oj.uz

Submission #1047066

# Submission time Handle Problem Language Result Execution time Memory
1047066 2024-08-07T08:27:08 Z MarwenElarbi Counting Mushrooms (IOI20_mushrooms) C++17
80.1418 / 100
 6 ms 852 KB 
#include <bits/stdc++.h>
using namespace std;
#include "mushrooms.h"
#define pb push_back
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int count_mushrooms(int n) {
	if(n==2) return 1+(1-use_machine({1,0}));
	vector<int> aa;
	aa.pb(0);
	vector<int> bb;
	int lst=3;
	vector<int> per;
	for (int i = 0; i < n; ++i) per.pb(i);
	shuffle(per.begin()+1,per.end(),rng);
	( use_machine({0,per[1]}) ? bb.pb(per[1]) : aa.pb(per[1]));
	( use_machine({0,per[2]}) ? bb.pb(per[2]) : aa.pb(per[2]));
	for (int i = 3; i+1 < min(n,284); i+=2)
	{
		if(aa.size()>=141||bb.size()>=141) break;
		lst=i+2;
		int cur;
		if(aa.size()>=2){
			cur=use_machine({per[i],aa[0],per[i+1],aa[1]});
			if(cur==0){
				aa.pb(per[i]);
				aa.pb(per[i+1]);
			}else if(cur==1){
				bb.pb(per[i]);
				aa.pb(per[i+1]);
			}else if(cur==2){
				aa.pb(per[i]);
				bb.pb(per[i+1]);
			}else if(cur==3){
				bb.pb(per[i]);
				bb.pb(per[i+1]);
			}	

		}
		else{
			cur=use_machine({per[i],bb[0],per[i+1],bb[1]});
			if(cur==0){
				bb.pb(per[i]);
				bb.pb(per[i+1]);
			}else if(cur==1){
				aa.pb(per[i]);
				bb.pb(per[i+1]);
			}else if(cur==2){
				bb.pb(per[i]);
				aa.pb(per[i+1]);
			}else if(cur==3){
				aa.pb(per[i]);
				aa.pb(per[i+1]);
			}
		}
	}
	int ans=aa.size();
	for (int i = lst; i < n; i+=140)
	{
		vector<int> cur;
		int k=0;
		for (int j = 0; j < min(n-i,140); ++j)
		{
			cur.pb(per[i+j]);
			cur.pb((aa.size()>bb.size() ? aa[k++] : bb[k++]));
		}
		int cnt=use_machine(cur);
		cnt++;
		ans+=(aa.size()<=bb.size() ? cnt/2 : cur.size()-k-cnt/2);
		if((cnt-1)%2) ((aa.size()>bb.size() ? bb.pb(per[i]) : aa.pb(per[i])));
	}
	return ans;
}

