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Copy pathSameTree.java
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38 lines (29 loc) · 809 Bytes
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package leetcode.easy;
import util.TreeNode;
import java.util.LinkedList;
import java.util.Queue;
public class SameTree {
boolean isSameTree(TreeNode root1, TreeNode root2) {
Queue<TreeNode> queue = new LinkedList<>();
queue.add(root1);
queue.add(root2);
// Loop till the queue is not empty
while (!queue.isEmpty()) {
TreeNode first = queue.poll();
TreeNode second = queue.poll();
// Check for equality
if (first == null && second == null) {
continue;
} else if (
first == null || second == null || first.val != second.val) {
return false;
}
// Add other nodes
queue.add(first.left);
queue.add(second.left);
queue.add(first.right);
queue.add(second.right);
}
return true;
}
}