Commitd53c2b7

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Added python solution for 323-Number-of-Connected-Components-in-an-Undirected-Graph

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	`1`	`+classUnionFind:`
	`2`	`+def__init__(self):`
	`3`	`+self.f= {}`
	`4`	`+`
	`5`	`+deffindParent(self,x):`
	`6`	`+y=self.f.get(x,x)`
	`7`	`+ifx!=y:`
	`8`	`+y=self.f[x]=self.findParent(y)`
	`9`	`+returny`
	`10`	`+`
	`11`	`+defunion(self,x,y):`
	`12`	`+self.f[self.findParent(x)]=self.findParent(y)`
	`13`	`+`
	`14`	`+classSolution:`
	`15`	`+defcountComponents(self,n:int,edges:List[List[int]])->int:`
	`16`	`+dsu=UnionFind()`
	`17`	`+fora,binedges:`
	`18`	`+dsu.union(a,b)`
	`19`	`+returnlen(set(dsu.findParent(x)forxinrange(n)))`

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