Submission #653537

#	Time	Username	Problem	Language	Result	Execution time	Memory
653537		cadmiumsky	Art Collections (BOI22_art)	C++17	100 / 100	1840 ms	580 KiB

art

#include "art.h"
#include <bits/stdc++.h>
#define all(x) (x).begin(),(x).end()

using namespace std;


//
// --- Sample implementation for the task art ---
//
// To compile this program with the sample grader, place:
//     art.h art_sample.cpp sample_grader.cpp
// in a single folder, then open the terminal in this directory (right-click onto an empty spot in the directory,
// left click on "Open in terminal") and enter e.g.:
//     g++ -std=c++17 art_sample.cpp sample_grader.cpp
// in this folder. This will create a file a.out in the current directory which you can execute from the terminal
// as ./a.out
// See task statement or sample_grader.cpp for the input specification
//

void solve(int N) {
    std::vector<int> order(N);
    iota(all(order), 1);
    vector<int> values(N);
    int b = publish(order), sum = 0;
    for(int i = 1; i < N; i++) {
      int u = order.back();
      order.pop_back();
      reverse(all(order));
      order.push_back(u);
      reverse(all(order));
      int nv = publish(order);
      int delta = nv - b;
      //cerr << b << " -> " << nv << ' ' << delta << ':';
      b = nv;
      values[(delta + (N - 1)) / 2] = N - i + 1;
      sum += delta;
      //cerr << " " << (delta + (N - 1)) / 2 << '\n';
    }
    values[(0 - sum + (N - 1)) / 2] = 1;
    answer(values);
}

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