题解 | #合并二叉树#
合并二叉树
http://www.nowcoder.com/practice/7298353c24cc42e3bd5f0e0bd3d1d759
简单的递归即可
import . "nc_tools"
type TreeNode struct {
Val int
Left *TreeNode
Right *TreeNode
}
func mergeTrees( t1 *TreeNode , t2 *TreeNode ) *TreeNode {
if t1==nil {
return t2
}
if t2==nil {
return t1
}
t1.Val+=t2.Val
t1.Left=mergeTrees(t1.Left,t2.Left)
t1.Right=mergeTrees(t1.Right,t2.Right)
return t1
}
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