Submission #1062440

#	Time	Username	Problem	Language	Result	Execution time	Memory
1062440		awu	Art Collections (BOI22_art)	C++17	100 / 100	1192 ms	1348 KiB

art

#include <bits/extc++.h>
using namespace std;
using namespace __gnu_pbds;

// #define int long long
#define ll long long
#define f first
#define s second
#define all(x) x.begin(), x.end()
#define debug(x) [&](decltype(x) _x) {cerr << #x << " = " << _x << endl; return _x;}(x)
using pii =  pair<int, int>;

// const ll inf = 1ll << 60;
const int inf = 1 << 30;

template <typename T, typename U>
ostream& operator<<(ostream& out, pair<T, U> p) {
  return out << "(" << p.f << ", " << p.s << ")";
}
template <typename T, typename = decltype(begin(declval<T>()))>
typename enable_if<!is_same<T, string>::value, ostream&>::type operator<<(ostream& out, T x) {
  string dlm = "";
  out << "{";
  for(auto i : x) {
    out << dlm << i;
    dlm = ", ";
  }
  return out << "}";
}

// signed main() {
//   ios_base::sync_with_stdio(0);
//   cin.tie(0);
// }

#include "art.h"

int query(vector<int> a) {
  for(int i = 0; i < a.size(); i++) {
    a[i]++;
  }
  return publish(a);
};

void solve(int n) {
  vector<int> id(n);
  iota(all(id), 0);
  int b = query(id);
  vector<int> ans(n);
  auto a = id;
  for(int i = n - 1; i > 0; i--) {
    vector<int> q{i};
    for(int j = 0; j < n; j++) {
      if(j != i) q.push_back(j);
    }
    int x = query(q) - b;
    int y = (i + x) / 2;
    ans[a[y]] = i;
    a.erase(a.begin() + y);
  }
  for(int i = 0; i < n; i++) {
    ans[i]++;
  }
  answer(ans);
}

Compilation message (stderr)

art.cpp: In function 'int query(std::vector<int>)':
art.cpp:39:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |   for(int i = 0; i < a.size(); i++) {
      |                  ~~^~~~~~~~~~
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