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  1. program ideone;
  2. function ctg(x: extended):extended;
  3. begin
  4.   ctg := cos(x)/sin(x);
  5. end;
  6. var i, count : integer;
  7.   x : extended;
  8. begin
  9.  count := 0;
  10.  x := 1;
  11.  for i:=0 to 2018 do begin
  12.     if ctg(x)<0 then Inc(count);
  13.     x := x * 10;
  14.  end;  
  15.  WriteLn(count)
  16. end.
Success #stdin #stdout 0s 9128KB
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1029
https://ideone.com/WblNLR
language:
Pascal (gpc 20070904)
created:
5 years ago
visibility:
public

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