oj.uz

답안 #830919

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
830919 2023-08-19T12:56:19 Z FatihSolak 드문 곤충 (IOI22_insects) C++17
99.89 / 100
 56 ms 416 KB 
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;
	
int min_cardinality(int N){
	mt19937 rng(chrono::steady_clock().now().time_since_epoch().count());
	vector<int> ord;
	for(int i = 0;i<N;i++){
		ord.push_back(i);
	}
	shuffle(ord.begin(),ord.end(),rng);
	vector<int> v;
	int now = 0;
	int dif = 0;
	auto add = [&](int x){
		v.push_back(x);
		move_inside(ord[x]);
		now = press_button();
	};
	auto del = [&](){
		move_outside(ord[v.back()]);
		v.pop_back();
		now = press_button();
	};
	auto del2 = [&](){
		move_outside(ord[v.back()]);
		v.pop_back();
		now--;
	};
	auto del3 = [&](){
		move_outside(ord[v.back()]);
		v.pop_back();
	};
	add(0);
	dif = 1;
	for(int i = 1;i<N;i++){
		add(i);
		if(now == 2){
			del2();
		}
		else dif++;
	}
	if(dif <= 3){
		vector<bool> found(N,0);
		int mini = 1e9;
		int rem = N;
		for(int i = 0;i<N && dif > 1;i++){
			if(found[i] == 0){
				dif--;
				while(v.size())
					del3();
				now = 0;
				int cnt = 0;
				for(int j = 0;j<N;j++){
					if(found[j])continue;
					add(j);
					if(now != cnt + 1){
						del3();
					}
					else{
						found[j] = 1;
						cnt++;
						rem--;
					}
				}
				mini = min(mini,cnt);
			}
		}
		mini = min(mini,rem);
		return mini;
	}
	vector<int> ban(N,0);
	int l = 1,r = N/dif;
	int ext = 0;
	while(l < r){
		int num = 0;
		for(int i = 0;i<N;i++){
			num += !ban[i];
		}
		r = min(r,ext + num/dif);
		int m = (l + r + 1)/2;
		if(now < m-ext){
			for(int i = 0;i<N;i++){
				if(ban[i] == 0 && find(v.begin(),v.end(),i) == v.end()){
					add(i);
					if(now > m - ext)
						del2();
				}
			}
		}
		else{
			while(v.size()){
				del3();
			}
			now = 0;
			for(int i = 0;i<N;i++){
				if(ban[i] == 0 && find(v.begin(),v.end(),i) == v.end()){
					add(i);
					if(now > m - ext)
						del2();
				}
			}
		}
		if(v.size() == (m-ext) * dif){
			for(auto u:v){
				ban[u] = 1;
			}
			while(v.size())
				del3();
			now = 0;
			ext = m;
			l  = m;
		}
		else{
			r = m -1;
			for(int i = 0;i<N;i++){
				if(find(v.begin(),v.end(),i) == v.end()){
					ban[i] = 1;
				}
			}
		}
	}
	return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:104:15: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  104 |   if(v.size() == (m-ext) * dif){
      |      ~~~~~~~~~^~~~~~~~~~~~~~~~
insects.cpp:20:7: warning: variable 'del' set but not used [-Wunused-but-set-variable]
   20 |  auto del = [&](){
      |       ^~~

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 4 ms 208 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 5 ms 208 KB Output is correct
17 Correct 4 ms 208 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 3 ms 208 KB Output is correct
20 Correct 4 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct

