ZOJ2006 (最小表示法)

var s:ansistring;
    cas:longint;
function minp(st,len:longint):longint;
var p1,p2,k,tmp:longint;
begin
    p1:=0; p2:=1; k:=0;
    while ((p1<len)and(p2<len)and(k<=len)) do
    begin
        tmp:=ord(s[st+(p1+k) mod len])-ord(s[st+(p2+k) mod len]);
        if (tmp=0) then inc(k)    else
        begin
            if (tmp<0) then p2:=p2+k+1 else p1:=p1+k+1;
            if (p1=p2) then inc(p2); k:=0;
        end;
    end;
    if (p1>p2) then exit(p2+st) else exit(p1+st);
end;
begin
    readln(cas);
    while cas>0 do begin dec(cas);
    readln(s);
    writeln(minp(1,length(s)));
    end;
end.

 

posted @ 2015-04-28 10:19  rpSebastian  阅读(229)  评论(0编辑  收藏  举报