oj.uz

Submission #304458

# Submission time Handle Problem Language Result Execution time Memory
304458 2020-09-21T11:23:40 Z arnold518 Counting Mushrooms (IOI20_mushrooms) C++14
0 / 100
 126 ms 664 KB 
#include "mushrooms.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 2e4;
const int SQ = 5000;

int N;

int query(vector<int> V)
{
	return use_machine(V);
}

int count_mushrooms(int _N)
{
	N=_N;

	vector<int> A, B;
	A.push_back(0);

	int p, ans=0;
	for(p=1; p<N && A.size()<=SQ && B.size()<=SQ; p++)
	{
		if(query({0, p})) B.push_back(p);
		else A.push_back(p);
	}
	ans=A.size();

	//printf("%d %d\n", p, A.size());

	if(A.size()>=SQ)
	{
		while(p<N)
		{
			int i, j;
			vector<int> V;
			for(j=0; p<N && j<SQ; p++, j++)
			{
				V.push_back(A[j]);
				V.push_back(p);
			}
			V.push_back(A[j]);
			ans+=j-query(V)/2;
		}
	}
	else
	{
		while(p<N)
		{
			int i, j;
			vector<int> V;
			for(j=0; p<N && j<SQ; p++, j++)
			{
				V.push_back(B[j]);
				V.push_back(p);
			}
			V.push_back(B[j]);
			ans+=query(V)/2;
		}
	}

	return ans;
}

Compilation message

mushrooms.cpp: In function 'int count_mushrooms(int)':
mushrooms.cpp:40:8: warning: unused variable 'i' [-Wunused-variable]
   40 |    int i, j;
      |        ^
mushrooms.cpp:55:8: warning: unused variable 'i' [-Wunused-variable]
   55 |    int i, j;
      |        ^

Subtask #1
0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 308 KB Output is correct
2 Correct 1 ms 256 KB Output is correct
3 Correct 1 ms 256 KB Output is correct
4 Correct 1 ms 256 KB Output is correct
5 Correct 2 ms 256 KB Output is correct
6 Partially correct 19 ms 384 KB Output is partially correct
7 Partially correct 65 ms 560 KB Output is partially correct
8 Partially correct 79 ms 520 KB Output is partially correct
9 Partially correct 56 ms 572 KB Output is partially correct
10 Partially correct 70 ms 504 KB Output is partially correct
11 Partially correct 126 ms 664 KB Output is partially correct
12 Partially correct 81 ms 616 KB Output is partially correct
13 Partially correct 54 ms 544 KB Output is partially correct
14 Partially correct 99 ms 448 KB Output is partially correct
15 Partially correct 90 ms 588 KB Output is partially correct
16 Partially correct 114 ms 572 KB Output is partially correct
17 Partially correct 63 ms 424 KB Output is partially correct
18 Partially correct 68 ms 524 KB Output is partially correct
19 Partially correct 70 ms 584 KB Output is partially correct
20 Partially correct 71 ms 544 KB Output is partially correct
21 Partially correct 72 ms 544 KB Output is partially correct
22 Partially correct 68 ms 588 KB Output is partially correct
23 Partially correct 62 ms 568 KB Output is partially correct
24 Partially correct 78 ms 448 KB Output is partially correct
25 Incorrect 107 ms 572 KB Answer is not correct.
26 Halted 0 ms 0 KB -