oj.uz

Submission #433972

# Submission time Handle Problem Language Result Execution time Memory
433972 2021-06-20T12:54:24 Z alishahali1382 Minerals (JOI19_minerals) C++14
100 / 100
 123 ms 4176 KB 
#include "minerals.h"
#include <bits/stdc++.h>
#pragma GCC optimize ("O2,unroll-loops")
//#pragma GCC optimize("no-stack-protector,fast-math")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")

using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<pii, int> piii;
typedef vector<int> vi;
#define debug(x) cerr<<#x<<'='<<(x)<<endl;
#define debugp(x) cerr<<#x<<"= {"<<(x.first)<<", "<<(x.second)<<"}"<<endl;
#define debug2(x, y) cerr<<"{"<<#x<<", "<<#y<<"} = {"<<(x)<<", "<<(y)<<"}"<<endl;
#define debugv(v) {cerr<<#v<<" : ";for (auto x:v) cerr<<x<<' ';cerr<<endl;}
#define all(x) x.begin(), x.end()
#define pb push_back
#define SZ(x) ((int)x.size())

const int inf=1000000010;
const ll INF=1000000000000001000LL;
const int mod=1000000007;
const int MAXN=100010, LOG=20;

int n, m, k, u, v, x, y, a, b, t, ans;
int mark[MAXN];
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int Ask(int x){
	mark[x]^=1;
	return ans=Query(x);
}
int diff(vi &vec){
	int ted=0;
	for (int x:vec) ted+=mark[x];
	return abs(SZ(vec)/2 - ted);
}

void divide(vi X, vi Y){
	if (SZ(X)==1){
		Answer(X[0], Y[0]);
		return ;
	}
	if (diff(X)>diff(Y)) swap(X, Y);
	int sz=SZ(X), mid=sz/2;
	shuffle(all(Y), rng);
	sort(all(X), [](int i, int j){
		return mark[i]>mark[j];
	});
	vi X1, X2, Y1, Y2;
	for (int i=0; i<sz; i++){
		if (i<mid) X1.pb(X[i]);
		else X2.pb(X[i]);
	}
	for (int x:X1) if (!mark[x]) Ask(x);
	for (int x:X2) if (mark[x]) Ask(x);
	for (int y:Y){
		if (SZ(Y1)==mid) Y2.pb(y);
		else if (SZ(Y2)==sz-mid) Y1.pb(y);
		else{
			int last=ans;
			if (Ask(y)==last) Y1.pb(y);
			else Y2.pb(y);
		}
	}
	divide(X1, Y1);
	divide(X2, Y2);
}

void Solve(int _n){
	n=_n;
	vi X, Y, P(2*n);
	iota(all(P), 1);
	shuffle(all(P), rng);
	for (int i:P){
		int last=ans;
		if (SZ(X)==n || Ask(i)==last) Y.pb(i);
		else X.pb(i);
	}
	divide(X, Y);
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 328 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 328 KB Output is correct
2 Correct 4 ms 456 KB Output is correct
3 Correct 8 ms 584 KB Output is correct
4 Correct 14 ms 968 KB Output is correct
5 Correct 37 ms 1452 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 328 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 4 ms 456 KB Output is correct
7 Correct 8 ms 584 KB Output is correct
8 Correct 14 ms 968 KB Output is correct
9 Correct 37 ms 1452 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 24 ms 1224 KB Output is correct
12 Correct 27 ms 1564 KB Output is correct
13 Correct 27 ms 1616 KB Output is correct
14 Correct 33 ms 1480 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 328 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 4 ms 456 KB Output is correct
7 Correct 8 ms 584 KB Output is correct
8 Correct 14 ms 968 KB Output is correct
9 Correct 37 ms 1452 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 24 ms 1224 KB Output is correct
12 Correct 27 ms 1564 KB Output is correct
13 Correct 27 ms 1616 KB Output is correct
14 Correct 33 ms 1480 KB Output is correct
15 Correct 88 ms 3736 KB Output is correct
16 Correct 85 ms 3700 KB Output is correct
17 Correct 78 ms 3716 KB Output is correct
18 Correct 100 ms 3680 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 328 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 4 ms 456 KB Output is correct
7 Correct 8 ms 584 KB Output is correct
8 Correct 14 ms 968 KB Output is correct
9 Correct 37 ms 1452 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 24 ms 1224 KB Output is correct
12 Correct 27 ms 1564 KB Output is correct
13 Correct 27 ms 1616 KB Output is correct
14 Correct 33 ms 1480 KB Output is correct
15 Correct 88 ms 3736 KB Output is correct
16 Correct 85 ms 3700 KB Output is correct
17 Correct 78 ms 3716 KB Output is correct
18 Correct 100 ms 3680 KB Output is correct
19 Correct 101 ms 3856 KB Output is correct
20 Correct 84 ms 3824 KB Output is correct
21 Correct 82 ms 3900 KB Output is correct
22 Correct 81 ms 3704 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 328 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 4 ms 456 KB Output is correct
7 Correct 8 ms 584 KB Output is correct
8 Correct 14 ms 968 KB Output is correct
9 Correct 37 ms 1452 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 24 ms 1224 KB Output is correct
12 Correct 27 ms 1564 KB Output is correct
13 Correct 27 ms 1616 KB Output is correct
14 Correct 33 ms 1480 KB Output is correct
15 Correct 88 ms 3736 KB Output is correct
16 Correct 85 ms 3700 KB Output is correct
17 Correct 78 ms 3716 KB Output is correct
18 Correct 100 ms 3680 KB Output is correct
19 Correct 101 ms 3856 KB Output is correct
20 Correct 84 ms 3824 KB Output is correct
21 Correct 82 ms 3900 KB Output is correct
22 Correct 81 ms 3704 KB Output is correct
23 Correct 85 ms 3876 KB Output is correct
24 Correct 87 ms 3936 KB Output is correct
25 Correct 97 ms 3980 KB Output is correct
26 Correct 87 ms 3684 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 328 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 4 ms 456 KB Output is correct
7 Correct 8 ms 584 KB Output is correct
8 Correct 14 ms 968 KB Output is correct
9 Correct 37 ms 1452 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 24 ms 1224 KB Output is correct
12 Correct 27 ms 1564 KB Output is correct
13 Correct 27 ms 1616 KB Output is correct
14 Correct 33 ms 1480 KB Output is correct
15 Correct 88 ms 3736 KB Output is correct
16 Correct 85 ms 3700 KB Output is correct
17 Correct 78 ms 3716 KB Output is correct
18 Correct 100 ms 3680 KB Output is correct
19 Correct 101 ms 3856 KB Output is correct
20 Correct 84 ms 3824 KB Output is correct
21 Correct 82 ms 3900 KB Output is correct
22 Correct 81 ms 3704 KB Output is correct
23 Correct 85 ms 3876 KB Output is correct
24 Correct 87 ms 3936 KB Output is correct
25 Correct 97 ms 3980 KB Output is correct
26 Correct 87 ms 3684 KB Output is correct
27 Correct 97 ms 3960 KB Output is correct
28 Correct 104 ms 3944 KB Output is correct
29 Correct 84 ms 3844 KB Output is correct
30 Correct 96 ms 3732 KB Output is correct

