[Leetcode - Easy] Path Sum #38
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suhwan2004
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BangDori,
Legitgoons,
asuan99 and
jungmyunggi
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문제
Constraints
Edge Case
root가 없을 시에 바로 false
풀이
root부터 시작하여 dfs를 돌며 모든 구간 합을 구한다.
=> 이 과정에서 구간합이 targetSum이 있다면 true를 반환한다.
어려웠던 점
X
알게된 점
X