oj.uz

Submission #901551

# Submission time Handle Problem Language Result Execution time Memory
901551 2024-01-09T14:33:36 Z Darren0724 Minerals (JOI19_minerals) C++17
100 / 100
 64 ms 4732 KB 
#include "minerals.h"
#include <bits/stdc++.h>
//#include "grader.cpp"
using namespace std;

mt19937 rnd(time(0));
int last=0;
vector<int> have(100000);
int ask(int k){
	have[k] ^= 1;
	int p = Query(k);
	int tmp = p - last;
	last = p;
	return tmp; 
}
void dc(vector<int> &a,vector<int> &b){
	shuffle(a.begin(),a.end(),rnd);
	shuffle(b.begin(),b.end(),rnd);
	int n=a.size();
	if(n==1){
		Answer(a[0],b[0]);
		return;
	}
	int m=max(1,n*379/1000);
	int m1=max(1,n*614/1000);
	int sz1=0,sz2=0;
	vector<int> a1,a2,b1,b2,tmp1,tmp2;
	for(int i=0;i<n;i++){
		if(have[a[i]]){
			sz1++;
		}
		if(have[b[i]]){
			sz2++;
		}
	}
	if(min(abs(m-sz2),abs(m-sz1))>min(abs(m1-sz2),abs(m1-sz1))){
		m=m1;
	}
	if(abs(m-sz2)<abs(m-sz1)){
		swap(a,b);
		swap(tmp1,tmp2);
		swap(sz1,sz2);
	}
	//cout<<sz1<<' '<<sz2<<' '<<m<<endl;
	for(int i=0;i<n;i++){
		if(have[a[i]]){
			tmp1.push_back(a[i]);
		}
		else{
			tmp2.push_back(a[i]);
		}
	}
	if(sz1>m){
		int t=abs(m-sz1);
		for(int i=0;i<t;i++){
			ask(tmp1[i]);
		}
	}	
	else{
		int t=abs(m-sz1);
		for(int i=0;i<t;i++){
			ask(tmp2[i]);
		}
	}
	for(int i=0;i<n;i++){
		if(have[a[i]]){
			a1.push_back(a[i]);
		}
		else{
			a2.push_back(a[i]);
		}	
	}
	int cnt=0;
	for(int i=0;i<n;i++){
		if(cnt==m){
			b2.push_back(b[i]);
			continue;
		}
		if(ask(b[i])==0){
			cnt++;
			b1.push_back(b[i]);
		}
		else{
			b2.push_back(b[i]);
		}
	}
	dc(a1,b1);
	dc(a2,b2);
}
void Solve(int n) {
	vector<int> a,b;
	vector<int> t(n*2);
	iota(t.begin(),t.end(),1);
	shuffle(t.begin(),t.end(),rnd);
	for(int j=0;j<n*2;j++){
		int i=t[j];
		if(a.size()==n){
			b.push_back(i);
			continue;
		}
		if(ask(i)==0){
			b.push_back(i);
		}
		else{
			a.push_back(i);
		}
	}
	dc(a,b);
}
/*
times: N*2 + N log N * 3/2
*/

Compilation message

minerals.cpp: In function 'void Solve(int)':
minerals.cpp:97:14: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   97 |   if(a.size()==n){
      |      ~~~~~~~~^~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 856 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 0 ms 856 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 856 KB Output is correct
2 Correct 2 ms 856 KB Output is correct
3 Correct 5 ms 1112 KB Output is correct
4 Correct 10 ms 1368 KB Output is correct
5 Correct 19 ms 1876 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 856 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 0 ms 856 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 2 ms 856 KB Output is correct
7 Correct 5 ms 1112 KB Output is correct
8 Correct 10 ms 1368 KB Output is correct
9 Correct 19 ms 1876 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 13 ms 1696 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 19 ms 2444 KB Output is correct
14 Correct 19 ms 2392 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 856 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 0 ms 856 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 2 ms 856 KB Output is correct
7 Correct 5 ms 1112 KB Output is correct
8 Correct 10 ms 1368 KB Output is correct
9 Correct 19 ms 1876 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 13 ms 1696 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 19 ms 2444 KB Output is correct
14 Correct 19 ms 2392 KB Output is correct
15 Correct 56 ms 4072 KB Output is correct
16 Correct 64 ms 4068 KB Output is correct
17 Correct 52 ms 4044 KB Output is correct
18 Correct 52 ms 4016 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 856 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 0 ms 856 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 2 ms 856 KB Output is correct
7 Correct 5 ms 1112 KB Output is correct
8 Correct 10 ms 1368 KB Output is correct
9 Correct 19 ms 1876 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 13 ms 1696 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 19 ms 2444 KB Output is correct
14 Correct 19 ms 2392 KB Output is correct
15 Correct 56 ms 4072 KB Output is correct
16 Correct 64 ms 4068 KB Output is correct
17 Correct 52 ms 4044 KB Output is correct
18 Correct 52 ms 4016 KB Output is correct
19 Correct 56 ms 4100 KB Output is correct
20 Correct 55 ms 4088 KB Output is correct
21 Correct 57 ms 4280 KB Output is correct
22 Correct 53 ms 3804 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 856 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 0 ms 856 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 2 ms 856 KB Output is correct
7 Correct 5 ms 1112 KB Output is correct
8 Correct 10 ms 1368 KB Output is correct
9 Correct 19 ms 1876 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 13 ms 1696 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 19 ms 2444 KB Output is correct
14 Correct 19 ms 2392 KB Output is correct
15 Correct 56 ms 4072 KB Output is correct
16 Correct 64 ms 4068 KB Output is correct
17 Correct 52 ms 4044 KB Output is correct
18 Correct 52 ms 4016 KB Output is correct
19 Correct 56 ms 4100 KB Output is correct
20 Correct 55 ms 4088 KB Output is correct
21 Correct 57 ms 4280 KB Output is correct
22 Correct 53 ms 3804 KB Output is correct
23 Correct 61 ms 4104 KB Output is correct
24 Correct 53 ms 4100 KB Output is correct
25 Correct 53 ms 4232 KB Output is correct
26 Correct 59 ms 3928 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 856 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 0 ms 856 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 2 ms 856 KB Output is correct
7 Correct 5 ms 1112 KB Output is correct
8 Correct 10 ms 1368 KB Output is correct
9 Correct 19 ms 1876 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 13 ms 1696 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 19 ms 2444 KB Output is correct
14 Correct 19 ms 2392 KB Output is correct
15 Correct 56 ms 4072 KB Output is correct
16 Correct 64 ms 4068 KB Output is correct
17 Correct 52 ms 4044 KB Output is correct
18 Correct 52 ms 4016 KB Output is correct
19 Correct 56 ms 4100 KB Output is correct
20 Correct 55 ms 4088 KB Output is correct
21 Correct 57 ms 4280 KB Output is correct
22 Correct 53 ms 3804 KB Output is correct
23 Correct 61 ms 4104 KB Output is correct
24 Correct 53 ms 4100 KB Output is correct
25 Correct 53 ms 4232 KB Output is correct
26 Correct 59 ms 3928 KB Output is correct
27 Correct 56 ms 4272 KB Output is correct
28 Correct 59 ms 4288 KB Output is correct
29 Correct 57 ms 4564 KB Output is correct
30 Correct 54 ms 4116 KB Output is correct

