* add Q&A in the summary.md of computational complexity chapter
* add Q&A in the summary.md of graph
* Update summary.md
* Update summary.md
* Update summary.md
* Update summary.md
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Co-authored-by: Yudong Jin <krahets@163.com>
* Update hash_collision.md
a detailed description of the conditions for converting a linked list into a red-black tree is as follows.
```java
final void treeifyBin(Node<K,V>[] tab, int hash) {
int n, index; Node<K,V> e;
if (tab == null || (n = tab.length) < MIN_TREEIFY_CAPACITY)
}
```
* Update hash_collision.md
---------
Co-authored-by: Yudong Jin <krahets@163.com>
* 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>
* fix(codes/cpp): Memory leak fix: the space was not freed when pop removed the element.
* fix(codes/cpp): Fix access error when printArray(arr, 0)
* Update PrintUtil.hpp
* fix(codes/c): Fix some errors of cmake build
* feat(codes/c): Add hashing_search.c
* styles(codes/c): Modify function description
* styles(codes/c): Modify binary_search.c code style
* fix(codes/c): Fix the problem in binary_tree_bfs.c and the problem that the memory is not released.
---------
Co-authored-by: Yudong Jin <krahets@163.com>