Submission #462407

#	Time	Username	Problem	Language	Result	Execution time	Memory
462407		Khizri	Carnival (CEOI14_carnival)	C++17	100 / 100	25 ms	332 KiB

carnival

#include <bits/stdc++.h>
using namespace std;
//------------------------------DEFINE------------------------------
//******************************************************************
#define IOS ios_base::sync_with_stdio(false); cin.tie(0),cout.tie(0)
#define ll long long
#define pb push_back		 
#define F first																 
#define S second 															 
#define INF 1e18
#define all(v) (v).begin(),(v).end()
#define rall(v) (v).rbegin(),(v).rend()
#define pii pair<int,int>
#define pll pair<ll,ll>
#define OK cout<<"Ok"<<endl;
#define MOD (ll)(1e9+7)
//******************************************************************
//----------------------------FUNCTION------------------------------
//******************************************************************
ll gcd(ll a,ll b){
	if(a>b) swap(a,b);
	if(a==0) return a+b;
	return gcd(b%a,a);
}
ll lcm(ll a,ll b){
	return a/gcd(a,b)*b;
}
bool is_prime(ll n){
	ll k=sqrt(n);
	if(n==2) return true;
	if(n<2||n%2==0||k*k==n) return false;
	for(int i=3;i<=k;i+=2){
		if(n%i==0){
			return false;
		}
	}
	return true;
}
//*****************************************************************
//--------------------------MAIN-CODE------------------------------
const int mxn=2e5+5;
int t=1,n,arr[mxn],color[mxn],ans,clr;
void ask(int &l,int &r,vector<int>vt,int node){
	int say,x,y;
	int m=(l+r)/2;
	cout<<m-l+1<<' ';
	for(int i=l;i<=m;i++){
		cout<<vt[i]<<' ';
	}
	cout<<endl;
	cin>>say;
	cout<<m-l+2<<' ';
	cout<<node<<' ';
	for(int i=l;i<=m;i++){
		cout<<vt[i]<<' ';
	}
	cout<<endl;
	cin>>x;
	if(x==say){
		ans=vt[m];
		r=m-1;
	}
	else{
		l=m+1;
	}
}
void solve(){
	cin>>n;
	for(int i=1;i<=n;i++){
		if(color[i]==0){
			color[i]=++clr;
		}
		vector<int>vt;
		for(int j=i+1;j<=n;j++){
			if(!color[j]){
				vt.pb(j);
			}
		}
		int l=0,r=vt.size()-1;
		ans=-1;
		while(l<=r){
			ask(l,r,vt,i);
		}
		if(ans!=-1){
			color[ans]=color[i];
		}
	}
	cout<<0<<' ';
	for(int i=1;i<=n;i++){
		cout<<color[i]<<' ';
	}
	cout<<endl;
}
int main(){
	IOS;
	//cin>>t;
	while(t--){
		solve();
	}
	return 0;
}

Compilation message (stderr)

carnival.cpp: In function 'void ask(int&, int&, std::vector<int>, int)':
carnival.cpp:44:12: warning: unused variable 'y' [-Wunused-variable]
   44 |  int say,x,y;
      |            ^

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