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author | Yuqian Yang <crupest@crupest.life> | 2025-02-28 23:13:39 +0800 |
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committer | Yuqian Yang <crupest@crupest.life> | 2025-02-28 23:13:39 +0800 |
commit | 99e2e923d0c77b02f3fb4ff648ea916954868606 (patch) | |
tree | ec8e03f6f2cd1ce43990fb4fe6cd631967d0237e /store/works/solutions/leetcode/cpp/543.cpp | |
parent | 1cee979f5d36b311a03cc7397a036ba11caf3d42 (diff) | |
download | crupest-99e2e923d0c77b02f3fb4ff648ea916954868606.tar.gz crupest-99e2e923d0c77b02f3fb4ff648ea916954868606.tar.bz2 crupest-99e2e923d0c77b02f3fb4ff648ea916954868606.zip |
chore(store): move everything to store.
Diffstat (limited to 'store/works/solutions/leetcode/cpp/543.cpp')
-rw-r--r-- | store/works/solutions/leetcode/cpp/543.cpp | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/store/works/solutions/leetcode/cpp/543.cpp b/store/works/solutions/leetcode/cpp/543.cpp new file mode 100644 index 0000000..f782521 --- /dev/null +++ b/store/works/solutions/leetcode/cpp/543.cpp @@ -0,0 +1,32 @@ +struct TreeNode {
+ int val;
+ TreeNode *left;
+ TreeNode *right;
+ TreeNode(int x) : val(x), left(nullptr), right(nullptr) {}
+};
+
+#include <algorithm>
+
+class Solution {
+public:
+ int diameterOfBinaryTree(TreeNode *root) {
+ int max = 0;
+ depth(root, max);
+ return max;
+ }
+
+ static int depth(TreeNode *root, int &max) {
+ if (root == nullptr)
+ return -1;
+
+ auto left = depth(root->left, max) + 1;
+ auto right = depth(root->right, max) + 1;
+
+ auto current_max = left + right;
+ if (current_max > max) {
+ max = current_max;
+ }
+
+ return std::max(left, right);
+ }
+};
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