Submission #1075435

#	Time	Username	Problem	Language	Result	Execution time	Memory
1075435		hcng	Art Collections (BOI22_art)	C++17	100 / 100	1171 ms	1796 KiB

art

// Problem: #3774. 「BalticOI 2022 Day1」Art Collections
// Contest: LibreOJ
// URL: https://loj.ac/p/3774
// Memory Limit: 512 MB
// Time Limit: 3000 ms
// 
// Powered by CP Editor (https://cpeditor.org)

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

int a[4010], b[4010];

void solve(int n) {
    a[1] = 1;
    vector<int> yeet;
    for (int i = 1; i <= n; i++) {
        yeet.push_back(i);
    }
    int s = publish(yeet);
    for (int i = 2; i <= n; i++) {
        vector<int> R;
        R.push_back(i);
        for (int j = 1; j <= i - 1; j++) {
            R.push_back(a[j]);
        }
        for (int j = i + 1; j <= n; j++) {
            R.push_back(j);
        }
        int res = publish(R);
        int r = (i - 1 - (s - res)) / 2;
        s -= i - 1 - r;
        
        // r + x = i - 1;
        // x - r = res;
        // 2r = i - 1 - res;
        // s -= x
        
        for (int j = 1; j <= r; j++) {
            b[j] = a[j];
        }
        b[r + 1] = i;
        for (int j = r + 1; j <= i - 1; j++) {
            b[j + 1] = a[j];
        }
        for (int j = 1; j <= i; j++) {
            a[j] = b[j];
        }
    }
    vector<int> ans;
    for (int i = 1; i <= n; i++) {
        ans.push_back(a[i]);
    }
    answer(ans);
}

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