Submission #203562

#	Time	Username	Problem	Language	Result	Execution time	Memory
203562		triplem5ds	Carnival (CEOI14_carnival)	C++14	0 / 100	19 ms	376 KiB

carnival

#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")

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

#define f(i,a,b)  for(int i = a; i < b; i++)
#define pb push_back
#define F first
#define S second

const int N = 1e6+5;
const int MOD = 1e9 + 7;
int ask(vector<int> v){
  cout<<v.size();
  for(auto x:v)cout<<' '<<x;
  cout<<endl;
  int ret;  cin >> ret; return ret;
}
vector<int> v;
vector<int> notVisited;
void solve(int s, int e){
  if(s>e)return;
  int md = (s+e)>>1;
  f(i,s,e+1)v.pb(notVisited[i]);
  int x = ask(v);
  if(x!=1)
  f(i,s,e+1)v.pop_back();
  if(s==e)return;
  solve(s,md);
  solve(md+1,e);
}
int32_t main(){
#ifdef ONLINE_JUDGE
  ios_base::sync_with_stdio(0); cin.tie(0);
#endif // ONLINE_JUDGE

  int n;
  cin >> n;
  vector<bool>vis(n+1);
  map<int,int> mp;
  int cur = 0;
  while(mp.size()!=n){
    v.clear();
    notVisited.clear();
    f(i,1,n+1)if(!vis[i])notVisited.pb(i);
    v.pb(notVisited[0]);
    vis[notVisited[0]] = 1;
    notVisited.erase(notVisited.begin());
    solve(0,(int)notVisited.size()-1);
    cur++;
    for(auto k:v){
      vis[k]=1;
      mp[k]=cur;
    }
  }

  cout<<0;
  f(i,1,n+1)  cout << ' ' << mp[i]; cout << endl;


  return 0;
}

Compilation message (stderr)

carnival.cpp: In function 'int32_t main()':
carnival.cpp:43:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   while(mp.size()!=n){
         ~~~~~~~~~^~~
carnival.cpp:7:19: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
 #define f(i,a,b)  for(int i = a; i < b; i++)
                   ^
carnival.cpp:59:3: note: in expansion of macro 'f'
   f(i,1,n+1)  cout << ' ' << mp[i]; cout << endl;
   ^
carnival.cpp:59:37: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   f(i,1,n+1)  cout << ' ' << mp[i]; cout << endl;
                                     ^~~~

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20