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  1. program casino;
  2. Uses sysutils;
  3. {$H+}
  4. const lung=1000000;
  5. var  N,M,C,w,v,coppie,index:Int64;
  6.      temp: AnsiString;
  7.      S,S_ruotate:array[0..lung] of AnsiString;
  8.      funz_errore : array[0..2000000] of Int64;
  9. function LexicalMinRotation(var x: AnsiString):Int64;
  10. var 
  11. len,K,i,j:Int64;
  12.  
  13. begin
  14.    temp:=x+x;
  15.    len:=length(x);
  16.    for i:=1 to len do funz_errore[i]:=-1; (*inizializzo la funzione errore a -1*)
  17.    K:=0;
  18.    for j:=1 to len do
  19.            begin
  20.              i:=1;
  21.              while (i <> -1 ) and (x[j mod len] <> x[(k + i + 1 ) mod len]) do 
  22.                    begin
  23.                      i:=funz_errore[j - k - 1];
  24.                      if x[j mod len] < x[(k + i + 1) mod len] then k:= j - i - 1;
  25.                      i:= funz_errore[i]; 
  26.                   end;
  27.             if (i = -1) and (s[j mod len ] <> s[(k + i+1 ) mod len ]) then
  28.                                                                     begin
  29.                                                                        if s[j mod len] < s[(k + i+1 ) mod len] then k:= j;
  30.                                                                        funz_errore[j - k]:= -1;
  31.                                                                     end
  32.                                                                  else
  33.                                                                      funz_errore[j - k]:= i + 1;
  34.  
  35.          end;   
  36.  LexicalMinRotation:=k;
  37.  
  38. end;
  39.  
  40. begin
  41.    (*assign(input, 'input.txt'); reset(input);
  42.    assign(output, 'output.txt'); rewrite(output);*)
  43.    readln (N,M);
  44.    for w:=0 to N-1 do readln(S[w]); 
  45.    coppie:=0; 
  46.    for w:=0 to N-1 do
  47.           begin
  48.             index:=LexicalMinRotation(S[w]);
  49.             writeln(index);
  50.             S_ruotate[w]:=copy(temp,index,M);
  51.             writeln(S_ruotate[w]);
  52.           end; 
  53.     for w:=0 to N-2 do  
  54.              for v:=w+1 to N-1 do
  55.                         begin
  56.                           C:= CompareStr(S_ruotate[w], S_ruotate[v]);
  57.                           if C=0 then coppie:=coppie+1;
  58.                         end; 
  59.     writeln (coppie);
  60. end.
Success #stdin #stdout 0.02s 5284KB
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https://ideone.com/9yoiSk
language:
Pascal (fpc 3.0.4)
created:
9 days ago
visibility:
public

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