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-rw-r--r--other/pseudo_palindrome_binary_tree.cpp29
1 files changed, 29 insertions, 0 deletions
diff --git a/other/pseudo_palindrome_binary_tree.cpp b/other/pseudo_palindrome_binary_tree.cpp
new file mode 100644
index 0000000..63b2cac
--- /dev/null
+++ b/other/pseudo_palindrome_binary_tree.cpp
@@ -0,0 +1,29 @@
+#include "leetcode.h"
+
+class Solution {
+public:
+ int pseudoPalindromicPaths(TreeNode *root) {
+ vector<int> v(10, 0);
+ dfs(root, v);
+ return count;
+ }
+
+private:
+ int count = 0;
+ void dfs(TreeNode *root, vector<int> v) {
+ if (root == NULL)
+ return;
+ v[root->val]++;
+ if (root->left == NULL && root->right == NULL) {
+ int oddCount = 0;
+ for (auto x : v)
+ if (x % 2)
+ oddCount++;
+ if (oddCount <= 1)
+ count++;
+ return;
+ }
+ dfs(root->left, v);
+ dfs(root->right, v);
+ }
+};