1.
Implement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.
https://blog.csdn.net/freeelinux/article/details/60472659
1.
Implement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.
https://blog.csdn.net/freeelinux/article/details/60472659