Submission #826125

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
826125	2023-08-15T10:33:01 Z	model_code	Toxic Gene (NOI23_toxic)	C++17	100 / 100	15 ms	468 KB

toxic

#include "toxic.h"
#include <bits/stdc++.h>
using namespace std;
#define all(x) (x).begin(),(x).end()
#define sz(x) (int)(x).size()
#define show(x) cerr << #x << " is " << x << endl;
#define show2(x,y) cerr << #x << " is " << x << " " << #y << " is " << y << endl;
typedef pair<int, int> ii;

vector<int> toquery;
int query(){
	return query_sample(toquery);
}

deque<int> an;
deque<int> nt;
deque<int> unknown;
int onetoxic = -1;
set<int> antidode;

bool checkunknown(vector<int> elements){
	if(sz(elements) == 0) return false;
		
	toquery.clear();
	
	for(int i = 0;i < sz(elements);i++){
		for(int j = 0;j < (1 << i);j++) toquery.push_back(elements[i]);
	}
	
	int cnt = min(sz(an), 8-sz(elements));
	for(int i = 0;i < cnt;i++){
		for(int j = 0;j < (1 << (i+sz(elements)));j++) toquery.push_back(an[i]);
	}
		
	int res = query_sample(toquery);
	if(res == sz(toquery)){
		return false;
	}
	else{
		for(int i = 0;i < sz(elements);i++){
			if(res & (1 << i)){
				answer_type(elements[i], 'S');
				antidode.insert(elements[i]);
			}
		}
		for(int i = 0;i < cnt;i++){ ///piggybacking
			if(res & (1 << (i+sz(elements)))) answer_type(an[0], 'S');
			else answer_type(an[0], 'R');
			an.pop_front();
		}
		return true;
	}
}

bool checknt(vector<int> elements){
	if(sz(elements) == 0) return false;
		
	toquery.clear();
	
	for(int i = 0;i < sz(elements);i++){
		toquery.push_back(elements[i]);
	}
	
	int cnt = min(sz(an), 8);
	for(int i = 0;i < cnt;i++){
		for(int j = 0;j < (1 << i);j++) toquery.push_back(an[i]);
	}
		
	int res = query_sample(toquery);
	if(res == sz(toquery)){
		return false;
	}
	else{
		for(int i = 0;i < cnt;i++){ ///piggybacking
			if(res & (1 << i)) answer_type(an[0], 'S');
			else answer_type(an[0], 'R');
			an.pop_front();
		}
		return true;
	}
}

void bsta(vector<int> elements){ ///assuming inside this group already got something bad
	if(sz(elements) == 0) return;
	if(sz(elements) == 1){
		onetoxic = elements[0];
		answer_type(elements[0], 'T');
		return;
	}
	
	vector<int> newelements;
	for(int x : elements) if(antidode.find(x) == antidode.end()) newelements.push_back(x);
	
	int mid = sz(newelements) / 2;
	
	vector<int> L, R;
	for(int i = 0;i < mid;i++){
		L.push_back(newelements[i]);
	}
	for(int i = mid;i < sz(newelements);i++){
		R.push_back(newelements[i]);
	}
	
	if(checknt(L)){ ///L have toxic
		for(int x : R) nt.push_back(x);
		bsta(L);
	}
	else{ ///L don't have toxic
		for(int x : L) answer_type(x, 'R');
		bsta(R);
	}
}


void determine_type(int n){
	an.clear(); unknown.clear(); antidode.clear();
	for(int i = 1;i <= n;i++) unknown.push_back(i);
	random_shuffle(all(unknown));
	
	while(sz(unknown) > 0){
		//show(sz(unknown));
		
		int batchsize = min(7, sz(unknown));
		vector<int> totest;
		for(int i = 0;i < batchsize;i++){
			totest.push_back(unknown[0]);
			unknown.pop_front();
		}
		
		if(checkunknown(totest)) bsta(totest);
		else{
			for(int x : totest) an.push_back(x);
		}
	}
	
	while(sz(nt) > 0){
		int batchsize = min(8, sz(nt));
		vector<int> totest;
		for(int i = 0;i < batchsize;i++){
			totest.push_back(nt[0]);
			nt.pop_front();
		}
		
		if(checknt(totest)) bsta(totest);
		else{
			for(int x : totest) answer_type(x, 'R');
		}
	}
	
	//if(current_tc % 100 == 0) show(sz(an));
	while(sz(an) > 0){
		checknt({onetoxic});
	}
}

Subtask #1

100.0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	9 ms	340 KB	Output is correct
3	Correct	12 ms	376 KB	Output is correct
4	Correct	9 ms	376 KB	Output is correct
5	Correct	8 ms	376 KB	Output is correct
6	Correct	9 ms	372 KB	Output is correct
7	Correct	9 ms	320 KB	Output is correct
8	Correct	9 ms	396 KB	Output is correct
9	Correct	10 ms	396 KB	Output is correct
10	Correct	13 ms	340 KB	Output is correct
11	Correct	10 ms	468 KB	Output is correct
12	Correct	9 ms	340 KB	Output is correct
13	Correct	15 ms	312 KB	Output is correct
14	Correct	10 ms	408 KB	Output is correct
15	Correct	9 ms	376 KB	Output is correct
16	Correct	9 ms	340 KB	Output is correct
17	Correct	9 ms	340 KB	Output is correct
18	Correct	10 ms	340 KB	Output is correct
19	Correct	10 ms	400 KB	Output is correct
20	Correct	10 ms	340 KB	Output is correct
21	Correct	10 ms	404 KB	Output is correct
22	Correct	10 ms	336 KB	Output is correct
23	Correct	8 ms	340 KB	Output is correct
24	Correct	10 ms	340 KB	Output is correct
25	Correct	9 ms	360 KB	Output is correct
26	Correct	9 ms	376 KB	Output is correct
27	Correct	9 ms	340 KB	Output is correct
28	Correct	9 ms	340 KB	Output is correct
29	Correct	11 ms	376 KB	Output is correct
30	Correct	11 ms	340 KB	Output is correct
31	Correct	10 ms	340 KB	Output is correct
32	Correct	10 ms	376 KB	Output is correct
33	Correct	11 ms	340 KB	Output is correct
34	Correct	8 ms	400 KB	Output is correct
35	Correct	9 ms	340 KB	Output is correct
36	Correct	1 ms	212 KB	Output is correct