Submission #725007

#	Time	Username	Problem	Language	Result	Execution time	Memory
725007		FatihSolak	Art Collections (BOI22_art)	C++17	100 / 100	1572 ms	692 KiB

art

#include "art.h"
#include <bits/stdc++.h>
using namespace std;
int n;
bool cmp(int a,int b){
    vector<int> ask1 = {a,b};
    vector<int> ask2 = {b,a};
    for(int i = 1;i<=n;i++){
        if(i != a && i != b){
            ask1.push_back(i);
            ask2.push_back(i);
        }
    }
    if(publish(ask1) > publish(ask2)){
        return 1;
    }
    return 0;
}
vector<int> srt(vector<int> v){
    if(v.size() == 1){
        return v;
    }
    vector<int> a;
    vector<int> b;
    int asz = v.size()/2;
    int bsz = v.size()-asz;
    for(int i = 0;i<asz;i++){
        a.push_back(v[i]);
    }
    for(int i = asz;i<asz+bsz;i++){
        b.push_back(v[i]);
    }
    a = srt(a);
    b = srt(b);
    vector<int> ret;
    int pt1 = 0;
    for(int i = 0;i<asz;){
        if(pt1 < bsz && cmp(a[i],b[pt1])){
            ret.push_back(b[pt1]);
            pt1++;
        }
        else{
            ret.push_back(a[i]);
            i++;
        }
    }
    while(pt1 <bsz){
        ret.push_back(b[pt1]);
        pt1++;
    }
    return ret;
}
void solve(int N) {
    n = N;
    vector<int> order;
    vector<int> pos(N+1);
    for(int i = 1;i<=N;i++){
        order.push_back(i);
    }
    //order = srt(order);
    int last = publish(order);
    for(int i = 1;i<n;i++){
        vector<int> nw;
        for(int i = 1;i<n;i++)
            nw.push_back(order[i]);
        nw.push_back(order[0]);
        order = nw;
        int now = publish(order);
        int delta = now - last;
        //cout << last << " " << now << endl;
        pos[i] = (delta - n - 1)/-2;
        last = now;
    } 
    vector<int> ans(N+1,N);
    for(int i = 1;i<n;i++){
        ans[pos[i]] = i;
    }
    order.clear();
    for(int i = 1;i<=N;i++){
        order.push_back(ans[i]);
    }
    answer(order);
}

Compilation message (stderr)

interface.cpp: In function 'int publish(std::vector<int>)':
interface.cpp:20:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~
interface.cpp: In function 'void answer(std::vector<int>)':
interface.cpp:36:17: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   36 |     if(v.size() != N) {
      |        ~~~~~~~~~^~~~

• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 15 / 15
• Subtask 4: 15 / 15
• Subtask 5: 20 / 20
• Subtask 6: 30 / 30