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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. 		// your code goes here
  13. 		int[] arr1 = new int[] {4, 3, 5, 2, 1, 3, 2, 4};
  14. 		int len = arr1.length;
  15. 		//System.out.println(len);
  16. 		int diff = maxDiff (arr1, len);
  17. 		System.out.println(diff);
  18. 	}
  19.  
  20. 	private static int maxDiff (int[] arr, int len)
  21. 	{
  22. 		if(arr == null || len < 2)
  23. 		{
  24. 			return 0;
  25. 		}
  26. 		//int maxDiff = Integer.MAX_VALUE;
  27. 		int min = arr[0];
  28. 		int maxDiff = arr[1] - min;
  29. 		for(int i=2; i<len; i++)
  30. 		{
  31. 			if(arr[i-1] < min)
  32. 			{
  33. 				min = arr[i-1];
  34. 			}
  35. 			int currDiff = arr[i] - min;
  36. 			if(currDiff > maxDiff)
  37. 			{
  38. 				maxDiff = currDiff;
  39. 			}
  40. 		}
  41. 		return maxDiff;
  42. 	}
  43. }
Success #stdin #stdout 0.07s 381248KB
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https://ideone.com/AolfKL
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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