528
个编辑
更改
→查询
repres[x] = find_repre(repres[x])
repres[x] = find_repre(repres[x])
return repres[x]
return repres[x]
</syntaxhighlight>
简化为
<syntaxhighlight lang=python>
def find_repr(x):
if repres[x] != x:
repres[x] = find_repre(repres[x])
return repres[x]
</syntaxhighlight>
</syntaxhighlight>