class Solution { public: bool isSameTree(TreeNode* p, TreeNode* q) { if(!p&&!q) return true; else if(p&&!q) return false; else if(!p&&q) return false; else{ if(p->val!=q->val) return false; else return isSameTree(p->left,q->left)&&isSameTree(p->right,q->right); } } };
100. Same Tree
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