Submission #1143002

#	Time	Username	Problem	Language	Result	Execution time	Memory
1143002		ezzzay	Pastiri (COI20_pastiri)	C++20	0 / 100	172 ms	8352 KiB

pastiri

#include<bits/stdc++.h>
using namespace std;
#define int long long
#define ff first
#define ss second
#define pb push_back
const int N=6e5+5;
int dp[N][2];
signed main(){
	int n,k;
	cin>>n>>k;
	for(int i=1;i<n;i++){
		int a,b;
		cin>>a>>b;
	}
	vector<int>v(k+1);
	for(int i=1;i<=k;i++)cin>>v[i];
	
	sort(v.begin(),v.end());
	for(int i=1;i<=n;i++){
		dp[i][0]=1e9;
		dp[i][1]=1e9;
	}
	dp[1][1]=1;
	for(int i=2;i<=k;i++){
		dp[i][1]=min(dp[i-1][0],dp[i-1][1])+1;
		if((v[i]-v[i+1])%2==0){
			dp[i][0]=dp[i-1][1];
		}
	}
	cout<<min(dp[k][1],dp[k][0])<<endl;;
	int t=0;
	for(int i=2;i<=k;i++){
		if((v[i]-v[i+1])%2==0){
			cout<<v[i]+v[i-1]/2<< " ";
			t++;
			i++;
		}
		else{
			cout<<v[i-1]<<" ";
			t++;
		}
	}
	if(t!=min(dp[k][1],dp[k][0]))cout<<v[k];
}

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