BF算法实现 classSolution{public:intstrStr(stringhaystack,stringneedle){if(haystack.size() < needle.size())return-1;for(inti =0; i <= haystack.size() - needle.size(); i++) {intflag =1;for(intj =0; j < needle.size(); j++) {if(haystack[i + j] != needle[j]) { flag =0;br...