Submission #890772

#	Time	Username	Problem	Language	Result	Execution time	Memory
890772		vjudge1	Bitaro's travel (JOI23_travel)	C++17	5 / 100	3020 ms	14416 KiB

travel

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#pragma GCC target("avx,avx2,fma")
#pragma GCC optimize("Ofast,unroll-loops")
#define pii pair<int,int>
using namespace __gnu_pbds;
using namespace std;
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()
#define int long long
#define f first
#define s second
#define pii pair<int,int>
template<class T>bool umax(T &a,T b){if(a<b){a=b;return true;}return false;}
template<class T>bool umin(T &a,T b){if(b<a){a=b;return true;}return false;}
typedef tree<int, null_type, less_equal<int>, rb_tree_tag,
	tree_order_statistics_node_update> ordered_set;
const int mod= 1e9 +7;
const int N=1e5*4;

int binpow (int a, int n) {
	if (n == 0)
		return 1;
	if (n % 2 == 1)
		return binpow (a, n-1) * a;
	else {
		int b = binpow (a, n/2);
		return b * b;
	}
}


void solve(){
	
	int n,m,k;
	cin>>n;
	vector<int>v(n);
	
	for(auto &to:v)cin>>to;
	
	cin>>m>>k;
	map<int,int>vis;
	int cnt = 0;
	int ans = 0;
	while(cnt<n){
		int mn = mod,ind = -1;
		for(auto &to:v)
			if(vis[to]==0&&umin(mn,abs(to-k)))ind = to;
		ans += mn;
		k = ind;
		vis[ind] = 1;
		cnt ++;
		//~ cout<<ind<<endl;e
	}
	cout<<ans<<endl;
	
	
	





}

 signed main()
{
//	freopen("seq.in", "r", stdin);
//  freopen("seq.out", "w", stdout);
	ios_base::sync_with_stdio(0);cin.tie(NULL);cout.tie(NULL);
	int tt=1;//cin>>tt;
	while(tt--)solve();

}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 10
• Subtask 3: 0 / 30
• Subtask 4: 0 / 55