wacdzz22的博客

代码如下：     int reverse(int x) {         int result = 0;         int err = 0;         int temp;         bool sign = true;         if(x             sign = false;             x=-x;

代码如下： bool isPalindrome(int x) {         int high = x;         int min = 0;         int temp;         while(high>0)         {             temp = high%10;             min = 10*min+temp

13.Roman to integer int romanToInt(string s) {         int result = ToNum(s[0]);         for(int i = 1; i         {             if(ToNum(s[i-1])                 result +=ToNum(s[i])-2*ToNum(s

21 merged two sorted lists 开始时用错了方式 //ListNode* merge; //merge->next = new ListNode(l1->val); 提示错误：Line 39: member access within null pointer of type 'struct ListNode' 错误原因：对空链表进行操作； 修改方案：加头

28. Implement strStr() 代码如下： class Solution { public:     int strStr(string haystack, string needle) {         int offset;         int h = haystack.length();         int n = needle.lengt