct
2	Correct	3 ms	328 KB	Output is correct
3	Correct	5 ms	584 KB	Output is correct
4	Correct	15 ms	840 KB	Output is correct
5	Correct	27 ms	1540 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	200 KB	Output is correct
2	Correct	1 ms	200 KB	Output is correct
3	Correct	1 ms	200 KB	Output is correct
4	Correct	1 ms	200 KB	Output is correct
5	Correct	2 ms	328 KB	Output is correct
6	Correct	3 ms	328 KB	Output is correct
7	Correct	5 ms	584 KB	Output is correct
8	Correct	15 ms	840 KB	Output is correct
9	Correct	27 ms	1540 KB	Output is correct
10	Correct	2 ms	328 KB	Output is correct
11	Correct	16 ms	1096 KB	Output is correct
12	Correct	22 ms	1472 KB	Output is correct
13	Correct	19 ms	1516 KB	Output is correct
14	Correct	22 ms	1396 KB	Output is correct

Subtask #4
30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	200 KB	Output is correct
2	Correct	1 ms	200 KB	Output is correct
3	Correct	1 ms	200 KB	Output is correct
4	Correct	1 ms	200 KB	Output is correct
5	Correct	2 ms	328 KB	Output is correct
6	Correct	3 ms	328 KB	Output is correct
7	Correct	5 ms	584 KB	Output is correct
8	Correct	15 ms	840 KB	Output is correct
9	Correct	27 ms	1540 KB	Output is correct
10	Correct	2 ms	328 KB	Output is correct
11	Correct	16 ms	1096 KB	Output is correct
12	Correct	22 ms	1472 KB	Output is correct
13	Correct	19 ms	1516 KB	Output is correct
14	Correct	22 ms	1396 KB	Output is correct
15	Correct	66 ms	3500 KB	Output is correct
16	Correct	72 ms	3528 KB	Output is correct
17	Correct	58 ms	3260 KB	Output is correct
18	Correct	54 ms	3336 KB	Output is correct

Subtask #5
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	200 KB	Output is correct
2	Correct	1 ms	200 KB	Output is correct
3	Correct	1 ms	200 KB	Output is correct
4	Correct	1 ms	200 KB	Output is correct
5	Correct	2 ms	328 KB	Output is correct
6	Correct	3 ms	328 KB	Output is correct
7	Correct	5 ms	584 KB	Output is correct
8	Correct	15 ms	840 KB	Output is correct
9	Correct	27 ms	1540 KB	Output is correct
10	Correct	2 ms	328 KB	Output is correct
11	Correct	16 ms	1096 KB	Output is correct
12	Correct	22 ms	1472 KB	Output is correct
13	Correct	19 ms	1516 KB	Output is correct
14	Correct	22 ms	1396 KB	Output is correct
15	Correct	66 ms	3500 KB	Output is correct
16	Correct	72 ms	3528 KB	Output is correct
17	Correct	58 ms	3260 KB	Output is correct
18	Correct	54 ms	3336 KB	Output is correct
19	Correct	61 ms	3460 KB	Output is correct
20	Correct	62 ms	3584 KB	Output is correct
21	Correct	59 ms	3352 KB	Output is correct
22	Correct	56 ms	3188 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	200 KB	Output is correct
2	Correct	1 ms	200 KB	Output is correct
3	Correct	1 ms	200 KB	Output is correct
4	Correct	1 ms	200 KB	Output is correct
5	Correct	2 ms	328 KB	Output is correct
6	Correct	3 ms	328 KB	Output is correct
7	Correct	5 ms	584 KB	Output is correct
8	Correct	15 ms	840 KB	Output is correct
9	Correct	27 ms	1540 KB	Output is correct
10	Correct	2 ms	328 KB	Output is correct
11	Correct	16 ms	1096 KB	Output is correct
12	Correct	22 ms	1472 KB	Output is correct
13	Correct	19 ms	1516 KB	Output is correct
14	Correct	22 ms	1396 KB	Output is correct
15	Correct	66 ms	3500 KB	Output is correct
16	Correct	72 ms	3528 KB	Output is correct
17	Correct	58 ms	3260 KB	Output is correct
18	Correct	54 ms	3336 KB	Output is correct
19	Correct	61 ms	3460 KB	Output is correct
20	Correct	62 ms	3584 KB	Output is correct
21	Correct	59 ms	3352 KB	Output is correct
22	Correct	56 ms	3188 KB	Output is correct
23	Correct	67 ms	3664 KB	Output is correct
24	Correct	64 ms	3648 KB	Output is correct
25	Correct	57 ms	3504 KB	Output is correct
26	Correct	64 ms	3264 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	200 KB	Output is correct
2	Correct	1 ms	200 KB	Output is correct
3	Correct	1 ms	200 KB	Output is correct
4	Correct	1 ms	200 KB	Output is correct
5	Correct	2 ms	328 KB	Output is correct
6	Correct	3 ms	328 KB	Output is correct
7	Correct	5 ms	584 KB	Output is correct
8	Correct	15 ms	840 KB	Output is correct
9	Correct	27 ms	1540 KB	Output is correct
10	Correct	2 ms	328 KB	Output is correct
11	Correct	16 ms	1096 KB	Output is correct
12	Correct	22 ms	1472 KB	Output is correct
13	Correct	19 ms	1516 KB	Output is correct
14	Correct	22 ms	1396 KB	Output is correct
15	Correct	66 ms	3500 KB	Output is correct
16	Correct	72 ms	3528 KB	Output is correct
17	Correct	58 ms	3260 KB	Output is correct
18	Correct	54 ms	3336 KB	Output is correct
19	Correct	61 ms	3460 KB	Output is correct
20	Correct	62 ms	3584 KB	Output is correct
21	Correct	59 ms	3352 KB	Output is correct
22	Correct	56 ms	3188 KB	Output is correct
23	Correct	67 ms	3664 KB	Output is correct
24	Correct	64 ms	3648 KB	Output is correct
25	Correct	57 ms	3504 KB	Output is correct
26	Correct	64 ms	3264 KB	Output is correct
27	Correct	82 ms	3604 KB	Output is correct
28	Correct	65 ms	3548 KB	Output is correct
29	Correct	57 ms	3616 KB	Output is correct
30	Correct	64 ms	3532 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	200 KB	Output is correct
2	Correct	1 ms	200 KB	Output is correct
3	Correct	1 ms	200 KB	Output is correct
4	Correct	1 ms	200 KB	Output is correct
5	Correct	2 ms	328 KB	Output is correct
6	Correct	3 ms	328 KB	Output is correct
7	Correct	5 ms	584 KB	Output is correct
8	Correct	15 ms	840 KB	Output is correct
9	Correct	27 ms	1540 KB	Output is correct
10	Correct	2 ms	328 KB	Output is correct
11	Correct	16 ms	1096 KB	Output is correct
12	Correct	22 ms	1472 KB	Output is correct
13	Correct	19 ms	1516 KB	Output is correct
14	Correct	22 ms	1396 KB	Output is correct
15	Correct	66 ms	3500 KB	Output is correct
16	Correct	72 ms	3528 KB	Output is correct
17	Correct	58 ms	3260 KB	Output is correct
18	Correct	54 ms	3336 KB	Output is correct
19	Correct	61 ms	3460 KB	Output is correct
20	Correct	62 ms	3584 KB	Output is correct
21	Correct	59 ms	3352 KB	Output is correct
22	Correct	56 ms	3188 KB	Output is correct
23	Correct	67 ms	3664 KB	Output is correct
24	Correct	64 ms	3648 KB	Output is correct
25	Correct	57 ms	3504 KB	Output is correct
26	Correct	64 ms	3264 KB	Output is correct
27	Correct	82 ms	3604 KB	Output is correct
28	Correct	65 ms	3548 KB	Output is correct
29	Correct	57 ms	3616 KB	Output is correct
30	Correct	64 ms	3532 KB	Output is correct
31	Correct	70 ms	3892 KB	Output is correct
32	Correct	73 ms	3692 KB	Output is correct
33	Correct	58 ms	3844 KB	Output is correct
34	Correct	59 ms	3508 KB	Output is correct

