10-week-algorithm-excercise-master/OneQuestionPerDay/README.md

每日一题

Day	Number	Title	Solutions
1	70	climbing-stairs	递推(Go,Py)
2	66	plus-one	O(n)遍历(Go,Py)
3	1	two-sum	先排序后双指针夹逼(Go), 字典缓存差值的索引(Go,Py)
4	24	swap-nodes-in-pairs	迭代(Go,Py), 递归(Go,Py)
5	21	merge-two-sorted-lists	迭代(Go, Py), 递归(Go,Py)
6	299	bulls-and-cows	数组记录可能的cows(Go, Py)
7	641	design-circular-deque	双指针(Go),双指针优化(Go,Py)
8	350	intersection-of-two-arrays-ii	哈希表计数(Go，Py))
9	LCOF59	mac-sliding-window	单调递减队列(Go，Py))
10	1021	remove-outermost-parentheses	双指针记录有效括号的起止(Go，Py))
11	412	fizz-buzz	遍历(Go，Py))
12	258	add-digits	迭代(Go，Py)), 取余(Go，Py))
13	104	maximum-depth-of-binary-tree	递归(Go，Py)), 队列(Go，Py))
14	283	move-zeroes	统计0的个数(Go,Py), 快慢指针(Go)
15	94	binary-tree-inorder-traversal	递归(Go,Py),栈(Go,Py), Morris遍历(Go,Py)
16	LCOF5	replace-space	新建一个buff(Go,Py)
17	LCOF6	reverse-print	遍历(Go,Py)
18	236	lowest-common-ancestor-of-a-binary-tree	递归(Go,Py)
19	1	two-sum	字典存num-index键值对(Go,Py)
20	15	3sum	双指针夹逼(Go,Py)
21	LCCI17	get-kth-magic-number-lcci	三指针(Go,Py), 小顶堆(Go,Py)
22	46	permutations	递归+回溯(Go,Py)
23	70	climbing-stairs	递推(Go,Py)
24	122	best-time-to-buy-and-sell-stock-ii	贪心(Go,Py)
25	860	lemonade-change	贪心(Go,Py)
26	200	numbers-of-islands	深度优先(Go,Py)
27	367	valid-perfect-square	二分查找(Go,Py)
28	169	majority-element	哈希表(Go,Py),计数投票(Go,Py)
29	127	word-ladder	广度优先(Go),双向广度优先(Go,Py)
30	1	two-sum	先排序后双指针夹逼(Go), 字典缓存差值的索引(Go,Py)
31	874	walking-robot-simulation	迭代(Go,Py)
32	53	maximum-subarray	迭代(Go,Py),分治(Go,Py)
33	1143	longest-common-subsequence	递归(Go,Py),动态规划(Go,Py),动态规划2(Go,Py)
34	74	search-a-2d-matrix	二分查找(Go,Py)
35	LCOF5	replace-space	新建一个buff(Go,Py)
36	64	minimum-path-sum	动态规划(Go,Py)
37	322	coin-change	递推(Go,Py),递归(Go,Py)
38	213	house-robber-ii	动态规划(Go,Py)
39	589	n-ary-tree-preorder-traversal	递归(Go,Py),栈(Go,Py)
40	363	max-sum-of-rectangle-no-larger-than-k	TODO
41	33	search-in-rotated-sorted-array	二分查找(Go,Py)
42	212	word-search-ii	前缀树+回溯(Go,Py)
43	74	search-a-2d-matrix	二分查找(Go,Py)
44	208	implement-trie-prefix-tree	前缀树(Go,Py)
45	200	numbers-of-islands	深度优先(Go,Py)
46	53	maximum-subarray	迭代(Go,Py),分治(Go,Py)
47	127	word-ladder	广度优先(Go),双向广度优先(Go,Py)
48	15	3sum	双指针夹逼(Go,Py)
49	91	decode-ways	动态规划(Go,Py)
50	547	friend-circles	深度优先(Go,Py),并查集(Go,Py)
51	367	valid-perfect-square	二分查找(Go,Py)
52	198	house-robber	动态规划(Go,Py)
53	190	reverse_bits	迭代(Go,Py),分治位运算(Go,Py)
54	24	swap-nodes-in-pairs	迭代(Go,Py), 递归(Go,Py)
55	1122	relative-sort-array	计数排序(Go,Py)
56	718	maximum-length-of-repeated-subarray	动态规划(Go,Py),滑动窗口(Go,Py)
57	387	first-unique-character-in-a-string	迭代(Go,Py)
58	62	unique-paths	动态规划(Go,Py)
59	541	reverse-string-ii	迭代(Go,Py)
60	300	longest-increasing-subsequence	动态规划(Go,Py),贪心+二分搜索(Go,Py)
61	15	3sum	双指针夹逼(Go,Py)
62	680	valid-palindrome-ii	双指针夹逼(Go,Py)
63	32	longest-valid-parentheses	动态规划(Go,Py),栈(Go,Py),贪心(Go,Py)
64	83	remove-duplicates-from-sorted-list	迭代(Go,Py)
65	120	triangle	动态规划(Go,Py)
66	127	word-ladder	广度优先(Go),双向广度优先(Go,Py)
67	46	permutations	递归(Go,Py)
68	122	best-time-to-buy-and-sell-stock-ii	贪心(Go,Py)
69	238	product-of-array-except-self	迭代(Go,Py)
70	239	sliding-window-maximum	单调递减队列(Go, Py)

题解