Submission #866106

#	Time	Username	Problem	Language	Result	Execution time	Memory
866106		Vanilla	Carnival (CEOI14_carnival)	C++17	100 / 100	9 ms	724 KiB

carnival

#include <bits/stdc++.h>
#include <fstream>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
template<class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
struct custom_hash {static uint64_t splitmix64(uint64_t x) {x += 0x9e3779b97f4a7c15;x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;x = (x ^ (x >> 27)) * 0x94d049bb133111eb;return x ^ (x >> 31);}size_t operator()(uint64_t x) const {static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();return splitmix64(x + FIXED_RANDOM);}};
// string __fname = ""; ifstream in (__fname + ".in"); ofstream out (__fname + ".out"); 
// #define cin in 
// #define cout out
#define int64 long long
#define uint64 unsigned long long
#define x first
#define y second
#define pb push_back
#define pii pair <int, int> 
#define pii64 pair <int64, int64>
#define db(x) cout << "> " << #x << ": " << (x) << "\n"
#define qr queries()
#define yn(x) if (x) {ctn("Yes");}else {ctn("No");}
void solve(int);
void queries(){int n;cin >> n;for (int i = 1; i <= n; i++) solve(i);}
template<class T>T ceildiv(T a, T b) {return (a + b - 1) / b;}
template<class T>T gcd (T a, T b){return (b ? gcd(b, a % b): a);}
template<class T>T lcm (T a, T b){return a * b / gcd(a, b);}
// // // // // // // // // // // // // // // // // // // // // // 
/*                  TEMPLATE - VANILLA                         */
// // // // // // // // // // // // // // // // // // // // // //
const int ddx[] = {-1, -1, 0, 1, 1, 1, 0, -1};
const int ddy[] = {0, 1, 1, 1, 0, -1, -1, -1};
const int dx[] = {-1, 0, 1, 0};
const int dy[] = {0, 1, 0, -1};
const double pi = 3.14159265359;
const double eps = 1e-6;
const int64 hash_inv = 940594066;
const int64 hash_p = 101;
const int64 mod = 1e9 + 7;
const int maxn = 2e5 + 2;
int rs [maxn];

void solve(int id){

  return;
}

int query (int l, int r) {
  cout << r - l + 1 << " ";
  for (; l <= r; l++) cout << l << " ";
  cout << endl;
  int x;
  cin >> x;
  return x;
}

int diff (int l, int r) {
  set <int> s;
  for (; l <= r; l++) s.insert(rs[l]);
  return s.size();
}


int main(){
  ios_base::sync_with_stdio(0); cin.tie(0); cout << fixed; cout << setprecision(10);
  int n;
  cin >> n;
  rs[1] = 1;
  int idx = 2;
  for (int i = 2; i <= n; i++){
    int l = 1, r = i - 1, f = -1;
    while (l <= r) {
      int mid = (l + r) / 2;
      int q = query(mid, i);
      int d = diff(mid,  i - 1);
      if (q == d) {
        f = mid;
        l = mid + 1;
      }
      else {
        r = mid - 1;
      }
    }
    if (f == -1) rs[i] = idx++;
    else {
      rs[i] = rs[f];
    }
  }
  cout << 0 << " ";
  for (int i = 1; i <= n; i++){
    cout << rs[i] << " ";
  }
  return 0;
}

• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20