Submission #727321

#	Time	Username	Problem	Language	Result	Execution time	Memory
727321		hugo_pm	Art Collections (BOI22_art)	C++17	100 / 100	1893 ms	804 KiB

art

#include "art.h"
//
// --- 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
//
#include <bits/stdc++.h>
using namespace std;
void solve(int N) {
    vector<int> order(N);
    iota(order.begin(), order.end(), 1);
    vector<int> info;
    int cur = publish(order);
    vector<pair<int, int>> infos;
    set<int> allRank;
    for (int r = 0; r < N; ++r) {
        allRank.insert(2*r - (N-1));
    }
    for (int i = 1; i < N; ++i) {
        for (int x = 0; x < N; ++x) {
            order[x] = (i+x) % N + 1;
        }
        int nxt = publish(order);
        infos.push_back({cur - nxt, i});
        allRank.erase(cur-nxt);
        cur = nxt;
    }
    assert(allRank.size() == 1);
    infos.push_back({*allRank.begin(), N});
    sort(infos.begin(), infos.end());
    for (int i = 0; i < N; ++i) {
        order[i] = infos[i].second;
    }
    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