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| author | Sebastiano Tronto <sebastiano@tronto.net> | 2025-12-08 18:21:56 +0100 |
|---|---|---|
| committer | Sebastiano Tronto <sebastiano@tronto.net> | 2025-12-08 18:21:56 +0100 |
| commit | 739416b040965ef61492f07c1d0196fcd850ab54 (patch) | |
| tree | 8d8ddc087fe6e5eefa651c725aeddba52bc54a45 /2025/08/a.py | |
| parent | bb6a7fd447db8ebafe9df80097821cb0105907f7 (diff) | |
| download | aoc-739416b040965ef61492f07c1d0196fcd850ab54.tar.gz aoc-739416b040965ef61492f07c1d0196fcd850ab54.zip | |
Small optimization
Diffstat (limited to '2025/08/a.py')
| -rw-r--r-- | 2025/08/a.py | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/2025/08/a.py b/2025/08/a.py index b829dca..6201d09 100644 --- a/2025/08/a.py +++ b/2025/08/a.py | |||
| @@ -7,7 +7,10 @@ class SetJoin: | |||
| 7 | self._parent = [i for i in range(n)] | 7 | self._parent = [i for i in range(n)] |
| 8 | 8 | ||
| 9 | def rep(self, i): | 9 | def rep(self, i): |
| 10 | return i if self._parent[i] == i else self.rep(self._parent[i]) | 10 | if self._parent[i] != i: |
| 11 | self._parent[i] = self.rep(self._parent[i]) | ||
| 12 | return self._parent[i] | ||
| 13 | |||
| 11 | 14 | ||
| 12 | def join(self, i, j): | 15 | def join(self, i, j): |
| 13 | self._parent[self.rep(i)] = self.rep(j) | 16 | self._parent[self.rep(i)] = self.rep(j) |