Submission #1149669

#	Time	Username	Problem	Language	Result	Execution time	Memory
1149669		gazizmadi11	Coin Collecting (JOI19_ho_t4)	C++20	100 / 100	24 ms	2796 KiB

joi2019_ho_t4

//gm  --- akezhon
#include <bits/stdc++.h>
// #pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define pb push_back
#define pf push_front
#define F first
#define S second
#define all(v) v.begin(),v.end()
#define pii pair<int,int>
#define tm (tl+tr)/2
#define TL v+v, tl, tm
#define TR v+v+1, tm+1, tr
#define DA l <= tl && tr <= r
#define NE r < tl || tr < l
#define double long double
#define int long long
using namespace std;

const int N=3e5+7;
const int mod=1e9+7;
const int inf=2e18;

int a[N][3];

void AlemAmenov(){
	int ans=0;
	int n;
	cin >> n;
	for(int x, y, i=1; i <= n*2; i++){
		cin >> x >> y;
		if(y<=1){
			ans+=1-y;
			if(x < 1){
				ans += 1-x;
				a[1][1]++;
			}
			else if(n < x){
				ans += x-n;
				a[n][1]++;
			}
			else{
				a[x][1]++;
			}
		}
		else{
			ans+=y-2;
			if(x < 1){
				ans += 1-x;
				a[1][2]++;
			}
			else if(n < x){
				ans += x-n;
				a[n][2]++;
			}
			else{
				a[x][2]++;
			}
		}
	}
	int dolg1=0, dolg2=0;
	for(int i=1; i <= n; i++){
		dolg1 += a[i][1]-1;
		dolg2 += a[i][2]-1;
		if(dolg1 < 0 && 0 < dolg2){
			int mn = min(abs(dolg1), abs(dolg2));
			ans += mn;
			dolg1 += mn;
			dolg2 -= mn;
		}
		if(dolg2 < 0 && 0 < dolg1){
			int mn = min(abs(dolg1), abs(dolg2));
			ans += mn;
			dolg2 += mn;
			dolg1 -= mn;	
		}
		ans += abs(dolg1);
		ans += abs(dolg2);
	}
	cout << ans;
}
signed main(){

	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int RealName=1;
	// cin >> RealNam;
	// srand(time(0));

	while(RealName--)
		AlemAmenov();
	
return 0;
}

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