Submission #2842344


Source Code Expand

#include <bits/stdc++.h>
using namespace std;

#define pb  push_back
#define mp  make_pair
#define int long long
#define itr ::iterator 

typedef pair<int,int>  pii;

const int MAX=1e6;
const int INF=1e18;

int N,E,T,arr[MAX],dp[MAX],tot[MAX],pre[MAX],nxt[MAX];

/*int cal(int ind)
{
	if(ind==N+1)
		return 0;
	if(dp[ind]!=-1)
		return dp[ind];
	dp[ind]=INF;
	for(int A=ind;A<=N;A++)
	{
		if(ok[ind][A] and ok[ind][A+1])
			continue;
		dp[ind]=min(dp[ind],pre[ind][A]+(arr[A+1]-arr[A])+cal(A+1));
	}
	return dp[ind];
}*/

void solve()
{
	dp[N]=T+E-arr[N];
	tot[N]=3*arr[N]+T-arr[N];
	for(int A=N-1;A>=1;A--)
	{
		dp[A]=pre[A]+arr[nxt[A]+1]-arr[nxt[A]]+dp[nxt[A]+1];
		if(nxt[A]<N)
			dp[A]=min(dp[A],-3*arr[A]+tot[nxt[A]+1]);
		tot[A]=min(tot[A+1],3*arr[A]+arr[A+1]-arr[A]+dp[A+1]);
	}
}

signed main()
{
	ios_base::sync_with_stdio(false);

	cin>>N>>E>>T;
	for(int A=1;A<=N;A++)
		cin>>arr[A];
	for(int A=1;A<=N;A++)
	{
		int low=A,high=N,mid,res=A;
		while(low<=high)
		{
			mid=(low+high)/2;
			if(T-2*(arr[mid]-arr[A])>0)
			{
				res=mid;
				low=mid+1;
			}
			else
				high=mid-1;
		}
		nxt[A]=res;
		pre[A]=T-2*(arr[res]-arr[A])+3*(arr[res]-arr[A]);
	}
	solve();
	cout<<arr[1]+dp[1];
	return 0;
}

Submission Info

Submission Time
Task D - Shik and Game
User sirzaid
Language C++14 (GCC 5.4.1)
Score 0
Code Size 1274 Byte
Status WA
Exec Time 19 ms
Memory 13312 KB

Judge Result

Set Name Sample Subtask1 All
Score / Max Score 0 / 0 0 / 600 0 / 600
Status
AC × 3
AC × 3
WA × 20
AC × 3
WA × 61
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt
Subtask1 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 1_11.txt, 1_12.txt, 1_13.txt, 1_14.txt, 1_15.txt, 1_16.txt, 1_17.txt, 1_18.txt, 1_19.txt, 2_00.txt, 2_01.txt, 2_02.txt, 2_03.txt, 2_04.txt, 2_05.txt, 2_06.txt, 2_07.txt, 2_08.txt, 2_09.txt, 2_10.txt, 2_11.txt, 2_12.txt, 2_13.txt, 2_14.txt, 2_15.txt, 2_16.txt, 2_17.txt, 2_18.txt, 2_19.txt, 2_20.txt, 2_21.txt, 2_22.txt, 2_23.txt, 2_24.txt, 2_25.txt, 2_26.txt, 2_27.txt, 2_28.txt, 2_29.txt, 2_30.txt, 2_31.txt, 2_32.txt, 2_33.txt, 2_34.txt, 2_35.txt, 2_36.txt, 2_37.txt, 2_38.txt, 2_39.txt, 2_40.txt
Case Name Status Exec Time Memory
0_00.txt AC 3 ms 8448 KB
0_01.txt AC 2 ms 8448 KB
0_02.txt AC 3 ms 8448 KB
1_00.txt WA 3 ms 8448 KB
1_01.txt WA 3 ms 8448 KB
1_02.txt WA 3 ms 8448 KB
1_03.txt WA 3 ms 8448 KB
1_04.txt WA 3 ms 8448 KB
1_05.txt WA 3 ms 8448 KB
1_06.txt WA 3 ms 8448 KB
1_07.txt WA 3 ms 8448 KB
1_08.txt WA 3 ms 8448 KB
1_09.txt WA 3 ms 8448 KB
1_10.txt WA 3 ms 8448 KB
1_11.txt WA 3 ms 8448 KB
1_12.txt WA 3 ms 8448 KB
1_13.txt WA 3 ms 8448 KB
1_14.txt WA 3 ms 8448 KB
1_15.txt WA 3 ms 8448 KB
1_16.txt WA 3 ms 8448 KB
1_17.txt WA 3 ms 8448 KB
1_18.txt WA 3 ms 8448 KB
1_19.txt WA 3 ms 8448 KB
2_00.txt WA 16 ms 13312 KB
2_01.txt WA 16 ms 13312 KB
2_02.txt WA 16 ms 13312 KB
2_03.txt WA 16 ms 13312 KB
2_04.txt WA 16 ms 13312 KB
2_05.txt WA 15 ms 13312 KB
2_06.txt WA 16 ms 13312 KB
2_07.txt WA 16 ms 13312 KB
2_08.txt WA 16 ms 13312 KB
2_09.txt WA 16 ms 13312 KB
2_10.txt WA 17 ms 13312 KB
2_11.txt WA 17 ms 13312 KB
2_12.txt WA 16 ms 13312 KB
2_13.txt WA 17 ms 13312 KB
2_14.txt WA 17 ms 13312 KB
2_15.txt WA 17 ms 13312 KB
2_16.txt WA 17 ms 13312 KB
2_17.txt WA 17 ms 13312 KB
2_18.txt WA 17 ms 13312 KB
2_19.txt WA 17 ms 13312 KB
2_20.txt WA 17 ms 13312 KB
2_21.txt WA 17 ms 13312 KB
2_22.txt WA 18 ms 13312 KB
2_23.txt WA 18 ms 13312 KB
2_24.txt WA 18 ms 13312 KB
2_25.txt WA 18 ms 13312 KB
2_26.txt WA 18 ms 13312 KB
2_27.txt WA 18 ms 13312 KB
2_28.txt WA 18 ms 13312 KB
2_29.txt WA 18 ms 13312 KB
2_30.txt WA 18 ms 13312 KB
2_31.txt WA 18 ms 13312 KB
2_32.txt WA 19 ms 13312 KB
2_33.txt WA 18 ms 13312 KB
2_34.txt WA 18 ms 13312 KB
2_35.txt WA 19 ms 13312 KB
2_36.txt WA 18 ms 13312 KB
2_37.txt WA 18 ms 13312 KB
2_38.txt WA 19 ms 13312 KB
2_39.txt WA 19 ms 13312 KB
2_40.txt WA 18 ms 13312 KB