问题描述
这里，树中的每个节点都是一个关联数组，具有映射到非唯一整数的必需 =QUERY(IMPORTRANGE("ID","Sheet!B:C"),"select Col1,avg(Col2)
where Col1 is not null
group by Col1
label avg(Col2)''",0)
属性和可选的 val 属性（如果存在，则映射到子节点。最外层数组中将只有一个根节点，否则树将完全为空（空）。
children对上述结构的 $tree = [
"val" => 1,"children" => [
[
"val" => 2,"children" => [
[
"val" => 7,"children" => [
["val" => 2],["val" => 18],["val" => 12]
]
]
]
],[
"val" => 4,"children" => [
["val" => 5],[
"val" => 6,"children" => [
["val" => 12],["val" => 11],["val" => 10],["val" => 9],]
],["val" => 13]
]
],[
"val" => 3,"children" => [
["val" => 15]
]
],[
"val" => 17,"children" => [
["val" => 16],[
"val" => 2,"children" => [
["val" => 14],[
"val" => 18,"children" => [
["val" => 4],["val" => 7]
]
],["val" => 27],["val" => 29],]
]
]
]
]
];
调用应返回
prioritize_nodes($tree,18)解决方法
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