oj.uz

Submission #433967

# Submission time Handle Problem Language Result Execution time Memory
433967 2021-06-20T12:52:13 Z alishahali1382 Minerals (JOI19_minerals) C++14
100 / 100
 123 ms 4240 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){
	assert(SZ(X)==SZ(Y));
	if (SZ(X)==1){
		Answer(X[0], Y[0]);
		return ;
	}
	// if (rng()%2) swap(X, Y);
	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 0 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 200 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 3 ms 456 KB Output is correct
3 Correct 10 ms 584 KB Output is correct
4 Correct 13 ms 840 KB Output is correct
5 Correct 27 ms 1568 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 200 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 3 ms 456 KB Output is correct
7 Correct 10 ms 584 KB Output is correct
8 Correct 13 ms 840 KB Output is correct
9 Correct 27 ms 1568 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 21 ms 1236 KB Output is correct
12 Correct 34 ms 1512 KB Output is correct
13 Correct 27 ms 1516 KB Output is correct
14 Correct 29 ms 1676 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 200 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 3 ms 456 KB Output is correct
7 Correct 10 ms 584 KB Output is correct
8 Correct 13 ms 840 KB Output is correct
9 Correct 27 ms 1568 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 21 ms 1236 KB Output is correct
12 Correct 34 ms 1512 KB Output is correct
13 Correct 27 ms 1516 KB Output is correct
14 Correct 29 ms 1676 KB Output is correct
15 Correct 81 ms 3656 KB Output is correct
16 Correct 85 ms 3776 KB Output is correct
17 Correct 87 ms 3776 KB Output is correct
18 Correct 82 ms 3668 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 200 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 3 ms 456 KB Output is correct
7 Correct 10 ms 584 KB Output is correct
8 Correct 13 ms 840 KB Output is correct
9 Correct 27 ms 1568 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 21 ms 1236 KB Output is correct
12 Correct 34 ms 1512 KB Output is correct
13 Correct 27 ms 1516 KB Output is correct
14 Correct 29 ms 1676 KB Output is correct
15 Correct 81 ms 3656 KB Output is correct
16 Correct 85 ms 3776 KB Output is correct
17 Correct 87 ms 3776 KB Output is correct
18 Correct 82 ms 3668 KB Output is correct
19 Correct 84 ms 3876 KB Output is correct
20 Correct 83 ms 3792 KB Output is correct
21 Correct 86 ms 3916 KB Output is correct
22 Correct 110 ms 3728 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 200 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 3 ms 456 KB Output is correct
7 Correct 10 ms 584 KB Output is correct
8 Correct 13 ms 840 KB Output is correct
9 Correct 27 ms 1568 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 21 ms 1236 KB Output is correct
12 Correct 34 ms 1512 KB Output is correct
13 Correct 27 ms 1516 KB Output is correct
14 Correct 29 ms 1676 KB Output is correct
15 Correct 81 ms 3656 KB Output is correct
16 Correct 85 ms 3776 KB Output is correct
17 Correct 87 ms 3776 KB Output is correct
18 Correct 82 ms 3668 KB Output is correct
19 Correct 84 ms 3876 KB Output is correct
20 Correct 83 ms 3792 KB Output is correct
21 Correct 86 ms 3916 KB Output is correct
22 Correct 110 ms 3728 KB Output is correct
23 Correct 92 ms 3792 KB Output is correct
24 Correct 84 ms 3928 KB Output is correct
25 Correct 90 ms 4144 KB Output is correct
26 Correct 107 ms 3776 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 200 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 3 ms 456 KB Output is correct
7 Correct 10 ms 584 KB Output is correct
8 Correct 13 ms 840 KB Output is correct
9 Correct 27 ms 1568 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 21 ms 1236 KB Output is correct
12 Correct 34 ms 1512 KB Output is correct
13 Correct 27 ms 1516 KB Output is correct
14 Correct 29 ms 1676 KB Output is correct
15 Correct 81 ms 3656 KB Output is correct
16 Correct 85 ms 3776 KB Output is correct
17 Correct 87 ms 3776 KB Output is correct
18 Correct 82 ms 3668 KB Output is correct
19 Correct 84 ms 3876 KB Output is correct
20 Correct 83 ms 3792 KB Output is correct
21 Correct 86 ms 3916 KB Output is correct
22 Correct 110 ms 3728 KB Output is correct
23 Correct 92 ms 3792 KB Output is correct
24 Correct 84 ms 3928 KB Output is correct
25 Correct 90 ms 4144 KB Output is correct
26 Correct 107 ms 3776 KB Output is correct
27 Correct 90 ms 3936 KB Output is correct
28 Correct 92 ms 3940 KB Output is correct
29 Correct 97 ms 3976 KB Output is correct
30 Correct 113 ms 3776 KB Output is correct

