Submission #237025

#	Time	Username	Problem	Language	Result	Execution time	Memory
237025		Atalasion	Coin Collecting (JOI19_ho_t4)	C++14	0 / 100	5 ms	384 KiB

joi2019_ho_t4

//khodaya khodet komak kon
#include <bits/stdc++.h>

#define F first
#define S second
#define pb push_back
#define all(x) x.begin(), x.end()
#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math")


using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;

const int N = 200000 + 10;
const ll MOD = 1000000000 + 7;
const ll INF = 1000000010;
const ll LOG = 25;

int n, X[N], Y[N], cnt[N][2];

int32_t main(){
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> n;
	ll ans = 0;
	for (int i = 1; i <= 2 * n; i++){
		cin >> X[i] >> Y[i];
		int x, y;
		if (abs(Y[i] - 1) < abs(Y[i] - 2)){
			y = 1;
			ans += abs(Y[i] - 1);
		}else y = 2, ans += abs(Y[i] - 2);
		if (1 <= X[i] && X[i] <= n) x = X[i];
		else if(X[i] < 1) x = 1;
		else x = n;
		ans += abs(X[i] - x);
//		cout << X[i] << ' ' << Y[i] << ' ' << x << ' ' << y << '\n';
		cnt[x][y - 1] ++;
	}
//	cout << ans << '\n';
	ll sm1 = 0, sm2 = 0;
//	for (int i = 1; i <= n; i++) cout << cnt[i][0] << ' ' << cnt[i][1] << '\n';
	for (int i = 1; i <= n; i++) sm1 += cnt[i][0], sm2 += cnt[i][1];
	ans += abs(sm1 - sm2) / 2;
	ll sm = 0;
	for (int i = 1; i <= n; i++){
		sm += cnt[i][0] + cnt[i][1];
		sm2 = 2 * n - sm;
		ans += max(0ll, 2 * i - sm);
		ans += max(0ll, 2 * (n - i) - sm2);
	}
	cout << ans;









	return 0;
}

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