Submission #1309677

#	Time	Username	Problem	Language	Result	Execution time	Memory
1309677		vtnoo	Spring cleaning (CEOI20_cleaning)	C++20	0 / 100	10 ms	1060 KiB

cleaning

#include <bits/stdc++.h>
#define L(i, j, k) for(int i = (j); i <= (k); i++)
#define R(i, j, k) for(int i = (j); i >= (k); i--)
#define ll long long
#define sz(a) ((int) a.size())
#define all(a) a.begin(), a.end()
#define vi vector<int>
#define pb emplace_back
#define me(a, x) memset(a, x, sizeof(a))
#define fst first
#define snd second
#define ii pair<int,int>
using namespace std;
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
	int n,q;cin>>n>>q;
	L(i,0,n-1){
		int u,v;cin>>u>>v;
	}
	int leaf_cnt=2;
	int d;cin>>d;
	vi p(d);
	L(i,0,d-1){
		cin>>p[i];
		leaf_cnt++;
	}
	if(leaf_cnt%2){cout<<-1<<endl;return 0;}
	sort(all(p));
	int ans=n-1;
	for(int i=1;i<d;i+=2){
		ans+=(p[i]-p[i-1])+2;
	}
	cout<<ans<<endl;
}

• Subtask 1: 0 / 0
• Subtask 2: 0 / 9
• Subtask 3: 0 / 9
• Subtask 4: 0 / 16
• Subtask 5: 0 / 19
• Subtask 6: 0 / 17
• Subtask 7: 0 / 30