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  1. Scanner scanner = new Scanner(System.in);
  2. def input = scanner.nextLine().split(" ");
  3.  
  4. if(input.length == 0 || !input[0].isNumber()){
  5. 	println "-1";
  6. 	return;
  7. }
  8.  
  9. def count = input[0] as long;
  10. def ch = input[1];
  11.  
  12. int last = 1;
  13.  
  14. 0.upto(count - 1){
  15. 	0.step(last, 1){ print ch; };
  16.  
  17. 	println "";
  18. 	last++;
  19. };
Success #stdin #stdout 1.48s 333248KB
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https://ideone.com/K3pMnY
language:
Groovy (groovy 2.5.6)
created:
7 years ago
visibility:
public

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