Submission #868143

#	Time	Username	Problem	Language	Result	Execution time	Memory
868143		Nuraly_Serikbay	Coin Collecting (JOI19_ho_t4)	C++17	0 / 100	1 ms	6492 KiB

joi2019_ho_t4

//çalışan kazanır//
 
#include "bits/stdc++.h"
 
using namespace std;
 
#define int long long
#define pb push_back
#define S second
#define F first
#define all(x) x.begin(),x.end()
#define YOSIK() ios_base::sync_with_stdio(0),cin.tie(0)
int gcd (int a, int b) {if (b == 0){return a;}else {return gcd (b, a % b);}}
 
const int N = 4e5 + 15;
const int INF = 1e18;
const int MOD = 1e9 + 7;
const int MODD = 1070234587ll;
const double eps = 0.0001;
const int p = 87;
 
int n, x[N], y[N];
int cnt[N][3], dp[2001][2001];
 
 
void solution () {
	cin >> n;
	for (int i = 1; i <= n * 2; ++ i) cin >> x[i] >> y[i];
	int res = 0;
	for (int i = 1; i <= n * 2; ++ i) {
		if (1 <= x[i] && x[i] <= n) {
			if (1 <= y[i] && y[i] <= 2) cnt[x[i]][y[i]] ++;
			if (y[i] < 1) cnt[x[i]][1] ++, res += (1 - y[i]), y[i] = 1;
			if (2 < y[i]) cnt[x[i]][2] ++, res += (y[i] - 2), y[i] = 2;
		}
		if (x[i] < 1) {
			res += 1 - x[i];
			if (1 <= y[i] && y[i] <= 2) cnt[1][y[i]] ++;
			if (y[i] < 1) cnt[1][1] ++, res += (1 - y[i]), y[i] = 1;
			if (2 < y[i]) cnt[1][2] ++, res += (y[i] - 2), y[i] = 2;
			x[i] = 1;
		}
		if (n < x[i]) {
			res += x[i] - n;
			if (1 <= y[i] && y[i] <= 2) cnt[n][y[i]] ++;
			if (y[i] < 1) cnt[n][1] ++, res += (1 - y[i]), y[i] = 1;
			if (2 < y[i]) cnt[n][2] ++, res += (y[i] - 2), y[i] = 2;
			x[i] = n;
		}
	}
	
	int pref = 0, suf = 0, dif = 0;
	
	for (int i = 1; i <= n; ++ i) {
		pref += cnt[i][1] + cnt[i][2] - 2;
	//	cout << cnt[i][1] << ' ' << cnt[i][2] << ' ' << pref << '\n';
		res += abs(pref);
	}
	for (int i = 1; i <= n; ++ i) dif += (cnt[i][1] - cnt[i][2]);
	res += abs(dif) / 2;
	cout << res;
	return;	
}
 
signed main() {
//	YOSIK();
//	srand (time(0));
//	freopen ("E.in", "r", stdin);
//	freopen ("E.out", "w", stdout);
	int TT = 1;// cin >> TT;
	for (int i = 1; i <= TT; ++ i) {
//		cout << "Case " << i << ": ";
		solution ();
		
  	}
 
	return 0;
}

Compilation message (stderr)

joi2019_ho_t4.cpp: In function 'void solution()':
joi2019_ho_t4.cpp:52:16: warning: unused variable 'suf' [-Wunused-variable]
   52 |  int pref = 0, suf = 0, dif = 0;
      |                ^~~

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