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lines changed Original file line number Diff line number Diff line change 1+ // 시간복잡도: O(n) - 모든 노드를 한번씩 방문
2+ // 공간복잡도: O(logn) - 균형 트리인 경우 / O(n) - 한쪽으로 치우친 트리인 경우
3+ // 풀이: 재귀적으로 트리를 순회하면서 두 트리의 노드 값이 같은지 확인
4+
5+ /**
6+ * Definition for a binary tree node.
7+ * function TreeNode(val, left, right) {
8+ * this.val = (val===undefined ? 0 : val)
9+ * this.left = (left===undefined ? null : left)
10+ * this.right = (right===undefined ? null : right)
11+ * }
12+ */
13+ /**
14+ * @param {TreeNode } p
15+ * @param {TreeNode } q
16+ * @return {boolean }
17+ */
18+ var isSameTree = function ( p , q ) {
19+ if ( p === null && q === null ) return true ;
20+
21+ if ( p === null || q === null ) return false ;
22+
23+ if ( p . val != q . val ) return false ;
24+
25+ return isSameTree ( p . left , q . left ) && isSameTree ( p . right , q . right ) ;
26+ } ;
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