same tree 

 1 /**
 2  * Definition for binary tree
 3  * struct TreeNode {
 4  *     int val;
 5  *     TreeNode *left;
 6  *     TreeNode *right;
 7  *     TreeNode(int x) : val(x), left(NULL), right(NULL) {}
 8  * };
 9  */
10 class Solution {
11 public:
12     bool isSameTree(TreeNode *p, TreeNode *q) {
13         // Start typing your C/C++ solution below
14         // DO NOT write int main() function
15          if ((p!= NULL) && (q!=NULL))
16         {
17             if (p->val == q->val)
18             {                
19                 bool templ = isSameTree(p->left,q->left);
20                 bool tempr = isSameTree(p->right,q->right);
21                 return templ&&tempr;        
22                 
23             }
24             else
25             {
26                 return false;
27             }
28         }
29         else if (p!=NULL)
30         {
31             return false;
32         }
33         else if (q!=NULL)
34         {
35             return false;
36         }
37         else
38         {
39             return true;
40         }
41 
42     }
43 };

 

 

/**
 * Definition for binary tree
 * struct TreeNode {
 *     int val;
 *     TreeNode *left;
 *     TreeNode *right;
 *     TreeNode(int x) : val(x), left(NULL), right(NULL) {}
 * };
 */
class Solution {
public:
    bool isSameTree(TreeNode *p, TreeNode *q) {
        // Start typing your C/C++ solution below
        // DO NOT write int main() function
         if ((p!= NULL) && (q!=NULL))
        {
            if (p->val == q->val)
            {                
                bool templ = isSameTree(p->left,q->left);
                bool tempr = isSameTree(p->right,q->right);
                return templ&&tempr;        
                
            }
            else
            {
                return false;
            }
        }
        else if (p!=NULL)
        {
            return false;
        }
        else if (q!=NULL)
        {
            return false;
        }
        else
        {
            return true;
        }

    }
};

 

posted @ 2013-05-11 21:45  立春了  Views(134)  Comments(0)    收藏  举报