Submission #1176923

#	Time	Username	Problem	Language	Result	Execution time	Memory
1176923		simona1230	Last supper (IOI12_supper)	C++20	33 / 100	238 ms	12952 KiB

advisor

#include <bits/stdc++.h>
#include "advisor.h"
using namespace std;

int a[100001],b;
void bin(int x)
{
    for(int i=0; i<b; i++)
    {
        if(x&(1<<i))
        {
            //cout<<1;
            WriteAdvice(1);
        }
        else
        {
            //cout<<0;
            WriteAdvice(0);
        }
    }
}

int id[100000];
vector<int> p[100000];
int in[100000],d[100000];

void ComputeAdvice(int *c, int n, int k, int m)
{
    int y=1;
    while(y<=k)y*=2,b++;
    for(int i=0;i<n;i++)
        p[c[i]].push_back(i);
    for(int i=0;i<n;i++)
        p[i].push_back(n);

    priority_queue<pair<int,int> > q;
    for(int i=0;i<k;i++)
    {
        in[i]=i;
        d[i]=1;
        q.push({p[i][0],i});
    }
    for(int i=0;i<n;i++)
    {
        int x=q.top().second;
        if(d[c[i]]==0)
        {
            //cout<<x<<" "<<in[x]<<" "<<d[c[i]]<<endl;
            q.pop();
            bin(in[x]);
            in[c[i]]=in[x];
            d[x]=0;
            d[c[i]]=1;
        }
        else bin(k);
        id[c[i]]++;
        q.push({p[c[i]][id[c[i]]],c[i]});
    }
}

assistant

#include <bits/stdc++.h>
#include "assistant.h"
using namespace std;

int op[100000];
int c[100001],B;
int dec(string s)
{
    int x=0;
    for(int i=0;i<B;i++)
        if(s[i]=='1')x+=(1<<i);
    return x;
}

void Assist(unsigned char *a, int n, int k, int r)
{
    for(int i=0;i<k;i++)
        c[i]=i,op[i]=i;
    int y=1;
    while(y<=k)y*=2,B++;
    int z=-1;
    for(int i=0;i<r;i+=B)
    {
        z++;
        int r=GetRequest();
        string s="";
        for(int j=0;j<B;j++)
            if(a[i+j])s+='1';
            else s+='0';
        int x=dec(s);
        if(x==k)continue;
        PutBack(c[x]);
        c[x]=r;
    }
}

• Subtask 1: 8 / 8
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 0 / 35
• Subtask 5: 7.3125 / 39