题解 | #反转字符串#

/**
 * 反转字符串
 * @param str string字符串 
 * @return string字符串
 */
char* solve(char* str ) {
    // write code here
    int len = strlen(str) - 1;
    char j = 0; 
    for (int i = 0; i < len; i++, len--)
    {
        j = str[i];
        str[i] = str[len];
        str[len] = j;
    }
    return str;
}