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Recorrido Zig-Zag en un Árbol Binario #11

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dpalmasan opened this issue Sep 25, 2021 · 0 comments
Open

Recorrido Zig-Zag en un Árbol Binario #11

dpalmasan opened this issue Sep 25, 2021 · 0 comments

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@dpalmasan
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Dada la raíz de un árbol binario, retorne el recorrido en orden zig-zag de sus nodos (es decir, de izquierda a derecha, luego de derecha a izquierda y así hasta recorrer todos los nodos alternando entre niveles).

Ejemplo:

image

Entrada: raíz (nodo con valor 3)
Salida: [[3],[20,9],[15,7]]

Como referencia, la clase nodo puede definirse como:

class TreeNode:
    def __init__(self, val=0, left=None, right=None):
        self.val = val
        self.left = left
        self.right = right
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