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답안 #828423

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
828423 2023-08-17T09:28:08 Z 반딧불(#10380) Toxic Gene (NOI23_toxic) C++17
90.55 / 100
 25 ms 384 KB 
#include "toxic.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
const int G = 8, B = 8;

vector<int> searchRange;
vector<int> toxicVec, elseVec;
int know[302]; /// 1인지 2인지 알 때
int idx[302];
int ans[302]; /// 0: toxic, 1: regular, 2: strong
char chr[] = "TRS";

int query(vector<int> v){
	vector<int> v2;
	for(int x: v) v2.push_back(idx[x]);
	return query_sample(v2);
}

int queryRange(vector<int> vec, int l, int r){ /// 구간이 모두 독성이 아닌가?
	//printf("Queried "); for(int i=l; i<=r; i++) printf("%d ", vec[i]);
	//puts("");

	vector<int> vec2;
	for(int i=l; i<=r; i++) vec2.push_back(vec[i]);
	vec = vec2;

	vector<int> v;
	int cnt = 0;
	while((int)vec.size() < B && !elseVec.empty()) cnt++, vec.push_back(elseVec.back()), elseVec.pop_back();
	for(int i=0; i<(int)vec.size(); i++) for(int j=0; j<(1<<i); j++) v.push_back(vec[i]);
	int val = query(v), sz = (int)v.size();

	//printf("New vec: "); for(int x: vec) printf("%d ", x); puts("");
	//printf("New v: "); for(int x: v) printf("%d ", x); puts("");
	//printf("val: %d (expected %d)\n", val, sz);

	if(val != sz){
		for(int i=0; i<(int)vec.size(); i++) know[vec[i]] = 1 + ((val>>i)&1);
	}
	else while(cnt--) elseVec.push_back(vec.back()), vec.pop_back();
	return val == sz;
}

void findToxic(vector<int> &v){
	if((int)toxicVec.size() == 30) return;
	if(queryRange(v, 0, (int)v.size()-1)){
		for(int x: v) elseVec.push_back(x);
		return;
	}
	int L = 0, R = (int)v.size()-1;
	while(L<R){
		int M = (L+R)/2;
		if(queryRange(v, L, M)) L=M+1;
		else R=M;
	}
	toxicVec.push_back(v[L]);

	for(int i=0; i<L; i++) elseVec.push_back(v[i]);
	for(int i=L+1; i<(int)v.size(); i++) searchRange.push_back(v[i]);
}

void determine_type(int n){
	toxicVec.clear();
	elseVec.clear();
	searchRange.clear();
	memset(ans, 0, sizeof(ans));
	memset(know, 0, sizeof(know));

	for(int i=1; i<=n; i++) idx[i] = i, searchRange.push_back(i);
	srand(time(NULL));
	random_shuffle(idx+1, idx+n+1);
	//for(int i=1; i<=n; i++) printf("idx[%d] = %d\n", i, idx[i]);
	
	while(!searchRange.empty()){
		vector<int> v;
		for(int i=0; !searchRange.empty() && i<G; i++){
			v.push_back(searchRange[0]);
			searchRange.erase(searchRange.begin());
		}
		findToxic(v);
	}

	for(int i=1; i<=n; i++) ans[i] = 1;
	for(int x: toxicVec) ans[x] = 0;
	for(int i=1; i<=n; i++){
		if(!ans[i]) continue;
		if(know[i]) ans[i] = know[i];
		// else elseVec.push_back(i);
	}

	#ifdef TESTS
	printf("know: "); for(int i=1; i<=n; i++) printf("%d", know[i]);
	puts("");
	printf("ToxicVec: "); for(int x: toxicVec) printf("%d ", x);
	puts("");
	printf("ElseVec: "); for(int x: elseVec) printf("%d ", x);
	puts("");
	#endif

	int tox = toxicVec[0];
	for(int l=0; l<(int)elseVec.size(); l+=B){
		int r = min(l+B-1, (int)elseVec.size()-1);
		int d = r-l+1;
		vector<int> v (1, tox);
		for(int i=0; i<d; i++) for(int j=0; j<(1<<i); j++) v.push_back(elseVec[l+i]);
		int val = query(v);
		for(int i=0; i<d; i++) if((val>>i)&1) ans[elseVec[l+i]] = 2;
	}

	for(int i=1; i<=n; i++) answer_type(idx[i], chr[ans[i]]);
}

Subtask #1
90.55 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 15 ms 376 KB Output is correct
3 Correct 15 ms 372 KB Output is correct
4 Correct 16 ms 380 KB Output is correct
5 Correct 18 ms 376 KB Output is correct
6 Correct 19 ms 340 KB Output is correct
7 Correct 18 ms 380 KB Output is correct
8 Correct 19 ms 380 KB Output is correct
9 Correct 18 ms 340 KB Output is correct
10 Correct 18 ms 340 KB Output is correct
11 Correct 18 ms 380 KB Output is correct
12 Correct 15 ms 372 KB Output is correct
13 Correct 16 ms 384 KB Output is correct
14 Correct 15 ms 340 KB Output is correct
15 Partially correct 23 ms 376 KB Partially correct
16 Partially correct 18 ms 340 KB Partially correct
17 Partially correct 18 ms 340 KB Partially correct
18 Partially correct 18 ms 376 KB Partially correct
19 Partially correct 19 ms 340 KB Partially correct
20 Partially correct 19 ms 372 KB Partially correct
21 Partially correct 18 ms 376 KB Partially correct
22 Partially correct 20 ms 376 KB Partially correct
23 Partially correct 16 ms 376 KB Partially correct
24 Correct 15 ms 340 KB Output is correct
25 Correct 15 ms 256 KB Output is correct
26 Correct 16 ms 376 KB Output is correct
27 Correct 15 ms 340 KB Output is correct
28 Correct 15 ms 380 KB Output is correct
29 Partially correct 21 ms 372 KB Partially correct
30 Correct 19 ms 384 KB Output is correct
31 Partially correct 19 ms 376 KB Partially correct
32 Correct 23 ms 340 KB Output is correct
33 Partially correct 25 ms 356 KB Partially correct
34 Partially correct 24 ms 376 KB Partially correct
35 Partially correct 18 ms 368 KB Partially correct
36 Correct 2 ms 212 KB Output is correct