OJ-Problems-Source/HDOJ/3336_autoAC.cpp
2016-09-01 20:54:35 +08:00

45 lines
847 B
C++

#include <cstdio>
#include <cstring>
int const MAX = 200000 + 5;
int const MOD = 10007;
int next[MAX];
char s[MAX];
void get_next()
{
int i = 0, j = -1;
next[0] = -1;
while(s[i] != '\0')
{
if(j == - 1 || s[i] == s[j])
{
i++;
j++;
next[i] = j;
}
else
j = next[j];
}
}
int main()
{
int T, len, ans;
scanf("%d", &T);
while(T--)
{
memset(next, 0, sizeof(next));
scanf("%d %s", &len, s);
get_next();
ans = len;
for(int i = 1; i <= len; i++)
{
int tmp = next[i];
while(tmp)
{
ans = (ans + 1) % MOD;
tmp = next[tmp];
}
}
printf("%d\n", ans);
}
}