Subtask #2
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 0 ms 208 KB Output is correct
6 Correct 2 ms 208 KB Output is correct
7 Correct 1 ms 208 KB Output is correct
8 Correct 4 ms 208 KB Output is correct
9 Correct 6 ms 208 KB Output is correct
10 Correct 4 ms 208 KB Output is correct
11 Correct 1 ms 208 KB Output is correct
12 Correct 4 ms 208 KB Output is correct
13 Correct 4 ms 208 KB Output is correct
14 Correct 4 ms 208 KB Output is correct
15 Correct 4 ms 208 KB Output is correct
16 Correct 5 ms 208 KB Output is correct
17 Correct 4 ms 208 KB Output is correct
18 Correct 5 ms 208 KB Output is correct
19 Correct 3 ms 208 KB Output is correct
20 Correct 4 ms 208 KB Output is correct
21 Correct 3 ms 208 KB Output is correct
22 Correct 1 ms 208 KB Output is correct
23 Correct 8 ms 208 KB Output is correct
24 Correct 8 ms 208 KB Output is correct
25 Correct 24 ms 292 KB Output is correct
26 Correct 19 ms 208 KB Output is correct
27 Correct 13 ms 288 KB Output is correct
28 Correct 9 ms 208 KB Output is correct
29 Correct 20 ms 208 KB Output is correct
30 Correct 26 ms 312 KB Output is correct
31 Correct 17 ms 312 KB Output is correct
32 Correct 18 ms 208 KB Output is correct
33 Correct 15 ms 308 KB Output is correct
34 Correct 18 ms 308 KB Output is correct
35 Correct 24 ms 208 KB Output is correct
36 Correct 19 ms 312 KB Output is correct
37 Correct 20 ms 308 KB Output is correct
38 Correct 20 ms 208 KB Output is correct
39 Correct 19 ms 208 KB Output is correct
40 Correct 14 ms 208 KB Output is correct
41 Correct 9 ms 208 KB Output is correct

Subtask #3
74.89 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 0 ms 208 KB Output is correct
3 Correct 0 ms 208 KB Output is correct
4 Correct 0 ms 208 KB Output is correct
5 Correct 1 ms 208 KB Output is correct
6 Correct 0 ms 208 KB Output is correct
7 Correct 12 ms 208 KB Output is correct
8 Correct 17 ms 208 KB Output is correct
9 Correct 47 ms 328 KB Output is correct
10 Correct 38 ms 304 KB Output is correct
11 Correct 30 ms 296 KB Output is correct
12 Correct 20 ms 208 KB Output is correct
13 Correct 40 ms 292 KB Output is correct
14 Correct 46 ms 416 KB Output is correct
15 Correct 46 ms 304 KB Output is correct
16 Correct 31 ms 308 KB Output is correct
17 Correct 32 ms 308 KB Output is correct
18 Correct 53 ms 304 KB Output is correct
19 Partially correct 25 ms 304 KB Output is partially correct
20 Correct 50 ms 300 KB Output is correct
21 Correct 35 ms 296 KB Output is correct
22 Correct 34 ms 300 KB Output is correct
23 Correct 37 ms 304 KB Output is correct
24 Correct 21 ms 316 KB Output is correct
25 Correct 29 ms 316 KB Output is correct
26 Correct 18 ms 300 KB Output is correct
27 Correct 45 ms 296 KB Output is correct
28 Correct 48 ms 208 KB Output is correct
29 Partially correct 48 ms 308 KB Output is partially correct
30 Partially correct 52 ms 296 KB Output is partially correct
31 Correct 48 ms 308 KB Output is correct
32 Correct 37 ms 304 KB Output is correct
33 Correct 44 ms 316 KB Output is correct
34 Correct 24 ms 312 KB Output is correct
35 Partially correct 51 ms 308 KB Output is partially correct
36 Partially correct 45 ms 308 KB Output is partially correct
37 Correct 47 ms 296 KB Output is correct
38 Correct 43 ms 304 KB Output is correct
39 Correct 46 ms 300 KB Output is correct
40 Correct 33 ms 308 KB Output is correct
41 Partially correct 56 ms 292 KB Output is partially correct
42 Partially correct 38 ms 304 KB Output is partially correct
43 Correct 11 ms 308 KB Output is correct
44 Correct 20 ms 340 KB Output is correct
45 Correct 27 ms 300 KB Output is correct
46 Correct 20 ms 208 KB Output is correct
47 Correct 28 ms 312 KB Output is correct
48 Correct 27 ms 208 KB Output is correct