Subtask #8
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 856 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 0 ms 856 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 2 ms 856 KB Output is correct
7 Correct 5 ms 1112 KB Output is correct
8 Correct 10 ms 1368 KB Output is correct
9 Correct 19 ms 1876 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 13 ms 1696 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 19 ms 2444 KB Output is correct
14 Correct 19 ms 2392 KB Output is correct
15 Correct 56 ms 4072 KB Output is correct
16 Correct 64 ms 4068 KB Output is correct
17 Correct 52 ms 4044 KB Output is correct
18 Correct 52 ms 4016 KB Output is correct
19 Correct 56 ms 4100 KB Output is correct
20 Correct 55 ms 4088 KB Output is correct
21 Correct 57 ms 4280 KB Output is correct
22 Correct 53 ms 3804 KB Output is correct
23 Correct 61 ms 4104 KB Output is correct
24 Correct 53 ms 4100 KB Output is correct
25 Correct 53 ms 4232 KB Output is correct
26 Correct 59 ms 3928 KB Output is correct
27 Correct 56 ms 4272 KB Output is correct
28 Correct 59 ms 4288 KB Output is correct
29 Correct 57 ms 4564 KB Output is correct
30 Correct 54 ms 4116 KB Output is correct
31 Correct 61 ms 4448 KB Output is correct
32 Correct 58 ms 4316 KB Output is correct
33 Correct 57 ms 4308 KB Output is correct
34 Correct 55 ms 4316 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 856 KB Output is correct
2 Correct 0 ms 600 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 0 ms 856 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 2 ms 856 KB Output is correct
7 Correct 5 ms 1112 KB Output is correct
8 Correct 10 ms 1368 KB Output is correct
9 Correct 19 ms 1876 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 13 ms 1696 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 19 ms 2444 KB Output is correct
14 Correct 19 ms 2392 KB Output is correct
15 Correct 56 ms 4072 KB Output is correct
16 Correct 64 ms 4068 KB Output is correct
17 Correct 52 ms 4044 KB Output is correct
18 Correct 52 ms 4016 KB Output is correct
19 Correct 56 ms 4100 KB Output is correct
20 Correct 55 ms 4088 KB Output is correct
21 Correct 57 ms 4280 KB Output is correct
22 Correct 53 ms 3804 KB Output is correct
23 Correct 61 ms 4104 KB Output is correct
24 Correct 53 ms 4100 KB Output is correct
25 Correct 53 ms 4232 KB Output is correct
26 Correct 59 ms 3928 KB Output is correct
27 Correct 56 ms 4272 KB Output is correct
28 Correct 59 ms 4288 KB Output is correct
29 Correct 57 ms 4564 KB Output is correct
30 Correct 54 ms 4116 KB Output is correct
31 Correct 61 ms 4448 KB Output is correct
32 Correct 58 ms 4316 KB Output is correct
33 Correct 57 ms 4308 KB Output is correct
34 Correct 55 ms 4316 KB Output is correct
35 Correct 58 ms 4372 KB Output is correct
36 Correct 58 ms 4308 KB Output is correct
37 Correct 58 ms 4732 KB Output is correct
38 Correct 58 ms 4632 KB Output is correct