Machine Translation (noip2010)

Source: Internet
Author: User

Analysis: this is a classic queue question, which can be implemented directly using the queue. If the data range is larger, hash can be used to determine the weight!

This can be said to be a score delivery question, but some careless students may lose points here. The main reason is that the range definition of the array is inappropriate because the space is sufficient, the data range during the exam is slightly larger. Of course, there are still some students who make mistakes in the simulation. I can only say that we must have a few more pairs of special data to ensure a full score!

var  m,n,sum:longint;  q:array[0..1000] of longint;  head,tail:longint;  procedure init;  var bo:boolean;  i,j,x:longint;  begin    readln(m,n);    head:=0;tail:=0; sum:=0;    for i:=1 to n do      begin        bo:=false;        read(x);        for j:=head+1 to   tail do          if q[j]=x then            begin   bo:=true;   break; end;        if not bo  then          begin            if  tail-head>=M then  inc(head);            inc(tail);  q[tail]:=x;inc(sum);          end      end;      writeln(sum);  end;begin  assign(input,‘‘);reset(input);  assign(output,‘translate.out‘); rewrite(output);  init;  close(input); close(output);end.
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Machine Translation (noip2010)

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