Subtask #8
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 328 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 4 ms 456 KB Output is correct
7 Correct 8 ms 584 KB Output is correct
8 Correct 14 ms 968 KB Output is correct
9 Correct 37 ms 1452 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 24 ms 1224 KB Output is correct
12 Correct 27 ms 1564 KB Output is correct
13 Correct 27 ms 1616 KB Output is correct
14 Correct 33 ms 1480 KB Output is correct
15 Correct 88 ms 3736 KB Output is correct
16 Correct 85 ms 3700 KB Output is correct
17 Correct 78 ms 3716 KB Output is correct
18 Correct 100 ms 3680 KB Output is correct
19 Correct 101 ms 3856 KB Output is correct
20 Correct 84 ms 3824 KB Output is correct
21 Correct 82 ms 3900 KB Output is correct
22 Correct 81 ms 3704 KB Output is correct
23 Correct 85 ms 3876 KB Output is correct
24 Correct 87 ms 3936 KB Output is correct
25 Correct 97 ms 3980 KB Output is correct
26 Correct 87 ms 3684 KB Output is correct
27 Correct 97 ms 3960 KB Output is correct
28 Correct 104 ms 3944 KB Output is correct
29 Correct 84 ms 3844 KB Output is correct
30 Correct 96 ms 3732 KB Output is correct
31 Correct 97 ms 4128 KB Output is correct
32 Correct 91 ms 3996 KB Output is correct
33 Correct 89 ms 4028 KB Output is correct
34 Correct 123 ms 3968 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 200 KB Output is correct
2 Correct 1 ms 200 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 328 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 4 ms 456 KB Output is correct
7 Correct 8 ms 584 KB Output is correct
8 Correct 14 ms 968 KB Output is correct
9 Correct 37 ms 1452 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 24 ms 1224 KB Output is correct
12 Correct 27 ms 1564 KB Output is correct
13 Correct 27 ms 1616 KB Output is correct
14 Correct 33 ms 1480 KB Output is correct
15 Correct 88 ms 3736 KB Output is correct
16 Correct 85 ms 3700 KB Output is correct
17 Correct 78 ms 3716 KB Output is correct
18 Correct 100 ms 3680 KB Output is correct
19 Correct 101 ms 3856 KB Output is correct
20 Correct 84 ms 3824 KB Output is correct
21 Correct 82 ms 3900 KB Output is correct
22 Correct 81 ms 3704 KB Output is correct
23 Correct 85 ms 3876 KB Output is correct
24 Correct 87 ms 3936 KB Output is correct
25 Correct 97 ms 3980 KB Output is correct
26 Correct 87 ms 3684 KB Output is correct
27 Correct 97 ms 3960 KB Output is correct
28 Correct 104 ms 3944 KB Output is correct
29 Correct 84 ms 3844 KB Output is correct
30 Correct 96 ms 3732 KB Output is correct
31 Correct 97 ms 4128 KB Output is correct
32 Correct 91 ms 3996 KB Output is correct
33 Correct 89 ms 4028 KB Output is correct
34 Correct 123 ms 3968 KB Output is correct
35 Correct 94 ms 4152 KB Output is correct
36 Correct 91 ms 4084 KB Output is correct
37 Correct 96 ms 4176 KB Output is correct
38 Correct 90 ms 4012 KB Output is correct