HDU 3336 Count the string(乱搞）

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define N 200001
#define M 10007
char str
;
int p
;
int main()
{
int i,j,t,n,start,end,ans;
scanf("%d",&t);
while(t--)
{
scanf("%d%*c",&n);
gets(str);
ans = n%M;
start = 0;
j = 0;
for(i = 1;i <= n-1;i ++)
{
if(str[i] == str[0])
{
p[j] = i;
ans++;
j ++;
}
}
end = j-1;
for(i = 1;i <= n-1;i ++)
{
j = 0;
while(start <= end)
{
if(str[p[start]+1] == str[i])
{
ans++;
p[j] = p[start]+1;
j ++;
}
start ++;
}
if(ans > M)
ans = ans%M;
if(j == 0)
break;
start = 0;
end = j-1;
}
printf("%d\n",ans);
}
return 0;
}