Subtask #1
80.1418 / 100.0

# 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 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 3 ms 600 KB Output is correct
8 Correct 4 ms 604 KB Output is correct
9 Correct 4 ms 600 KB Output is correct
10 Partially correct 3 ms 600 KB Output is partially correct
11 Partially correct 5 ms 600 KB Output is partially correct
12 Partially correct 3 ms 600 KB Output is partially correct
13 Correct 5 ms 600 KB Output is correct
14 Correct 3 ms 600 KB Output is correct
15 Partially correct 3 ms 852 KB Output is partially correct
16 Partially correct 4 ms 600 KB Output is partially correct
17 Correct 3 ms 552 KB Output is correct
18 Correct 5 ms 600 KB Output is correct
19 Partially correct 3 ms 600 KB Output is partially correct
20 Partially correct 3 ms 600 KB Output is partially correct
21 Partially correct 3 ms 600 KB Output is partially correct
22 Partially correct 5 ms 600 KB Output is partially correct
23 Partially correct 5 ms 600 KB Output is partially correct
24 Correct 3 ms 552 KB Output is correct
25 Partially correct 4 ms 600 KB Output is partially correct
26 Partially correct 4 ms 604 KB Output is partially correct
27 Partially correct 3 ms 600 KB Output is partially correct
28 Partially correct 3 ms 600 KB Output is partially correct
29 Partially correct 5 ms 600 KB Output is partially correct
30 Partially correct 4 ms 600 KB Output is partially correct
31 Partially correct 3 ms 600 KB Output is partially correct
32 Partially correct 4 ms 600 KB Output is partially correct
33 Partially correct 5 ms 600 KB Output is partially correct
34 Partially correct 4 ms 600 KB Output is partially correct
35 Partially correct 3 ms 600 KB Output is partially correct
36 Partially correct 5 ms 600 KB Output is partially correct
37 Partially correct 3 ms 600 KB Output is partially correct
38 Partially correct 3 ms 600 KB Output is partially correct
39 Partially correct 3 ms 600 KB Output is partially correct
40 Partially correct 5 ms 600 KB Output is partially correct
41 Partially correct 4 ms 600 KB Output is partially correct
42 Partially correct 3 ms 600 KB Output is partially correct
43 Partially correct 6 ms 600 KB Output is partially correct
44 Partially correct 5 ms 600 KB Output is partially correct
45 Partially correct 5 ms 600 KB Output is partially correct
46 Partially correct 3 ms 600 KB Output is partially correct
47 Partially correct 5 ms 600 KB Output is partially correct
48 Partially correct 4 ms 600 KB Output is partially correct
49 Partially correct 3 ms 600 KB Output is partially correct
50 Partially correct 4 ms 600 KB Output is partially correct
51 Partially correct 3 ms 600 KB Output is partially correct
52 Partially correct 3 ms 600 KB Output is partially correct
53 Partially correct 3 ms 600 KB Output is partially correct
54 Partially correct 3 ms 600 KB Output is partially correct
55 Partially correct 5 ms 600 KB Output is partially correct
56 Partially correct 5 ms 600 KB Output is partially correct
57 Partially correct 3 ms 600 KB Output is partially correct
58 Partially correct 5 ms 600 KB Output is partially correct
59 Partially correct 3 ms 600 KB Output is partially correct
60 Partially correct 5 ms 600 KB Output is partially correct
61 Partially correct 6 ms 600 KB Output is partially correct
62 Correct 0 ms 344 KB Output is correct
63 Correct 0 ms 344 KB Output is correct
64 Correct 0 ms 344 KB Output is correct
65 Correct 0 ms 344 KB Output is correct
66 Correct 0 ms 344 KB Output is correct
67 Correct 0 ms 344 KB Output is correct
68 Correct 0 ms 344 KB Output is correct
69 Correct 1 ms 344 KB Output is correct
70 Correct 0 ms 344 KB Output is correct
71 Correct 0 ms 344 KB Output is correct
72 Correct 0 ms 344 KB Output is correct
73 Correct 0 ms 344 KB Output is correct
74 Correct 0 ms 344 KB Output is correct
75 Correct 0 ms 344 KB Output is correct
76 Correct 0 ms 344 KB Output is correct
77 Correct 0 ms 344 KB Output is correct
78 Correct 0 ms 344 KB Output is correct
79 Correct 0 ms 344 KB Output is correct
80 Correct 0 ms 344 KB Output is correct
81 Correct 0 ms 344 KB Output is correct
82 Correct 0 ms 344 KB Output is correct
83 Correct 0 ms 344 KB Output is correct
84 Correct 0 ms 344 KB Output is correct
85 Correct 0 ms 344 KB Output is correct
86 Correct 0 ms 344 KB Output is correct
87 Correct 0 ms 344 KB Output is correct
88 Correct 0 ms 344 KB Output is correct
89 Correct 0 ms 344 KB Output is correct
90 Correct 0 ms 344 KB Output is correct
91 Correct 0 ms 344 KB Output is correct