Submission #1277710

#	Time	Username	Problem	Language	Result	Execution time	Memory
1277710		PieArmy	Coin Collecting (JOI19_ho_t4)	C++20	0 / 100	1 ms	580 KiB

joi2019_ho_t4

#include<bits/stdc++.h>
typedef long long ll;
#define pb push_back
#define fr first
#define sc second
#define endl '\n'
using namespace std;

int n;
int arr[100023][2];
ll ans=0;

int main(){
	ios_base::sync_with_stdio(23^23);cin.tie(NULL);
	cin>>n;
	for(int i=1;i<=2*n;i++){
		pair<int,int>p;cin>>p.fr>>p.sc;
		if(p.fr<1){
			ans+=1-p.fr;
			p.fr=1;
		}
		if(p.fr>n){
			ans+=p.fr-n;
			p.fr=n;
		}
		if(p.sc<1){
			ans+=1-p.sc;
			p.sc=1;
		}
		if(p.sc>2){
			ans+=p.sc-2;
			p.sc=2;
		}
		arr[p.fr][p.sc-1]++;
	}
	vector<int>need[2];
	for(int i=1;i<=n;i++){
		if(arr[i][0]+arr[i][1]<2){
			if(!arr[i][0]){
				need[0].pb(i);
			}
			if(!arr[i][1]){
				need[1].pb(i);
			}
		}
		else{
			if(!arr[i][0]){
				ans++;
				arr[i][1]--;
				arr[i][0]++;
			}
			else if(!arr[i][1]){
				ans++;
				arr[i][0]--;
				arr[i][1]++;
			}
			while(arr[i][0]>1&&need[0].size()){
				ans+=i-need[0].back();
				need[0].pop_back();
				arr[i][0]--;
			}
			while(arr[i][1]>1&&need[1].size()){
				ans+=i-need[1].back();
				need[1].pop_back();
				arr[i][1]--;
			}
			while(arr[i][0]>1&&need[1].size()){
				ans+=i-need[1].back()+1;
				need[1].pop_back();
				arr[i][0]--;
			}
			while(arr[i][1]>1&&need[0].size()){
				ans+=i-need[0].back()+1;
				need[0].pop_back();
				arr[i][1]--;
			}
			ans+=arr[i][0]-1;
			arr[i+1][0]+=arr[i][0]-1;
			ans+=arr[i][1]-1;
			arr[i+1][1]+=arr[i][1]-1;
		}
	}
	cout<<ans<<endl;
}

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