Subtask #9
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	200 KB	Output is correct
2	Correct	1 ms	200 KB	Output is correct
3	Correct	1 ms	200 KB	Output is correct
4	Correct	1 ms	200 KB	Output is correct
5	Correct	2 ms	328 KB	Output is correct
6	Correct	3 ms	328 KB	Output is correct
7	Correct	5 ms	584 KB	Output is correct
8	Correct	15 ms	840 KB	Output is correct
9	Correct	27 ms	1540 KB	Output is correct
10	Correct	2 ms	328 KB	Output is correct
11	Correct	16 ms	1096 KB	Output is correct
12	Correct	22 ms	1472 KB	Output is correct
13	Correct	19 ms	1516 KB	Output is correct
14	Correct	22 ms	1396 KB	Output is correct
15	Correct	66 ms	3500 KB	Output is correct
16	Correct	72 ms	3528 KB	Output is correct
17	Correct	58 ms	3260 KB	Output is correct
18	Correct	54 ms	3336 KB	Output is correct
19	Correct	61 ms	3460 KB	Output is correct
20	Correct	62 ms	3584 KB	Output is correct
21	Correct	59 ms	3352 KB	Output is correct
22	Correct	56 ms	3188 KB	Output is correct
23	Correct	67 ms	3664 KB	Output is correct
24	Correct	64 ms	3648 KB	Output is correct
25	Correct	57 ms	3504 KB	Output is correct
26	Correct	64 ms	3264 KB	Output is correct
27	Correct	82 ms	3604 KB	Output is correct
28	Correct	65 ms	3548 KB	Output is correct
29	Correct	57 ms	3616 KB	Output is correct
30	Correct	64 ms	3532 KB	Output is correct
31	Correct	70 ms	3892 KB	Output is correct
32	Correct	73 ms	3692 KB	Output is correct
33	Correct	58 ms	3844 KB	Output is correct
34	Correct	59 ms	3508 KB	Output is correct
35	Correct	71 ms	3692 KB	Output is correct
36	Correct	83 ms	3816 KB	Output is correct
37	Correct	59 ms	3840 KB	Output is correct
38	Correct	60 ms	3576 KB	Output is correct

답안 #411236

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