oj.uz

답안 #828432

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
828432 2023-08-17T09:29:27 Z 반딧불(#10380) Toxic Gene (NOI23_toxic) C++17
94.6 / 100
 23 ms 468 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
94.6 / 100.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 15 ms 340 KB Output is correct
3 Correct 17 ms 376 KB Output is correct
4 Partially correct 15 ms 376 KB Partially correct
5 Partially correct 19 ms 376 KB Partially correct
6 Partially correct 19 ms 376 KB Partially correct
7 Partially correct 21 ms 380 KB Partially correct
8 Partially correct 19 ms 340 KB Partially correct
9 Partially correct 19 ms 376 KB Partially correct
10 Partially correct 19 ms 352 KB Partially correct
11 Partially correct 19 ms 372 KB Partially correct
12 Correct 15 ms 380 KB Output is correct
13 Correct 15 ms 376 KB Output is correct
14 Correct 15 ms 380 KB Output is correct
15 Partially correct 18 ms 372 KB Partially correct
16 Partially correct 18 ms 340 KB Partially correct
17 Partially correct 18 ms 340 KB Partially correct
18 Correct 21 ms 468 KB Output is correct
19 Partially correct 19 ms 340 KB Partially correct
20 Partially correct 19 ms 340 KB Partially correct
21 Partially correct 18 ms 372 KB Partially correct
22 Correct 15 ms 340 KB Output is correct
23 Partially correct 14 ms 376 KB Partially correct
24 Correct 15 ms 376 KB Output is correct
25 Correct 15 ms 340 KB Output is correct
26 Correct 15 ms 340 KB Output is correct
27 Correct 15 ms 376 KB Output is correct
28 Correct 15 ms 372 KB Output is correct
29 Partially correct 18 ms 380 KB Partially correct
30 Partially correct 23 ms 372 KB Partially correct
31 Partially correct 18 ms 372 KB Partially correct
32 Partially correct 18 ms 352 KB Partially correct
33 Partially correct 22 ms 460 KB Partially correct
34 Partially correct 18 ms 372 KB Partially correct
35 Partially correct 22 ms 376 KB Partially correct
36 Correct 3 ms 212 KB Output is correct