s0111

src/s0111_minimum_depth_of_binary_tree.cpp

@@ -0,0 +1,12 @@
+#include "s0111_minimum_depth_of_binary_tree.hpp"
+
+int S0111::minDepth(TreeNode* root) {
+  if (root == nullptr) return 0;
+  if (root->left == nullptr && root->right != nullptr) {
+    return minDepth(root->right) + 1;
+  } else if (root->left != nullptr && root->right == nullptr) {
+    return minDepth(root->left) + 1;
+  } else {
+    return min(minDepth(root->left), minDepth(root->right)) + 1;
+  }
+}