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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone{
  6. 	public static void main (String[] args){
  7. 		for(int i = 1, j = 1, temp = 0; i <= 10; i++){
  8. 			System.out.print(i);
  9. 			if(i == j + temp){
  10. 				System.out.println("");
  11. 				temp = i;
  12. 				j++;
  13. 			}
  14. 		}
  15.  
  16. 		ArrayList nums= new ArrayList();
  17. 		for(int i = 1, j = 1, temp = 0; i <= 10; i++){
  18. 			if(i == j + temp){
  19. 				//System.out.println(i+" : "+j+" : "+temp);
  20. 				nums.add(j - 1, i);
  21. 				temp = i;
  22. 				j++;
  23. 			}
  24. 			else if(i == j + temp - 1){
  25. 				//nums.add((j - 1, temp + 1););
  26. 			}
  27. 		}
  28. 		System.out.print(nums.toString());
  29. 	}
  30. }
Success #stdin #stdout 0.07s 380160KB
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stdin
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Standard input is empty
stdout
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1
23
456
78910
[1, 3, 6, 10]
https://ideone.com/ksAJOa
language:
Java (12.0.1)
created:
8 years ago
visibility:
public

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