PKU 1509 Glass Beads

字符串最小表示:

 

#include<stdio.h>
#include
<string.h>
int min(int a,int b)
{
if(a<b) return a;
else return b;
}
int main()
{
char str[10001],s[20002];
int k,p1,p2,len;
int T,ans;
scanf(
"%d",&T);
while(T--)
{
scanf(
"%s",str);
len
=strlen(str);
memset(s,
'\0',sizeof(s));
strcpy(s,str);
strcpy(s
+len,str);
p1
=0,p2=1,k=0;
while(1)
{
if(s[p1+k]==s[p2+k])
{
k
++;
if(k==len)
{
ans
=min(p1,p2);
break;
}
}
else if(s[p1+k]>s[p2+k])
{
p1
=p1+k+1;
k
=0;
if(p1==p2) p1++;
}
else
{
p2
=p2+k+1;
k
=0;
if(p2==p1) p2++;
}
if(p1>=len)
{
ans
=p2;
break;
}
if(p2>=len)
{
ans
=p1;
break;
}
}
printf(
"%d\n",ans+1);
}
return 0;
}

 

posted on 2010-05-24 19:55  keep going  阅读(196)  评论(0编辑  收藏  举报