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  1. program ask(input, output);
  2.  
  3. const max=100000;
  4.  
  5. var n,c, i, count: integer;
  6.     a: array[1..max] of integer;
  7.     flag, fl: boolean;
  8.  
  9. begin
  10. readln(n);
  11.  
  12. for i:=1 to n do read(a[i]);
  13.  
  14. count:=0;
  15. i:=2;
  16. flag:=false;
  17. while not flag do
  18. begin
  19.    while i<=n do
  20.    begin
  21.       if (a[i-1]>0) and (a[i]<0) then 
  22.       begin
  23.          c:=a[i];
  24.          a[i]:=a[i-1];
  25.          a[i-1]:=c;
  26.          count:=count+1;
  27.       end;
  28.       i:=i+1;
  29.    end;
  30.  
  31.    i:=2;
  32.    fl:=true;
  33.    while fl and (i<=n) do
  34.    begin
  35.       if (a[i-1]>0) and (a[i]<0) then
  36.       begin
  37.          c:=a[i];
  38.          a[i]:=a[i-1];
  39.          a[i-1]:=c;
  40.          count:=count+1;
  41.          fl:=false;
  42.       end;
  43.       i:=i+1;
  44.    end;
  45.  
  46.    if fl then flag:=true;
  47. end;
  48.  
  49. writeln(count);
  50. writeln(a[1]);
  51. writeln(a[n]);
  52. end.
Success #stdin #stdout 0.01s 4504KB
comments (?)
stdin 
7
10 -9 -4 5 -2 3 8
stdout 
4
-9
8
https://ideone.com/hMEy3
language:
Pascal (gpc 20070904)
created:
14 years ago
visibility:
public

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