Submission #1003783

#	Time	Username	Problem	Language	Result	Execution time	Memory
1003783		vjudge1	Pastiri (COI20_pastiri)	C++17	0 / 100	57 ms	7248 KiB

pastiri

#include <bits/stdc++.h>

using namespace std;

const int MAXN = 5*1e5+5;
int dp[MAXN];
vector<int> v;

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);

	int n,k; cin>>n>>k;
	for(int i = 1; i < n; i++){
		int a,b; cin>>a>>b;
	}

	for(int i = 0; i < k; i++){
		int x;cin>>x;
		v.push_back(x);
	}

	for(int i = k-1; i >= 0; i--){
		dp[i] = dp[i+1]+1;
		if(i != k && (v[i+1]-v[i])%2 == 0)dp[i] = min(dp[i],dp[i+2]+1);
	}

	cout<<dp[0]<<"\n";

	int i = 0;
	while(i < k){
		if((v[i+1]-v[i])%2 == 1 || dp[i] == dp[i+1]+1){
			cout<<v[i]<<" ";
			i++;
		}else{
			cout<<v[i] + (v[i+1]-v[i])/2<<" ";
			i += 2;
		}
	}cout<<"\n";
}

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