Submission #496875

#	Time	Username	Problem	Language	Result	Execution time	Memory
496875		Nuraly_Serikbay	Coin Collecting (JOI19_ho_t4)	C++14	0 / 100	1 ms	332 KiB

joi2019_ho_t4

#include <bits/stdc++.h>
  
#define endl "\n"
#define mp make_pair
#define pb push_back
#define F first
#define S second
#define sz size()
#define rep(i,k,n) for(int i = k ; i <= n ; ++i)
#define per(i,k,n) for(int i = k ; i >= n ; --i)
#define Zymraq() ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#define all(x) x.begin(),x.end()
#define fr(x) freopen(x".in","r",stdin),freopen(x".out","w",stdout)
#define toqta return 0
#define PERMUTE next_permutation
#define no cout<<"No"<<endl;
#define yes cout<<"Yes"<<endl;
#define a() a + 1, a + n + 1  
 
  
using namespace std;
   
typedef long long ll;
typedef unsigned long long ull;
typedef string S;
typedef double ld;
typedef long double lld;
   
const int N = 1e6 + 17;
const int modd = 1e9 + 7;
const ll INF = 1e18 - 19;
const int P = 37;
const ll NN = 1e7 + 17;
const ld eps = 1e-19;
const double pi = 3.141592653589793238462643383279 ;
   
 
bool sortbysec(const pair<int,int> &a, const pair<int,int> &b){
    return (a.second < b.second);
}
 
void pre (ll a) {
    cout << fixed << setprecision(a);
    return;
}

ll n, totalans; 
bool pos[1000][1000];
ll x[N], y[N];
ll ok[1000][1000];


void solve() {
	cin >> n;
	for (int i = 1;  i <= 2 * n; ++ i) {
		cin >> x[i] >> y[i];
		if (x[i] >= 1 && y[i] >= 1 && x[i] <= n && y[i] <= 2) {
			pos[x[i]][y[i]] = 1;
		}	
	}

	for (int i = 1; i <= 2 * n; ++ i) {
		ll mn = INF, now_posx, now_posy;
		if (x[i] > 0 && y[i] > 0 && x[i] <= n && y[i] <= 2 && pos[x[i]][y[i]] == 1) {
			ok[x[i]][y[i]] ++;
			continue;
		}
		for (int j = 1; j <= n; ++ j) {
			if (!pos[j][1] && mn > abs (x[i] - j) + abs(y[i] - 1)) {
				now_posx = j, now_posy = 1;
				mn = abs (x[i] - j) + abs(y[i] - 1);
			}
			if (!pos[j][2] && mn > abs (x[i] - j) + abs(y[i] - 2)) {
				now_posx = j, now_posy = 2;
				mn = abs (x[i] - j) + abs(y[i] - 2);
			}
		}
	//	cout << now_posx << ' ' << now_posy << ' ' << mn << "   " << x[i] << ' ' << y[i] << ' ' << i << '\n';
		if (mn != INF){
			pos[now_posx][now_posy] = 1;
			totalans += mn;
		}
		
	}
	for (int i = 1; i <= 2 * n; ++ i) {
		ll mn = INF, now_posx, now_posy;
		if (x[i] > 0 && y[i] > 0 && x[i] <= n && y[i] <= 2 && ok[x[i]][y[i]] > 1) {
			ok[x[i]][y[i]] --;
			for (int j = 1; j <= n; ++ j) {
				if (!pos[j][1] && mn > abs (x[i] - j) + abs(y[i] - 1)) {
					now_posx = j, now_posy = 1;
					mn = abs (x[i] - j) + abs(y[i] - 1);
				}
				if (!pos[j][2] && mn > abs (x[i] - j) + abs(y[i] - 2)) {
					now_posx = j, now_posy = 2;
					mn = abs (x[i] - j) + abs(y[i] - 2);
				}
			}
		//	cout << now_posx << ' ' << now_posy << ' ' << mn << "   " << x[i] << ' ' << y[i] << ' ' << i << '\n';
			if (mn != INF){
				pos[now_posx][now_posy] = 1;
				totalans += mn;
			}
		}
	}
	cout << totalans;
	return;
}
 
int main() {
//	Zymraq ();	
	solve();
	return 0;
}

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