Submission #598527

#	Time	Username	Problem	Language	Result	Execution time	Memory
598527		SuffixAutomata	Art Collections (BOI22_art)	C++17	100 / 100	1530 ms	712 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> cur;
  for (int i = 1; i <= N; i++)
    cur.push_back(i);
  int s = publish(cur), ps = 0;
  vector<int> ii(N + 1);
  ii[N] = s;
  for (int i = 1; i <= N - 1; i++) {
    vector<int> x = cur;
    reverse(x.begin() + i, x.end());
    int q = publish(x);
    int d = s + q - (N - i) * (N - i - 1) / 2;
    assert(d % 2 == 0);
    d = d / 2 - ps;
    ii[i] = d, ii[N] -= d, ps += d;
  }
  vector<int> ans(N);
  for (int i = 1; i <= N; i++) {
    int cnt = 0;
    for (int j = 0; j < N; j++) {
      if (ans[j])
        continue;
      if (cnt == ii[i]) {
        ans[j] = i;
        break;
      }
      cnt++;
    }
  }
  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