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  1. program ideone;
  2. 	var
  3. Sn,temp: QWord;
  4. n:Integer;
  5. i:Integer;
  6. x:double;
  7. const Two: QWord = 2;
  8. begin
  9. readln(n);
  10. for i:=1 to n do begin
  11. temp:=Two*i*(i+1) + 1;
  12. x:= sqrt(temp);
  13. if(x*x = temp) then writeln(i);
  14. end;
  15. end.
Success #stdin #stdout 0s 232KB
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https://ideone.com/DMHhwC
language:
Pascal (fpc 3.0.4)
created:
9 years ago
visibility:
public

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