Subtask #8
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 200 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 3 ms 456 KB Output is correct
7 Correct 10 ms 584 KB Output is correct
8 Correct 13 ms 840 KB Output is correct
9 Correct 27 ms 1568 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 21 ms 1236 KB Output is correct
12 Correct 34 ms 1512 KB Output is correct
13 Correct 27 ms 1516 KB Output is correct
14 Correct 29 ms 1676 KB Output is correct
15 Correct 81 ms 3656 KB Output is correct
16 Correct 85 ms 3776 KB Output is correct
17 Correct 87 ms 3776 KB Output is correct
18 Correct 82 ms 3668 KB Output is correct
19 Correct 84 ms 3876 KB Output is correct
20 Correct 83 ms 3792 KB Output is correct
21 Correct 86 ms 3916 KB Output is correct
22 Correct 110 ms 3728 KB Output is correct
23 Correct 92 ms 3792 KB Output is correct
24 Correct 84 ms 3928 KB Output is correct
25 Correct 90 ms 4144 KB Output is correct
26 Correct 107 ms 3776 KB Output is correct
27 Correct 90 ms 3936 KB Output is correct
28 Correct 92 ms 3940 KB Output is correct
29 Correct 97 ms 3976 KB Output is correct
30 Correct 113 ms 3776 KB Output is correct
31 Correct 97 ms 4044 KB Output is correct
32 Correct 98 ms 4144 KB Output is correct
33 Correct 93 ms 4232 KB Output is correct
34 Correct 92 ms 3928 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 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 200 KB Output is correct
5 Correct 2 ms 328 KB Output is correct
6 Correct 3 ms 456 KB Output is correct
7 Correct 10 ms 584 KB Output is correct
8 Correct 13 ms 840 KB Output is correct
9 Correct 27 ms 1568 KB Output is correct
10 Correct 2 ms 328 KB Output is correct
11 Correct 21 ms 1236 KB Output is correct
12 Correct 34 ms 1512 KB Output is correct
13 Correct 27 ms 1516 KB Output is correct
14 Correct 29 ms 1676 KB Output is correct
15 Correct 81 ms 3656 KB Output is correct
16 Correct 85 ms 3776 KB Output is correct
17 Correct 87 ms 3776 KB Output is correct
18 Correct 82 ms 3668 KB Output is correct
19 Correct 84 ms 3876 KB Output is correct
20 Correct 83 ms 3792 KB Output is correct
21 Correct 86 ms 3916 KB Output is correct
22 Correct 110 ms 3728 KB Output is correct
23 Correct 92 ms 3792 KB Output is correct
24 Correct 84 ms 3928 KB Output is correct
25 Correct 90 ms 4144 KB Output is correct
26 Correct 107 ms 3776 KB Output is correct
27 Correct 90 ms 3936 KB Output is correct
28 Correct 92 ms 3940 KB Output is correct
29 Correct 97 ms 3976 KB Output is correct
30 Correct 113 ms 3776 KB Output is correct
31 Correct 97 ms 4044 KB Output is correct
32 Correct 98 ms 4144 KB Output is correct
33 Correct 93 ms 4232 KB Output is correct
34 Correct 92 ms 3928 KB Output is correct
35 Correct 123 ms 4156 KB Output is correct
36 Correct 98 ms 4240 KB Output is correct
37 Correct 92 ms 4092 KB Output is correct
38 Correct 98 ms 4000 KB Output is correct