Implement strStr(). Returns a pointer to the first occurrence of needle in haystack, or null if needle is not part of haystack. 字符串匹配。 这里给出KMP算法的实现,还可以用BF,BM算法等。 class Solution {public:cha
Description Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Solution 暴力法。 class Solution {public:int strStr(string haystack, string needl
方法1: python版本 class Solution:def strStr(self, haystack: str, needle: str) -> int:c=-1for i in range(len(haystack)-len(needle)+1):if haystack[i:i+len(needle)]==needle:c=ibreakreturn c java版本 cl
题目要求: mplement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. 这道题是一个字符匹配问题,可以采用KMP算法。 下面是采用一般方法的解答: class Solution{public:i
题目: Implement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. 分析: 我记得有个KMP匹配算法,我写的是最low的那种。我去看看。 代码: class Solutio