Java | Leetcode Java题解之第513题找树左下角的值
题目：
题解：
class Solution {
public int findBottomLeftValue(TreeNode root) {
int ret = 0;
Queue<TreeNode> queue = new ArrayDeque<TreeNode>();
queue.offer(root);
while (!queue.isEmpty()) {
TreeNode p = queue.poll();
if (p.right != null) {
queue.offer(p.right);
}
if (p.left != null) {
queue.offer(p.left);
}
ret = p.val;
}
return ret;
}
}