Submission #853361

#	Time	Username	Problem	Language	Result	Execution time	Memory
853361		vjudge1	Art Collections (BOI22_art)	C++17	70 / 100	1134 ms	1736 KiB

art

#include "art.h"
#include <bits/stdc++.h>

using namespace std;

vector<int> rel = {2, 3, 1, 4, 5};

// 2 3 1 4 5

void solve(int N) {
    vector<int> order(N);
    for(int i = 0; i < N; i++) order[i] = i + 1;
    vector<int> dif(N, 0);
    int mx = 0;
    for(int i = 1; i < N; i++){
        swap(order[i-1], order[0]);
        // swap(rel[i-1], rel[0]);
        int original = publish(order);
        swap(order[0], order[N - 1]);
        int nw = publish(order);
        swap(order[0], order[N - 1]);
        // cout << "I " << i << " nw "<< nw << " original " << original << " dif "<< dif[i-1] << " dif halved " << dif[i-1] / 2 << endl; 
        if(original > nw){
            //N-1 is smaller than 0.
            original++;
        }else{
            //0 is smaller than N-1.
            nw++;
        }
        // swap(rel[0], rel[N-1]);
        // for(int x : rel) cout << x << " ";
        // cout << endl;
        // swap(rel[0], rel[N-1]);
        dif[i-1] = original - nw; 
        // cout << "I " << i << " nw "<< nw << " original " << original << " dif "<< dif[i-1] << " dif halved " << dif[i-1] / 2 << endl; 
        dif[i-1] /= 2;
        mx = max(mx, dif[i-1]);
    }
    vector<int> ans(N);
    ans[N-1] = N - mx;
    vector<int> real_ans(N);
    for(int i = 0; i < N; i++){
        ans[i] = ans[N-1] + dif[i];
        real_ans[ans[i]-1] = i + 1;
    }
    answer(real_ans);
}

/*
10
9 10 3 1 2 4 8 7 6 5
*/

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: 0 / 30