力扣------统计包含给定前缀的字符串

int prefixCount(char ** words, int wordsSize, char * pref){
    
    int len=strlen(pref);
    int ans=0;
    for(int a=0;a<wordsSize;a++){
    
        if(strlen(words[a])>=len){
    
            int count=0;
            for(int b=0;b<len;b++){
    
                if(words[a][b]==pref[b]){
    
                    count++;
                }
            }
            if(count==len){
    
                ans++;
            }
        }
    }
    return ans;
}