제출 #1332077

#제출 시각아이디문제언어결과실행 시간메모리
1332077khanhphucscratch최후의 만찬 (IOI12_supper)C++20
100 / 100
294 ms8428 KiB
#include "advisor.h"
#include<bits/stdc++.h>
using namespace std;
void ComputeAdvice(int *C, int n, int k, int m)
{
    vector<int> c;
    for(int i = 0; i < k; i++) c.push_back(i);
    for(int i = 0; i < n; i++) c.push_back(C[i]);
    vector<bool> data(c.size());
    //We will send k+n bits
    vector<int> ne(c.size());
    map<int, int> f;
    for(int i = c.size()-1; i >= 0; i--){
        int &val = f[c[i]];
        if(val == 0) ne[i] = 1e9;
        else ne[i] = val;
        val = i;
    }
    vector<int> last(n); fill(last.begin(), last.end(), -1);
    set<pair<int, int>> st;
    for(int i = 0; i < c.size(); i++){
        if(st.count({i, c[i]}) == 1){
            if(last[c[i]] >= 0){
                data[last[c[i]]] = 1;
            }
            st.erase({i, c[i]});
        }
        else if(st.size() == k){
            pair<int, int> val = *st.rbegin();
            st.erase(val);
        }
        st.insert({ne[i], c[i]});
        last[c[i]] = i;
    }
    for(int i : data) WriteAdvice(i);
    for(int i : data) cerr<<i<<" ";
    cerr<<endl;
}
#include<bits/stdc++.h>
#include "assistant.h"
using namespace std;
void Assist(unsigned char *A, int n, int k, int r)
{
    set<int> cur; vector<int> will_del;
    for(int i = 0; i < k; i++){
        cur.insert(i);
        if(A[i] == 0) will_del.push_back(i);
    }
    int sz = k-1;
    for(int i = 1; i <= n; i++){
        int x = GetRequest();
        if(cur.count(x) == 1){
            if(A[++sz] == 0) will_del.push_back(x);
        }
        else{
            int y = will_del.back(); will_del.pop_back();
            PutBack(y);
            if(A[++sz] == 0) will_del.push_back(x);
            cur.insert(x); cur.erase(y);
        }
    }
}
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