oj.uz

Submission #1057967

# Submission time Handle Problem Language Result Execution time Memory
1057967 2024-08-14T07:42:33 Z Dan4Life Rarest Insects (IOI22_insects) C++17
25 / 100
 2000 ms 218872 KB 
#include "insects.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) begin(a), end(a)
using vi = vector<int>;
using ll = long long;
using ar2 = array<ll,2>;
using ar3 = array<ll,3>;
const int mxN = (int)2e3+10;
int n, cnt[mxN];
vi v, others;
set<int> S;
map<set<int>,int> M;

bool move_in(int i){
	if(S.count(i)) return 0;
	S.insert(i); move_inside(i);
	return 1;
}

bool move_out(int i){
	if(!S.count(i)) return 0;
	S.erase(i); move_outside(i);
	return 1;
}

int press(){
	if(sz(S)==1) return 1;
	if(M.count(S)) return M[S];
	return M[S] = press_button(); 
}

int min_cardinality(int N) {
	n = N; int ans = n, D=n;
	vector<int> xd(n,0); iota(all(xd),0);
	random_shuffle(all(xd));
	for(int i = 0; i < n; i++){
		move_in(xd[i]);
		if(press()==2) move_out(xd[i]), D--;
	}
	for(int i = 0; i < n; i++) move_out(xd[i]);
	int l = 1, r = n;
	while(l<r){
		int mid = (l+r+1)/2, tot=n;
		vi undo; undo.clear();
		for(int i = 0; i < n; i++){
			if(!move_in(xd[i])) continue;
			if(press()>mid) move_out(xd[i]), tot--;
			else undo.pb(xd[i]);
		}
		if(tot==D*mid) l = mid;
		else{
			for(auto u : undo) move_out(u);
			r=mid-1;
		}
	}
	return l;
}

Compilation message

insects.cpp: In function 'int min_cardinality(int)':
insects.cpp:36:13: warning: unused variable 'ans' [-Wunused-variable]
   36 |  n = N; int ans = n, D=n;
      |             ^~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 596 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 8 ms 2604 KB Output is correct
7 Correct 10 ms 1368 KB Output is correct
8 Correct 8 ms 2024 KB Output is correct
9 Correct 16 ms 3728 KB Output is correct
10 Correct 10 ms 2000 KB Output is correct
11 Correct 19 ms 4892 KB Output is correct
12 Correct 14 ms 2904 KB Output is correct
13 Correct 11 ms 2904 KB Output is correct
14 Correct 10 ms 3416 KB Output is correct
15 Correct 11 ms 3928 KB Output is correct
16 Correct 13 ms 4516 KB Output is correct
17 Correct 15 ms 3416 KB Output is correct
18 Correct 16 ms 3812 KB Output is correct
19 Correct 14 ms 4216 KB Output is correct
20 Correct 13 ms 3248 KB Output is correct
21 Correct 12 ms 3416 KB Output is correct
22 Correct 11 ms 2904 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 596 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 8 ms 2604 KB Output is correct
7 Correct 10 ms 1368 KB Output is correct
8 Correct 8 ms 2024 KB Output is correct
9 Correct 16 ms 3728 KB Output is correct
10 Correct 10 ms 2000 KB Output is correct
11 Correct 19 ms 4892 KB Output is correct
12 Correct 14 ms 2904 KB Output is correct
13 Correct 11 ms 2904 KB Output is correct
14 Correct 10 ms 3416 KB Output is correct
15 Correct 11 ms 3928 KB Output is correct
16 Correct 13 ms 4516 KB Output is correct
17 Correct 15 ms 3416 KB Output is correct
18 Correct 16 ms 3812 KB Output is correct
19 Correct 14 ms 4216 KB Output is correct
20 Correct 13 ms 3248 KB Output is correct
21 Correct 12 ms 3416 KB Output is correct
22 Correct 11 ms 2904 KB Output is correct
23 Correct 131 ms 54984 KB Output is correct
24 Correct 321 ms 23888 KB Output is correct
25 Correct 214 ms 27468 KB Output is correct
26 Correct 335 ms 108108 KB Output is correct
27 Correct 146 ms 39080 KB Output is correct
28 Correct 333 ms 141028 KB Output is correct
29 Correct 209 ms 58184 KB Output is correct
30 Correct 273 ms 62008 KB Output is correct
31 Correct 228 ms 83156 KB Output is correct
32 Correct 250 ms 85628 KB Output is correct
33 Correct 274 ms 92772 KB Output is correct
34 Correct 248 ms 79104 KB Output is correct
35 Correct 345 ms 92060 KB Output is correct
36 Correct 304 ms 95604 KB Output is correct
37 Correct 326 ms 95536 KB Output is correct
38 Correct 330 ms 84064 KB Output is correct
39 Correct 299 ms 78012 KB Output is correct
40 Correct 319 ms 76740 KB Output is correct
41 Correct 350 ms 79332 KB Output is correct

Subtask #3
0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 344 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Partially correct 0 ms 344 KB Output is partially correct
7 Correct 582 ms 218872 KB Output is correct
8 Execution timed out 2346 ms 94932 KB Time limit exceeded
9 Halted 0 ms 0 KB -