Submission #1320120

#	Time	Username	Problem	Language	Result	Execution time	Memory
1320120		vtnoo	Coin Collecting (JOI19_ho_t4)	C++20	8 / 100	74 ms	440 KiB

joi2019_ho_t4

#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::sync_with_stdio(false); 
	cin.tie(nullptr);
	int n;cin>>n;
	vector<ll>x(2*n),y(2*n);
	L(i,0,n*2-1){
		int a,b;cin>>a>>b;
		x[i]=a,y[i]=b;
	}
	ll ans=1e18;
	L(mask,0,(1<<(2*n))-1){
		if(__builtin_popcount(mask)!=n)continue;
		vector<ii>v1,v2;
		L(i,0,2*n-1){
			if((1<<i)&mask){
				v1.pb(x[i],y[i]);
			}else v2.pb(x[i],y[i]);
		}
		sort(all(v1));
		sort(all(v2));
		ll cur=0;
		L(i,0,sz(v1)-1){
			int x=v1[i].fst,y=v1[i].snd;
			cur+=abs(x-(i+1))+abs(y-1);
		}
		L(i,0,sz(v2)-1){
			int x=v2[i].fst,y=v2[i].snd;
			cur+=abs(x-(i+1))+abs(y-2);
		}
		ans=min(ans,cur);
	}
	cout<<ans<<endl;
}	

• Subtask 1: 8 / 8
• Subtask 2: 0 / 29
• Subtask 3: 0 / 63