Submission #1116196

#	Time	Username	Problem	Language	Result	Execution time	Memory
1116196		Dan4Life	Coin Collecting (JOI19_ho_t4)	C++17	100 / 100	32 ms	5960 KiB

joi2019_ho_t4

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define sz(a) (int)a.size()
#define all(a) begin(a),end(a)
#define int long long
const int N = (int)2e5+10;
int n, a[N][2], b[2];

int32_t main(){
	ios_base::sync_with_stdio(false); cin.tie(0);
	cin >> n; int ans = 0, xd = 0;
	for(int i = 0; i < 2*n; i++){
		int x, y; cin >> x >> y; int X=x,Y=y;
		x=clamp(x,1ll,n), y=clamp(y,1ll,2ll);
		ans+=abs(X-x)+abs(Y-y); a[x][y-1]++;
	}
	for(int i = 1; i <= n; i++){
		b[0]+=a[i][0]-1,b[1]+=a[i][1]-1; 
		for(int j : {0,1}){
			xd=min(abs(b[0]),abs(b[1]));
			if(b[j]>0 and b[j^1]<0) ans+=xd,b[j]-=xd,b[j^1]+=xd;
		}
		ans+=abs(b[0])+abs(b[1]);
	}
	cout << ans << "\n";
}

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