poj2406 Power Strings

#include<cstdio>
#include<cstring>
#define LL long long
inline void write(LL a)
{
	if (a<0){printf("-");a=-a;}
	if (a>=10)write(a/10);
	putchar(a%10+‘0‘);
}
inline void writeln(LL a){write(a);printf("\n");}
int next[1000010];
char s[1000010];
int l,j,k;
inline void pre()
{
	memset(next,0,sizeof(next));
	j=0;
	for (int i=2;i<=l;i++)
	{
	  	while (j>0&&s[j+1]!=s[i])j=next[j];
	  	if (s[j+1]==s[i])j++;
	  	next[i]=j;
	}
}
int main()
{
	while (scanf("%s",s+1)&&s[1]!=‘.‘)
	{
		l=strlen(s+1);
		pre();
		int len=l-next[l];
		if (l%len)writeln(1);
		else writeln(l/len);
	}
	return 0;
}