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Method permutation2

Code/leetcode/offer1/Offer38.java:48–57  ·  view source on GitHub ↗

59ms 直接利用HashSet在回溯的时候去重

(String s)

Source from the content-addressed store, hash-verified

source not stored for this graph (policy: none)

Callers

nothing calls this directly

Calls 2

dfs2Method · 0.95
sizeMethod · 0.45

Tested by

no test coverage detected