oj.uz

답안 #830605

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
830605 2023-08-19T08:20:45 Z FatihSolak 드문 곤충 (IOI22_insects) C++17
76.1 / 100
 109 ms 320 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 == 1)
		return N;
	if(dif == 2){
		for(int i = 0;i<N;i++){
			if(find(v.begin(),v.end(),i) == v.end()){
				add(i);
			}
		}
		return N - now;
	}
	if(N/dif > (1<<5) && dif <= 8){
		vector<bool> found(N,0);
		int mini = 1e9;
		for(int i = 0;i<N;i++){
			if(found[i] == 0){
				while(v.size())
					del2();
				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++;
					}
				}
				mini = min(mini,cnt);
			}
		}
		return mini;
	}
	int l = 1,r = N/dif;
	while(l < r){
		int m = (l + r + 1)/2;
		int tmp = now;
		press_button();
		assert(now == tmp);
		if(now < m){
			for(int i = 0;i<N;i++){
				if(v.size() == m * dif || v.size() + N - i < m * dif)
					break;
				if(find(v.begin(),v.end(),i) == v.end()){
					add(i);
					if(now > m)
						del2();
				}
			}
		}
		else{
			while(now > m){
				del();
			}
			for(int i = 0;i<N;i++){
				if(v.size() == m * dif || v.size() + N - i < m * dif)
					break;
				if(find(v.begin(),v.end(),i) == v.end()){
					add(i);
					if(now > m)
						del2();
				}
			}
		}
		if(v.size() == m * dif){
			l  = m;
		}
		else r = m -1;
	}
	return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:86:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   86 |     if(v.size() == m * dif || v.size() + N - i < m * dif)
      |        ~~~~~~~~~^~~~~~~~~~
insects.cpp:86:48: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   86 |     if(v.size() == m * dif || v.size() + N - i < m * dif)
      |                               ~~~~~~~~~~~~~~~~~^~~~~~~~~
insects.cpp:100:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  100 |     if(v.size() == m * dif || v.size() + N - i < m * dif)
      |        ~~~~~~~~~^~~~~~~~~~
insects.cpp:100:48: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  100 |     if(v.size() == m * dif || v.size() + N - i < m * dif)
      |                               ~~~~~~~~~~~~~~~~~^~~~~~~~~
insects.cpp:109:15: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
  109 |   if(v.size() == m * dif){
      |      ~~~~~~~~~^~~~~~~~~~

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

Subtask #3
51.1 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 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 0 ms 208 KB Output is correct
7 Correct 17 ms 208 KB Output is correct
8 Correct 16 ms 320 KB Output is correct
9 Correct 45 ms 208 KB Output is correct
10 Partially correct 70 ms 300 KB Output is partially correct
11 Correct 26 ms 296 KB Output is correct
12 Correct 14 ms 208 KB Output is correct
13 Partially correct 39 ms 296 KB Output is partially correct
14 Partially correct 109 ms 292 KB Output is partially correct
15 Partially correct 59 ms 208 KB Output is partially correct
16 Partially correct 80 ms 292 KB Output is partially correct
17 Correct 35 ms 208 KB Output is correct
18 Partially correct 54 ms 292 KB Output is partially correct
19 Partially correct 58 ms 296 KB Output is partially correct
20 Partially correct 49 ms 208 KB Output is partially correct
21 Partially correct 33 ms 300 KB Output is partially correct
22 Partially correct 62 ms 296 KB Output is partially correct
23 Partially correct 49 ms 292 KB Output is partially correct
24 Correct 50 ms 292 KB Output is correct
25 Correct 23 ms 312 KB Output is correct
26 Correct 11 ms 208 KB Output is correct
27 Correct 34 ms 300 KB Output is correct
28 Correct 36 ms 208 KB Output is correct
29 Correct 33 ms 208 KB Output is correct
30 Correct 32 ms 292 KB Output is correct
31 Partially correct 58 ms 292 KB Output is partially correct
32 Partially correct 51 ms 292 KB Output is partially correct
33 Partially correct 73 ms 292 KB Output is partially correct
34 Partially correct 88 ms 208 KB Output is partially correct
35 Correct 37 ms 208 KB Output is correct
36 Correct 27 ms 292 KB Output is correct
37 Partially correct 40 ms 304 KB Output is partially correct
38 Partially correct 58 ms 300 KB Output is partially correct
39 Correct 41 ms 300 KB Output is correct
40 Correct 44 ms 208 KB Output is correct
41 Correct 39 ms 208 KB Output is correct
42 Correct 23 ms 296 KB Output is correct
43 Correct 7 ms 312 KB Output is correct
44 Correct 35 ms 296 KB Output is correct
45 Correct 35 ms 208 KB Output is correct
46 Correct 18 ms 304 KB Output is correct
47 Correct 17 ms 208 KB Output is correct
48 Correct 20 ms 208 KB Output is correct