human
Maximize sum of MEX values of each node in an N | Function to create an N - ary Tree.
Traverse the edges.
Add edges.
Function to get the maximum sum of MEX values of tree rooted at 1.
Initialize mex.
Iterate through all children of node.
Recursively find maximum sum of MEX values of each node in tree rooted at u.
Store the maximum sum of MEX of among all subtrees.
Increase the size of tree rooted at current node.
Resulting MEX for the current node of the recursive call.
Driver Code.
Given N nodes.
Given N - 1 edges.
Stores the tree.
Generates the tree.
Returns maximum sum of MEX values of each node"
How can the above be solved in Python?
 ... Can you provide a code to maximize sum of MEX values of each node in an N and the other steps required?
assistant
#Here is code to maximize sum of MEX values of each node in an N and the other steps required.
 def makeTree ( tree , edges , N ) :
	for i in range ( N - 1 ) :
		u = edges [ i ] [ 0 ]
		v = edges [ i ] [ 1 ]
		tree [ u ] . append ( v )
	return tree
def dfs ( node , tree ) :
	mex = 0
	size = 1
	for u in tree [ node ] :
		temp = dfs ( u , tree )
		mex = max ( mex , temp [ 0 ] )
		size += temp [ 1 ]
	return [ mex + size , size ]
if __name__ == ' _ _ main _ _ ' :
	N = 7
	edges = [ [ 1 , 4 ] , [ 1 , 5 ] , [ 5 , 2 ] , [ 5 , 3 ] , [ 4 , 7 ] , [ 7 , 6 ] ]
	tree = [ [ ] for i in range ( N + 1 ) ]
	tree = makeTree ( tree , edges , N )
	print ( dfs ( 1 , tree ) [ 0 ] )