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Update 4_Kth_Largest_In_BST.cpp #13

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Update 4_Kth_Largest_In_BST.cpp #13

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19 changes: 17 additions & 2 deletions Lecture-070/4_Kth_Largest_In_BST.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,22 @@
using namespace std;

int kthLargest(Node* root, int &index, int K) {

if(root == NULL) {
return -1;
}

// Reverse Inorder Traversal
int right = kthLargest(root->right, index, K);
if(right != -1) {
return right;
}

index++;
if(index == K) {
return root->data;
}

return kthLargest(root->left, index, K);
}

int main() {
Expand All @@ -24,4 +39,4 @@ int main() {

cout << "Required answer = " << ans << endl;
return 0;
}
}