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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Main
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		int n;
  10. 		Scanner in = new Scanner(System.in);
  11. 		n = in.nextInt();
  12. 		int[] dp = new int[n + 1];
  13. 		for(int i = 1; i <= n; ++i){
  14. 			dp[i] = in.nextInt();
  15. 		}
  16. 		dp[1] = -1;
  17. 		for(int i = 3; i<=n; ++i){
  18. 			dp[i] = dp[i] + Math.max(dp[i-2], dp[i-3]);
  19. 		}
  20. 		System.out.println(dp[n]);
  21. 	}
  22. }
Success #stdin #stdout 0.07s 2184192KB
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https://ideone.com/Gp6Xbn
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
secret

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