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  1. program sushi;
  2. uses Math;
  3. const MAXN=100002;
  4. type piatto = record
  5.                    inizio:int64;
  6.                    durata:int64;
  7.                    peso:int64;
  8.                    fine:int64;
  9.                 end;
  10.      elenco = array[0.. MAXN-1] of int64;           
  11.      table = array[0..MAXN-1] of piatto;          
  12. var N,i,id:Longint;
  13.     ricordafine, quantomangio, ricordoquantomangiato:int64;
  14.     T : table; 
  15.     S,W,D,E, DP, ricordaindice, ricordaindice2:elenco;  (*array riferiti ai piatti Start, Weigth, Durata, End*)
  16.     uscita : boolean;
  17.  
  18. Procedure scambia (var a,b: int64);
  19. var x:int64;
  20. begin
  21.    x:=a;
  22.    a:=b;
  23.    b:=x;
  24. end;  
  25.  
  26. Procedure ordinamento (estremoi,estremos: int64; var v : elenco; var u:elenco; ordinato:boolean);
  27. var inf, sup, medio:int64;
  28.     pivot :int64;
  29. begin
  30.     inf:=estremoi;
  31.     sup:=estremos;
  32.     medio:= (estremoi+estremos) div 2;
  33.     pivot:=v[medio];
  34.     repeat
  35.       if (ordinato) then
  36.          begin
  37.             while (v[inf]<pivot) do  inf:=inf+1;
  38.             while (v[sup]>pivot) do  sup:=sup-1;
  39.          end;
  40.       if inf<=sup then
  41.        begin
  42.          scambia(v[inf],v[sup]);
  43.          scambia(u[inf],u[sup]);
  44.          inf:=inf+1;
  45.          sup:=sup-1;
  46.        end;
  47.     until inf>sup;
  48.     if (estremoi<sup) then ordinamento(estremoi,sup,v,u,ordinato);
  49.     if (inf<estremos) then ordinamento(inf,estremos,v,u,ordinato);
  50. end;
  51. Procedure ricerca (var w:elenco; target:int64); 
  52.   var m,start,eend: int64;
  53.  
  54.  begin  
  55.    start:=0; eend:=N-1 ; m:=-1;
  56.    while start<=eend do
  57.            begin
  58.                   m:=(start + eend) div 2;
  59.                   if w[m]<=target then begin id:=m;  start:=m+1 end
  60.                                    else  if w[m]>target then   eend:=m-1; 
  61.            end;
  62.    if eend=-1 then id:=-1;
  63.  end;
  64.  
  65. begin
  66.    (*assign(input,  'input.txt');  reset(input);
  67.    assign(output, 'output.txt'); rewrite(output);*)
  68.    readln(N);
  69.    for i:=0 to N-1 do begin ricordaindice[i]:=i; ricordaindice2[i]:=i; DP[i]:=0; end;
  70.    for i:=0 to N-1 do
  71.       begin
  72.         { dish on table }
  73.          readln(S[i],W[i],D[i]);
  74.          E[i]:=S[i]+D[i];
  75.          T[i].inizio:=S[i];
  76.          T[i].durata:=D[i];
  77.          T[i].peso:=W[i];
  78.          T[i].fine:=E[i];
  79.       end;
  80.     ordinamento(0,N-1,E, ricordaindice,true);
  81.     ordinamento(0,N-1,S, ricordaindice2,true);
  82.     ricordoquantomangiato:=0;
  83.     for i:=0 to N-1 do
  84.                 begin
  85.                    if ricordaindice[i]=0 then DP[0]:=T[ricordaindice[i]].peso
  86.                                                       else
  87.                                                          begin
  88.                                                           ricordafine:=T[ricordaindice[i]].inizio;
  89.                                                           ricerca(E, ricordafine);
  90.                                                           writeln(ricordafine,' ',id);
  91.                                                           if id<>-1 then
  92.                                                                   DP[i]:=max (DP[i-1],DP[id]+T[ricordaindice[i]].peso)
  93.                                                                   else DP[i]:=DP[i-1];
  94.  
  95.                                                          end;
  96.                  end;  
  97.                  for i:=0 to N-1 do write(DP[i],' '); writeln;
  98.    writeln(DP[N-1]);   
  99. end.
Success #stdin #stdout 0s 6612KB
comments (?)
stdin
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4
8 2 5
7 6 2
2 7 5
4 4 3
stdout
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2 -1
4 -1
7 1
2 0 6 0 
0
https://ideone.com/eTCcgl
language:
Pascal (fpc 3.0.4)
created:
4 hours ago
visibility:
public

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