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Implement strStr() 字符串匹配
Implement strStr().
Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.
Update (2014-11-02):
The signature of the function had been updated to return the index instead of the pointer. If you still see your function signature returns a char * or String, please click the reload button to reset your code definition.
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Two Pointers Stringclass Solution {public: int strStr(char *haystack, char *needle) { int hayl=strlen(haystack); int nel=strlen(needle); for(int i=0;i<=hayl-nel;++i){ char *h=haystack+i; char *n=needle; while(*n!=‘\0‘){ if(*n!=*h) break; else{ ++h; ++n; } } if(*n==‘\0‘) return i; } return -1; }};
Implement strStr() 字符串匹配
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