Sum of Leaf Node

Sum of Leaf Node

  September 11, 2017    

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Code:
int sumOfLeafNodes(Node *r ){
     if(r==NULL)
     return 0;
     if(r->left == NULL && r->right==NULL)
     return r->data;
     return sumOfLeafNodes(r->left)+sumOfLeafNodes(r->right);
}