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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		int[] a1 = {1, 5, 3, 21};
  13. 		int[] b1 = {2, 10, 5, 1};
  14.  
  15. 		System.out.println("max weight is"+maxWeight(a1,b1));
  16.  
  17. 		int[] a2 = {10, 1, 1, 10};
  18. 		int[] b2 = {1, 1, 20, 1};
  19. 		System.out.println("max weight is "+maxWeight(a2,b2));
  20. 	}
  21.  
  22. 	public static int maxWeight(int[] a, int[] b) {
  23.  
  24. 		int n = a.length;
  25. 		if(n==0) return 0;
  26. 		if(n==1) return Math.max(a[0],b[0]);
  27.  
  28. 		int dp[] = new int[n];
  29.  
  30. 		dp[0] = Math.max(a[0], b[0]);
  31. 		dp[1] = Math.max(dp[0], Math.max(a[1], b[1]));
  32.  
  33. 		for(int i=2;i<n;i++){
  34. 			int skip = dp[i-1];	
  35. 			int takeA = a[i] + dp[i-2];
  36. 			int takeB = b[i] + dp[i-2];
  37.  
  38. 			dp[i] = Math.max(skip, Math.max(takeA, takeB));
  39. 		}
  40.  
  41. 		return dp[n - 1];
  42.  	}
  43. }
Success #stdin #stdout 0.1s 55492KB
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Standard input is empty
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max weight is31
max weight is 30
https://ideone.com/rNv6h4
language:
Java (HotSpot 12)
created:
5 hours ago
visibility:
public

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