Submission #901413

#	Time	Username	Problem	Language	Result	Execution time	Memory
901413		sunwukong123	Coin Collecting (JOI19_ho_t4)	C++14	100 / 100	43 ms	5988 KiB

joi2019_ho_t4

#include <bits/stdc++.h>
using namespace std;
#define int long long 
#ifdef LOCAL
void debug_out() {cerr<<endl;}
template <typename Head, typename... Tail>
void debug_out(Head _H, Tail... _T) {cerr<<" "<<to_string(_H);debug_out(_T...);}
#define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:",debug_out(__VA_ARGS__)
#else
#define debug(...)
#endif
const int MAXN = 100005;
const int inf=1000000500ll;
const long long oo =1000000000000000500ll;
const int MOD = (int)1e9 + 7;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
typedef pair<int,int> pi; 
int A[MAXN][3];
int ans;
 
int32_t main() 
{
	ios_base::sync_with_stdio(0); cin.tie(0);
	int n; cin >> n;
	for(int i=1;i<=2*n;i++){
		int x,y;cin>>x>>y;
		int nx,ny;
		if(y>=2)ny=2;
		else ny=1;
 
		if(x<=1)nx=1;
		else if(x<=n)nx=x;
		else nx=n;
		ans+=abs(x-nx) + abs(y-ny);
		A[nx][ny]++;
	}
	int L=0,R=0;
	for(int i=1;i<=n;i++){
		L+=A[i][1]-1;
		R+=A[i][2]-1;
		while(L<0&&R>0){
			++L;--R;++ans;
		}
		while(L>0&&R<0){
			--L;++R;++ans;
		}
		ans+=abs(L)+abs(R);
	}
	cout<<ans;
}	

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