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Submission #1047059

# Submission time Handle Problem Language Result Execution time Memory
1047059 2024-08-07T08:22:33 Z MarwenElarbi Counting Mushrooms (IOI20_mushrooms) C++17
0 / 100
 3 ms 344 KB 
#include <bits/stdc++.h>
using namespace std;
#include "mushrooms.h"
#define pb push_back
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;
	( use_machine({0,1}) ? bb.pb(1) : aa.pb(1));
	( use_machine({0,2}) ? bb.pb(2) : aa.pb(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({i,aa[0],i+1,aa[1]});
			if(cur==0){
				aa.pb(i);
				aa.pb(i+1);
			}else if(cur==1){
				bb.pb(i);
				aa.pb(i+1);
			}else if(cur==2){
				aa.pb(i);
				bb.pb(i+1);
			}else if(cur==3){
				bb.pb(i);
				bb.pb(i+1);
			}	

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

Subtask #1
0 / 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 344 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 1 ms 344 KB Output is correct
7 Correct 2 ms 344 KB Output is correct
8 Correct 2 ms 344 KB Output is correct
9 Correct 2 ms 344 KB Output is correct
10 Partially correct 2 ms 344 KB Output is partially correct
11 Incorrect 3 ms 344 KB Answer is not correct.
12 Halted 0 ms 0 KB -