Submission #1045076

#	Time	Username	Problem	Language	Result	Execution time	Memory
1045076		vjudge1	Pastiri (COI20_pastiri)	C++17	0 / 100	152 ms	34640 KiB

pastiri

#include <bits/stdc++.h>
using namespace std;
 
#define int long long
#define OYY LLONG_MAX
#define mod 998244353
#define faster ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define FOR for(int i=1;i<=n;i++)
#define mid (start+end)/2
#define lim 500005
#define fi first
#define se second

vector<int> v[lim];

int32_t main(){
	faster
	int n,k;cin>>n>>k;
	FOR{
		if(i==1)continue;
		int a,b;cin>>a>>b;
		v[a].push_back(b);
		v[b].push_back(a);
	}
	
	int dizi[k+1];
	
	for(int i=1;i<=k;i++){
		cin>>dizi[i];
	}
	
	sort(dizi+1,dizi+1+k);
	
	set<int> cev;
	
	for(int i=1;i<=k;i++){
		if(i!=k && (dizi[i+1]-dizi[i])%2==0){
			cev.insert((dizi[i+1]+dizi[i])/2);
		}
		else cev.insert(dizi[i]);
	}
	
	cout<<cev.size()<<'\n';
	
	for(auto x:cev){
		cout<<x<<" ";
	}
	
	cout<<'\n';
	
	return 0;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 18
• Subtask 3: 0 / 23
• Subtask 4: 0 / 51