PHP实现二叉树的深度优先与广度优先遍历方法
发布时间:2020-05-26 06:16:49 所属栏目:PHP 来源:互联网
导读:这篇文章主要介绍了PHP实现二叉树的深度优先与广度优先遍历方法,涉及php针对二叉树进行遍历的相关技巧,具有一定参考借鉴价值,需要的朋友可以参考下
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本文实例讲述了PHP实现二叉树的深度优先与广度优先遍历方法。分享给大家供大家参考。具体如下: data; #左节点先入队,然后右节点入队 if ($cnode->left != null) array_unshift($queue,$cnode->left); if ($cnode->right != null) array_unshift($queue,$cnode->right); } return $traverse_data; } #深度优先遍历,使用一个栈实现 function depth_first_traverse($btree) { $traverse_data = array(); $stack = array(); array_push($stack,$btree); while (!empty($stack)) { $cnode = array_pop($stack); $traverse_data[] = $cnode->data; if ($cnode->right != null) array_push($stack,$cnode->right); if ($cnode->left != null) array_push($stack,$cnode->left); } return $traverse_data; } $root = new Node(); $node1 = new Node(); $node2 = new Node(); $node3 = new Node(); $node4 = new Node(); $node5 = new Node(); $node6 = new Node(); $root->data = 1; $node1->data = 2; $node2->data = 3; $node3->data = 4; $node4->data = 5; $node5->data = 6; $node6->data = 7; $root->left = $node1; $root->right = $node2; $node1->left = $node3; $node1->right = $node4; $node2->left = $node5; $node2->right = $node6; $traverse = breadth_first_traverse($root); print_r($traverse); echo ""; $traverse = depth_first_traverse($root); print_r($traverse);希望本文所述对大家的php程序设计有所帮助。 (编辑:安卓应用网) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |
