oj.uz

Submission #901557

# Submission time Handle Problem Language Result Execution time Memory
901557 2024-01-09T14:37:00 Z Darren0724 Minerals (JOI19_minerals) C++17
100 / 100
 65 ms 4944 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*37/100);
	int m1=max(1,n*63/100);
	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 1 ms 928 KB Output is correct
2 Correct 1 ms 856 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 3 ms 1012 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 3 ms 1012 KB Output is correct
3 Correct 6 ms 1112 KB Output is correct
4 Correct 11 ms 1532 KB Output is correct
5 Correct 19 ms 2388 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 928 KB Output is correct
2 Correct 1 ms 856 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 3 ms 1012 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 3 ms 1012 KB Output is correct
7 Correct 6 ms 1112 KB Output is correct
8 Correct 11 ms 1532 KB Output is correct
9 Correct 19 ms 2388 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 12 ms 1700 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 23 ms 2484 KB Output is correct
14 Correct 20 ms 2472 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 928 KB Output is correct
2 Correct 1 ms 856 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 3 ms 1012 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 3 ms 1012 KB Output is correct
7 Correct 6 ms 1112 KB Output is correct
8 Correct 11 ms 1532 KB Output is correct
9 Correct 19 ms 2388 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 12 ms 1700 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 23 ms 2484 KB Output is correct
14 Correct 20 ms 2472 KB Output is correct
15 Correct 54 ms 4068 KB Output is correct
16 Correct 54 ms 4012 KB Output is correct
17 Correct 56 ms 4232 KB Output is correct
18 Correct 52 ms 4232 KB Output is correct

Subtask #5
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 928 KB Output is correct
2 Correct 1 ms 856 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 3 ms 1012 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 3 ms 1012 KB Output is correct
7 Correct 6 ms 1112 KB Output is correct
8 Correct 11 ms 1532 KB Output is correct
9 Correct 19 ms 2388 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 12 ms 1700 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 23 ms 2484 KB Output is correct
14 Correct 20 ms 2472 KB Output is correct
15 Correct 54 ms 4068 KB Output is correct
16 Correct 54 ms 4012 KB Output is correct
17 Correct 56 ms 4232 KB Output is correct
18 Correct 52 ms 4232 KB Output is correct
19 Correct 54 ms 4160 KB Output is correct
20 Correct 57 ms 4052 KB Output is correct
21 Correct 64 ms 4588 KB Output is correct
22 Correct 59 ms 4104 KB Output is correct

Subtask #6
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 928 KB Output is correct
2 Correct 1 ms 856 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 3 ms 1012 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 3 ms 1012 KB Output is correct
7 Correct 6 ms 1112 KB Output is correct
8 Correct 11 ms 1532 KB Output is correct
9 Correct 19 ms 2388 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 12 ms 1700 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 23 ms 2484 KB Output is correct
14 Correct 20 ms 2472 KB Output is correct
15 Correct 54 ms 4068 KB Output is correct
16 Correct 54 ms 4012 KB Output is correct
17 Correct 56 ms 4232 KB Output is correct
18 Correct 52 ms 4232 KB Output is correct
19 Correct 54 ms 4160 KB Output is correct
20 Correct 57 ms 4052 KB Output is correct
21 Correct 64 ms 4588 KB Output is correct
22 Correct 59 ms 4104 KB Output is correct
23 Correct 61 ms 4048 KB Output is correct
24 Correct 65 ms 4276 KB Output is correct
25 Correct 54 ms 4180 KB Output is correct
26 Correct 55 ms 4160 KB Output is correct

Subtask #7
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 928 KB Output is correct
2 Correct 1 ms 856 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 3 ms 1012 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 3 ms 1012 KB Output is correct
7 Correct 6 ms 1112 KB Output is correct
8 Correct 11 ms 1532 KB Output is correct
9 Correct 19 ms 2388 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 12 ms 1700 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 23 ms 2484 KB Output is correct
14 Correct 20 ms 2472 KB Output is correct
15 Correct 54 ms 4068 KB Output is correct
16 Correct 54 ms 4012 KB Output is correct
17 Correct 56 ms 4232 KB Output is correct
18 Correct 52 ms 4232 KB Output is correct
19 Correct 54 ms 4160 KB Output is correct
20 Correct 57 ms 4052 KB Output is correct
21 Correct 64 ms 4588 KB Output is correct
22 Correct 59 ms 4104 KB Output is correct
23 Correct 61 ms 4048 KB Output is correct
24 Correct 65 ms 4276 KB Output is correct
25 Correct 54 ms 4180 KB Output is correct
26 Correct 55 ms 4160 KB Output is correct
27 Correct 56 ms 4308 KB Output is correct
28 Correct 57 ms 4316 KB Output is correct
29 Correct 61 ms 4316 KB Output is correct
30 Correct 56 ms 4336 KB Output is correct

