Submission #1642603

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Source Code Expand

F=->z,c{f=G[c].size==2?1:0;r=[0,c];G[c].map{|e|e!=z&&(x,y=F[c,e];r=[r,[x+f,y]].max)};r}
G=(0..gets.to_i).map{[]}
$<.map{|e|a,b=e.split.map &:to_i;G[a]<<b;G[b]<<a}
p-~G.count{|x,y|!y}+F[-1,F[-1,1][1]][0]

Submission Info

Compile Error

./Main.rb:3: warning: `&' interpreted as argument prefix
./Main.rb:4: warning: possibly useless use of + in void context

Judge Result