华为面试题答案找出最大长度子字符串

代码如下:int findMaxSubstring(char* str){    int maxLength = 0;    int maxStartIndex = 0;    int curLength = 0;    int curStartIndex = 0;    bool isFind = 0;    for(unsigned int i = 0;i<strlen>= ‘a’ && str[i] &lt;= ‘z’)        {            if(isFind == 0)            {