8000 update _144 · aav789/Leetcode@aac8d0b · GitHub
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update _144
1 parent 35d24a8 commit aac8d0b

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2 files changed

+6
-7
lines changed

2 files changed

+6
-7
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‎src/main/java/com/fishercoder/solutions/_144.java

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Original file line numberDiff line numberDiff line change
@@ -28,8 +28,7 @@ public List<Integer> preorderTraversal(TreeNode root) {
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public static class Solution2 {
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public List<Integer> preorderTraversal(TreeNode root) {
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List<Integer> list = new ArrayList();
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return pre(root, list);
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return pre(root, new ArrayList());
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}
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List<Integer> pre(TreeNode root, List<Integer> list) {

‎src/test/java/com/fishercoder/_144Test.java

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -3,13 +3,13 @@
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import com.fishercoder.common.classes.TreeNode;
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import com.fishercoder.common.utils.TreeUtils;
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import com.fishercoder.solutions._144;
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import org.junit.BeforeClass;
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import org.junit.Test;
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import org.junit.jupiter.api.BeforeEach;
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import org.junit.jupiter.api.Test;
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import java.util.Arrays;
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import java.util.List;
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import static org.junit.Assert.assertEquals;
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import static org.junit.jupiter.api.Assertions.assertEquals;
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public class _144Test {
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private static _144.Solution1 solution1;
@@ -18,8 +18,8 @@ public class _144Test {
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private static TreeNode root;
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private static List<Integer> inorder;
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@BeforeClass
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public static void setup() {
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@BeforeEach
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public void setup() {
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solution1 = new _144.Solution1();
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solution2 = new _144.Solution2();
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solution3 = new _144.Solution3();

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