Submission #849214

#	Time	Username	Problem	Language	Result	Execution time	Memory
849214		vjudge1	Art Collections (BOI22_art)	C++17	20 / 100	84 ms	2756 KiB

art

#include "art.h"
#include "bits/stdc++.h"
using namespace std;

const int mxN = 4007;

int pos[mxN];
bool done[mxN][mxN];

void solve(int n) {
    vector<int> check;
    for (int i = 1; i <= n; ++i) {
        check.push_back(i);
        pos[i] = i - 1;
    }
    
    int cur = publish(check);
    while (cur) {
        for (int i = 0; i < n - 1 && cur; ++i) {
            if (!done[check[i]][check[i + 1]]) {
                swap(check[i], check[i + 1]);
                int nex = publish(check);

                if (nex < cur) {
                    cur = nex;
                }
                else {
                    swap(check[i], check[i + 1]);
                }
                done[check[i]][check[i + 1]] = done[check[i + 1]][check[i]] = true;
            }
        }
    }
    
    /*
    for (int i = 1; i <= n && cur; ++i) {
        for (int j = i + 1; j <= n && cur; ++j) {
            swap(check[pos[i]], check[pos[j]]);
            int nex = publish(check);

            if (nex < cur) {
                cout << i << ' ' << j << "\n";
                for (auto x : check) {
                    cout << x << ' ';
                }
                cout << "\n";
                swap(pos[i], pos[j]);
                cur = nex;
            }
            else {
                swap(check[pos[i]], check[pos[j]]);
            }
        }
    }
    */
    answer(check);
}

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: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30