Submission #1072715

#	Time	Username	Problem	Language	Result	Execution time	Memory
1072715		SiliconSquared	Minerals (JOI19_minerals)	C++14	40 / 100	1282 ms	1880 KiB

minerals

#include "minerals.h"

using namespace std;
#include <vector>
#include <iostream>

int query(int x){return Query(x+1);}

int n;
struct mineral{
    int a,b;
    mineral(){a=0;b=n;}
};
vector<mineral> v;
vector<int> l;
vector<int> r;

void f(int a,int b){
    // cerr<<a<<','<<b<<';';
    for (int i=a;i<b;i++){
        query(l[i]);
    }
    for (int i=0;i<n;i++){
        if (v[i].a<=a && v[i].b>=b){
            if (query(r[i])>(b-a)){
                v[i].a=b;
            }else{
                v[i].b=b;
            }
            query(r[i]);
        }
    }
    for (int i=a;i<b;i++){
        query(l[i]);
    }
}

void Solve(int N) {
    int a,b,c;
    n=N;
    b=0;
    for (int i=0;i<2*n;i++){
        a=query(i);
        if (a>b){
            l.push_back(i);
            b=a;
        }else{
            r.push_back(i);
        }
    }
    for (int i=0;i<2*n;i++){query(i);}
    v.resize(n,mineral());
    vector<pair<int,int>> w;
    w.push_back({0,N});
    while (!w.empty()){
        a=w[w.size()-1].first;
        b=w[w.size()-1].second;
        c=(a+b)/2;
        w.pop_back();
        if (a+1==b||a==b){continue;}
        f(a,c);
        w.push_back({a,c});
        w.push_back({c,b});
    }
    for (int i=0;i<n;i++){
        Answer(r[i]+1,l[v[i].a]+1);
    }
}

• Subtask 1: 6 / 6
• Subtask 2: 25 / 25
• Subtask 3: 9 / 9
• Subtask 4: 0 / 30
• Subtask 5: 0 / 5
• Subtask 6: 0 / 5
• Subtask 7: 0 / 5
• Subtask 8: 0 / 5
• Subtask 9: 0 / 10