Subtask #8
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 928 KB Output is correct
2 Correct 1 ms 856 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 3 ms 1012 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 3 ms 1012 KB Output is correct
7 Correct 6 ms 1112 KB Output is correct
8 Correct 11 ms 1532 KB Output is correct
9 Correct 19 ms 2388 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 12 ms 1700 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 23 ms 2484 KB Output is correct
14 Correct 20 ms 2472 KB Output is correct
15 Correct 54 ms 4068 KB Output is correct
16 Correct 54 ms 4012 KB Output is correct
17 Correct 56 ms 4232 KB Output is correct
18 Correct 52 ms 4232 KB Output is correct
19 Correct 54 ms 4160 KB Output is correct
20 Correct 57 ms 4052 KB Output is correct
21 Correct 64 ms 4588 KB Output is correct
22 Correct 59 ms 4104 KB Output is correct
23 Correct 61 ms 4048 KB Output is correct
24 Correct 65 ms 4276 KB Output is correct
25 Correct 54 ms 4180 KB Output is correct
26 Correct 55 ms 4160 KB Output is correct
27 Correct 56 ms 4308 KB Output is correct
28 Correct 57 ms 4316 KB Output is correct
29 Correct 61 ms 4316 KB Output is correct
30 Correct 56 ms 4336 KB Output is correct
31 Correct 58 ms 4372 KB Output is correct
32 Correct 58 ms 4308 KB Output is correct
33 Correct 57 ms 4620 KB Output is correct
34 Correct 58 ms 4372 KB Output is correct

Subtask #9
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 928 KB Output is correct
2 Correct 1 ms 856 KB Output is correct
3 Correct 1 ms 856 KB Output is correct
4 Correct 3 ms 1012 KB Output is correct
5 Correct 1 ms 856 KB Output is correct
6 Correct 3 ms 1012 KB Output is correct
7 Correct 6 ms 1112 KB Output is correct
8 Correct 11 ms 1532 KB Output is correct
9 Correct 19 ms 2388 KB Output is correct
10 Correct 2 ms 856 KB Output is correct
11 Correct 12 ms 1700 KB Output is correct
12 Correct 19 ms 1988 KB Output is correct
13 Correct 23 ms 2484 KB Output is correct
14 Correct 20 ms 2472 KB Output is correct
15 Correct 54 ms 4068 KB Output is correct
16 Correct 54 ms 4012 KB Output is correct
17 Correct 56 ms 4232 KB Output is correct
18 Correct 52 ms 4232 KB Output is correct
19 Correct 54 ms 4160 KB Output is correct
20 Correct 57 ms 4052 KB Output is correct
21 Correct 64 ms 4588 KB Output is correct
22 Correct 59 ms 4104 KB Output is correct
23 Correct 61 ms 4048 KB Output is correct
24 Correct 65 ms 4276 KB Output is correct
25 Correct 54 ms 4180 KB Output is correct
26 Correct 55 ms 4160 KB Output is correct
27 Correct 56 ms 4308 KB Output is correct
28 Correct 57 ms 4316 KB Output is correct
29 Correct 61 ms 4316 KB Output is correct
30 Correct 56 ms 4336 KB Output is correct
31 Correct 58 ms 4372 KB Output is correct
32 Correct 58 ms 4308 KB Output is correct
33 Correct 57 ms 4620 KB Output is correct
34 Correct 58 ms 4372 KB Output is correct
35 Correct 64 ms 4380 KB Output is correct
36 Correct 60 ms 4376 KB Output is correct
37 Correct 58 ms 4944 KB Output is correct
38 Correct 59 ms 4376 KB Output is correct