s0513

2023-01-31 12:28:03 +08:00
parent 63f60259ee
commit c442846324
2 changed files with 35 additions and 0 deletions
--- a/src/s0513_find_bottom_left_tree_value.cpp
+++ b/src/s0513_find_bottom_left_tree_value.cpp
@@ -0,0 +1,20 @@
+#include "s0513_find_bottom_left_tree_value.hpp"
+
+int findBottomLeftValue(TreeNode* root) {
+  int result{0};
+  queue<TreeNode *> q;
+  if (root) q.push(root);
+  int size{0};
+  TreeNode *front = root;
+  while (!q.empty()) {
+    size = q.size();
+    for (int i{0}; i < size; ++i) {
+      front = q.front();
+      q.pop();
+      if (i == 0) result = front->val;
+      if (front->left) q.push(front->left);
+      if (front->right) q.push(front->right);
+    }
+  }
+  return result;
+}