Submission #828289

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
828289	2023-08-17T07:53:42 Z	박상훈(#10381)	Toxic Gene (NOI23_toxic)	C++17	79.75 / 100	13 ms	380 KB

toxic

#include "toxic.h"
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

mt19937 seed(1557);

int I[303], mem;
vector<char> typ;

pair<vector<int>, vector<int>> query_exp(const vector<int> &V, const vector<int> &W){
	vector<int> Q;
	for (int i=0;i<(int)V.size();i++){
		for (int j=0;j<(1<<i);j++) Q.push_back(V[i]);
	}

	for (int i=0;i<(int)W.size();i++) Q.push_back(W[i]);

	for (auto &x:Q) x = I[x];
	int ret = query_sample(Q);
	mem = (int)Q.size() - ret;
	vector<int> dead, alive;

	for (int i=0;i<(int)V.size();i++){
		if (ret&(1<<i)) alive.push_back(V[i]);
		else dead.push_back(V[i]);
	}

	return {dead, alive};
}

int query_linear(const vector<int> &V){
	vector<int> Q;
	for (auto &x:V) Q.push_back(I[x]);
	return query_sample(Q);
}

int search(const vector<int> &dead, vector<pair<int, int>> &P){
	int l = 0, r = (int)dead.size()-1;
	while(l<r){
		int m = (l+r)>>1;
		vector<int> V, fuck;
		for (int i=l;i<=m;i++) V.push_back(dead[i]);

		if (!P.empty()){
			auto [l2, r2] = P.back();
			for (int i=l2;i<=r2;i++) fuck.push_back(i);

			auto [deadF, aliveF] = query_exp(fuck, V);
			if (mem==0) l = m+1;
			else{
				for (auto &x:deadF) typ[x] = 'R';
				for (auto &x:aliveF) typ[x] = 'S';
				P.pop_back();
				r = m;
			}
		}

		else{
			if (query_linear(V)==(int)V.size()) l = m+1;
			else r = m;
		}
		
	}

	return dead[l];
}

void determine_type(int n){
	for (int i=1;i<=n;i++) I[i] = i;
	shuffle(I+1, I+n+1, seed);
	
	typ.clear();
	typ.resize(n+1);
	vector<int> toxic;
	vector<pair<int, int>> P;

	for (int i=1;i<=n;i+=8){
		int r = min(n, i+7);

		vector<int> V;
		for (int j=i;j<=r;j++) V.push_back(j);
		
		auto [dead, alive] = query_exp(V, vector<int>());
		if (dead.empty()){P.emplace_back(i, r); continue;}

		for (auto &x:alive) typ[x] = 'S';

		// printf("dead: ");
		// for (auto &x:dead) printf("%d ", x);
		// printf("\n");

		// printf("alive: ");
		// for (auto &x:alive) printf("%d ", x);
		// printf("\n");
		
		while(true){
			int p = search(dead, P);
			toxic.push_back(p);
			typ[p] = 'T';

			// printf("found toxic: %d\n", I[p]);

			dead.erase(find(dead.begin(), dead.end(), p));
			if (query_linear(dead)==(int)dead.size()) break;
		}

		for (auto &x:dead) typ[x] = 'R';
	}

	for (auto &[l, r]:P){
		vector<int> V;
		for (int j=l;j<=r;j++) V.push_back(j);

		auto [dead, alive] = query_exp(V, vector<int>(1, toxic[0]));
		for (auto &x:dead) typ[x] = 'R';
		for (auto &x:alive) typ[x] = 'S';
	}

	for (int i=1;i<=n;i++) answer_type(I[i], typ[i]);
}

Subtask #1

79.75 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Partially correct	10 ms	340 KB	Partially correct
3	Partially correct	10 ms	372 KB	Partially correct
4	Partially correct	10 ms	380 KB	Partially correct
5	Partially correct	10 ms	372 KB	Partially correct
6	Partially correct	12 ms	340 KB	Partially correct
7	Partially correct	10 ms	372 KB	Partially correct
8	Partially correct	13 ms	372 KB	Partially correct
9	Partially correct	10 ms	372 KB	Partially correct
10	Partially correct	10 ms	340 KB	Partially correct
11	Correct	12 ms	340 KB	Output is correct
12	Partially correct	12 ms	340 KB	Partially correct
13	Partially correct	10 ms	372 KB	Partially correct
14	Partially correct	9 ms	340 KB	Partially correct
15	Partially correct	10 ms	340 KB	Partially correct
16	Partially correct	10 ms	372 KB	Partially correct
17	Partially correct	10 ms	376 KB	Partially correct
18	Partially correct	10 ms	340 KB	Partially correct
19	Partially correct	10 ms	340 KB	Partially correct
20	Partially correct	10 ms	372 KB	Partially correct
21	Correct	9 ms	340 KB	Output is correct
22	Correct	8 ms	340 KB	Output is correct
23	Correct	8 ms	340 KB	Output is correct
24	Partially correct	10 ms	376 KB	Partially correct
25	Partially correct	10 ms	372 KB	Partially correct
26	Partially correct	10 ms	372 KB	Partially correct
27	Partially correct	10 ms	372 KB	Partially correct
28	Correct	9 ms	340 KB	Output is correct
29	Partially correct	10 ms	340 KB	Partially correct
30	Partially correct	10 ms	340 KB	Partially correct
31	Partially correct	10 ms	372 KB	Partially correct
32	Partially correct	10 ms	372 KB	Partially correct
33	Correct	9 ms	340 KB	Output is correct
34	Partially correct	10 ms	340 KB	Partially correct
35	Partially correct	10 ms	340 KB	Partially correct
36	Partially correct	2 ms	212 KB	Partially correct