Submission #122169

#	Time	Username	Problem	Language	Result	Execution time	Memory
122169		TadijaSebez	최후의 만찬 (IOI12_supper)	C++11	100 / 100	87 ms	12400 KiB

advisor

#include <bits/stdc++.h>
using namespace std;
#include "advisor.h"
#define pb push_back
const int N=100050;
int last[N],go[N];
bool in[N];
pair<int,pair<int,int>> l[N];
bool was[2*N];
void ComputeAdvice(int *C, int n, int k, int M)
{
	priority_queue<pair<int,pair<int,int>>> pq,rq;
	for(int i=0;i<n;i++) last[i]=n;
	for(int i=n-1;i>=0;i--) go[i]=last[C[i]],last[C[i]]=i;
	for(int i=0;i<k;i++)
	{
		pq.push({last[i],{i,i}});
		in[i]=1;
		l[i]={last[i],{i,i}};
	}
	for(int i=0;i<n;i++)
	{
		while(pq.size() && rq.size() && pq.top()==rq.top()) pq.pop(),rq.pop();
		if(in[C[i]])
		{
			rq.push(l[C[i]]);
			l[C[i]]={go[i],{C[i],i+k}};
			pq.push(l[C[i]]);
		}
		else
		{
			was[pq.top().second.second]=1;
			in[pq.top().second.first]=0;
			rq.push(pq.top());
			l[C[i]]={go[i],{C[i],i+k}};
			pq.push(l[C[i]]);
			in[C[i]]=1;
		}
	}
	for(int i=0;i<n+k;i++) WriteAdvice((unsigned char)was[i]);
}

assistant

#include <bits/stdc++.h>
using namespace std;
#include "assistant.h"
#define pb push_back
const int N=100050;
void Assist(unsigned char *A, int n, int k, int R)
{
	vector<int> del;
	vector<int> in(n,0);
	for(int i=0;i<k;i++) in[i]=1;
	for(int i=0;i<k;i++) if(A[i]) del.pb(i);
	for(int i=0;i<n;i++)
	{
		int x=GetRequest();
		if(!in[x])
		{
			PutBack(del.back());
			in[del.back()]=0;
			in[x]=1;
			del.pop_back();
		}
		if(A[i+k]) del.pb(x);
	}
}

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 35 / 35
• Subtask 5: 39 / 39