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  1. var a:array [1..100] of integer;
  2. n, i:integer;
  3. begin
  4. n:=100;
  5. for i:=0 to n do
  6. a[i]:=i;
  7. for i:=1 to n do
  8. begin
  9. a[i]:=a[i]-a[i-1];
  10. end;
  11. writeln(a[90]);
  12. end.
Success #stdin #stdout 0s 232KB
stdin
Standard input is empty
stdout
45