多处用strlen()报TLE😣
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int main()
{
char s1[1000010], s2[1000010];
scanf("%s", s1);
scanf("%s", s2);
int len1 = strlen(s1);
int len2 = strlen(s2);
int len = len2;
int *next = (int *)malloc(sizeof(int) * len2);
next[0] = 0;
int x = 1, now = 0;
while (x < len2)
{
if (s2[now] == s2[x])
next[x++] = ++now;
else if (now)
now = next[now - 1];
else
next[x++] = 0;
}
x = now = 0;
while (x < len1)
{
if (s1[x] == s2[now])
{
x++;
now++;
}
else if (now)
now = next[now - 1];
else
x++;
if (now == len2)
{
printf("%d\n", x - now + 1);
now = next[now - 1];
}
}
while (len2--)
{
printf("%d ", next[len - len2 - 1]);
}
return 0;
}
