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我没辙了

Posted by ben32 at 2005-05-11 18:38:29 on Problem 2353
不可能有错了呀!大虾们看一下!我是每个房间枚举双向路径的,用迭代做的,这是代码:
type arr1=array[1..100,1..2]of longint;
     arr=array[1..500]of record
                           w:longint;
                           st:arr1;
                         end;
var a,b:arr;
    c:array[1..500]of longint;
    g,m,n,i,j,l,t,s:longint;
begin
  readln(n,m);
  for i:=1 to m do
    begin
      read(a[i].w);
      a[i].st[1,1]:=i;
    end;
  readln;
  for i:=2 to n do
    begin
      for j:=1 to m do
        read(c[j]);
      readln;
      for j:=1 to m do
        begin
          s:=maxlongint;
          t:=0;
          g:=j;
          for l:=j downto 1 do
            begin
              t:=t+c[l];
              if t+a[l].w<s
                then begin
                       s:=t+a[l].w;
                       g:=l;
                     end;
            end;
          t:=0;
          for l:=j to m do
            begin
              t:=t+c[l];
              if t+a[l].w<s
                then begin
                       s:=t+a[l].w;
                       g:=l;
                     end;
            end;
          b[j].w:=s;
          b[j].st:=a[j].st;
          b[j].st[i,1]:=g;
          b[j].st[i,2]:=j;
          b[j].st[1,1]:=a[g].st[1,1];
        end;
      a:=b;
    end;
  g:=1;
  for i:=2 to m do
    if a[i].w<a[g].w
      then g:=i;
  writeln(a[g].st[1,1]);
  for i:=2 to n do
    if a[g].st[i,1]<a[g].st[i,2]
      then for j:=a[g].st[i,1] to a[g].st[i,2] do
             writeln(j)
      else for j:=a[g].st[i,1] downto a[g].st[i,2] do
             writeln(j);
end.
帮我找找错吧!我测了一些特殊数据,都没问题的。也可以给点数据看看!谢谢谢谢!

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