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feat(go/backtracking): add go code (#488)
* feat(go/backtracking): add go code * feat(backtracking): add n_queens in go * feat(backtracking): add /preorder_traversal_i_compact in go * feat(backtracking): add /preorder_traversal_ii_compact in go * feat(backtracking): add /preorder_traversal_ii_template in go * feat(backtracking): add preorder_traversal_iii_compact in go * feat(backtracking): add preorder_traversal_test in go * feat(backtracking): add permutations_i in go * feat(backtracking): add permutations_ii in go * feat(backtracking): add permutation_test in go * feat(backtracking): fix bug in go * Update permutations_i.go --------- Co-authored-by: Yudong Jin <krahets@163.com>
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// File: preorder_traversal_i_compact.go
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// Created Time: 2023-05-09
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// Author: Reanon (793584285@qq.com)
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package chapter_backtracking
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import (
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. "github.com/krahets/hello-algo/pkg"
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)
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/* 前序遍历:例题一 */
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func preOrderI(root *TreeNode, res *[]*TreeNode) {
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if root == nil {
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return
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}
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if int(root.Val) == 7 {
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// 记录解
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*res = append(*res, root)
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}
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preOrderI(root.Left, res)
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preOrderI(root.Right, res)
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}
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