Submission #713010

#	Time	Username	Problem	Language	Result	Execution time	Memory
713010		Mamedov	Art Collections (BOI22_art)	C++17	100 / 100	1475 ms	872 KiB

art

#include "art.h"
#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
#define pii pair<int, int>
#define piii pair<pii, int>
#define vi vector<int>
#define vll vector<ll>
#define vvi vector<vi>
#define vpii vector<pii>
#define vvpii vector<vpii>
#define f first
#define s second
#define oo 1000000001
#define eb emplace_back
#define pb push_back
#define mpr make_pair
#define size(v) (int)v.size()
#define ln '\n'
#define ull unsigned long long
#define ll long long
#define all(v) v.begin(), v.end()

using namespace std;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

void solve(int N) {
  vi order;
  for (int i = 1; i <= N; ++i) {
    order.eb(i);
  }
  int inv = publish(order);

  vi ans(N, N);
  for (int i = 1; i < N; ++i) {
    order.clear();
    for (int j = 1; j <= N; ++j) {
      if (j != i) {
        order.eb(j);
      }
    }
    order.eb(i);
    int ninv = publish(order);
    int posi = (inv - ninv + N - i) / 2;

    for (int j = 0; j < N; ++j) {
      if (ans[j] == N) {
        if (!posi) {
          ans[j] = i;
          break;
        }
        --posi;
      }
    }
  }
  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