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Refactoring (#4146)

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This commit is contained in:
Ishan Makadia
2023-04-14 05:34:47 -03:00
committed by GitHub
parent d241fafd64
commit 0c618b5ee8
3 changed files with 26 additions and 22 deletions
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6
src/main/java/com/thealgorithms/datastructures/trees/CheckTreeIsSymmetric.java
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@ -44,10 +44,14 @@ public class CheckTreeIsSymmetric {
return true;
}
if (leftSubtreeRoot == null || rightSubtreRoot == null || leftSubtreeRoot.data != rightSubtreRoot.data) {
if (isInvalidSubtree(leftSubtreeRoot, rightSubtreRoot)) {
return false;
}
return isSymmetric(leftSubtreeRoot.right, rightSubtreRoot.left) && isSymmetric(leftSubtreeRoot.left, rightSubtreRoot.right);
}
private static boolean isInvalidSubtree(Node leftSubtreeRoot, Node rightSubtreeRoot) {
return leftSubtreeRoot == null || rightSubtreeRoot == null || leftSubtreeRoot.data != rightSubtreeRoot.data;
}
}