LeetCode

外网卡炸了，还是回中国站做题 加入了提交时的内存和耗时(并没什么实质性作用，同样的代码内存从68%-99%都有，相对来说还是耗时比较稳定)

Algorithms

#	Title	Solutions	Difficulty	Tag	Time	Memory
1	two sum	Solution	Easy	Hash
2	add two numbers	Solution	Medium	Math
1	两数之和	Solution	Easy	Hash	66.1%	26.47%
2	两数相加(递归)	Solution	Medium	Math	8.8%	5.26%
2	两数相加(迭代)	Solution	Medium	Design	99.86%	92.22%
3	无重复字符的最长子串	Solution	Medium	Sliding Window	98.48%	68.71%
3	无重复字符的最长子串	Solution	Medium	Two Points	75.6%	69.8%
类似	30、76	159	209	239、340	567	632、727
4	寻找两个正序数组的中位数	Solution	Hard	Merge	97.04%	98.88%
5	最长回文子串	Solution	Medium	String	90.87%	64.33%[马拉车算法可优化]
6	Z 字形变换	Solution	Medium	Design	94.16%	96.99%
7	整数反转	Solution	Easy	Design	100%	94.37%
8	字符串转换整数	Solution	Medium	Design	74.4%	94.53%
9	回文数	Solution	Easy	Design	77.38%	94%
10	正则表达式匹配	Solution	Hard	Dynamic Programming		(回头继续研究)
11	盛最多水的容器	Solution	Medium	Two Points	97.41%	96.32%(回头看数学证明题解)
12	整数转罗马数字	Solution	Medium	String	75.77%	96.65%
13	罗马数字转整数	Solution	Easy	String	56.48%	49.23%
14	最长公共前缀	Solution	Easy	String	90.59%	86.24%
15	三数之和	Solution	Medium	Two Points	73.47%	86.32%
17	电话号码的字母组合	Solution	Medium	Backtracking	100%	86.83%
19	删除链表的倒数第N个结点	Solution	Medium	Two Points	78.78%	83.67%
20	有效的括号	Solution	Easy	Stack
21	合并两个有序链表	Solution	Easy	Linked	49.83%	5.04%
22	括号生成	Solution	Medium	DFS	100%	31.01%
26	删除有序数组中的重复项	Solution	Easy	Two Pointers	51.75%	32.2%
28	实现StrStr	Solution	Easy	KMP	90.44%	11.81%
31	下一个排列	Solution	Medium	Array	74.89%	38.24%
33	搜索旋转排序数组	Solution	Medium	Binary Search	20.52%	82.63%
34	在排序数组中查找元素的第一个和最后一个位置	Solution	Medium	Binary Search	94.7%	59.26%
36	有效的数独	Solution	Mediunm	Hash Table	78.95%	94.59%
37	组合总和	Solution	Medium	Back Tracking	94.48%	39.75%
38	外观数列	Solution	Medium	String	77.59%	63.56%
41	缺失的第一个正数	Solution	Hard	Array	82.62%	22.48%
46	全排列	Solution	Medium	Back Tracking	70.95%	69.95%
48	旋转图像	Solution	Medium	Array	46.51%	91.31%
49	字母异位词分组	Solution	Medium	Hash	91.09%	11.42%
53	最大子序和	Solution	Easy	Dynamic Programming	67.52%	26.01%
53	最大子序和	Solution	Easy	Divide And Conquer	29.71%	49.08%
54	螺旋矩阵	Solution	Medium	Array	100%	91.77%
55	跳跃游戏	Solution	Medium	Array	14.7%	22.57%
56	合并区间	Solution	Medium	Array	25.87%	16.51%
62	不同路径(Math)	Solution	Medium	Math	100%	58.03%
62	不同路径(DP)	Solution	Medium	Dynamic Programming	100%	35.13%
64	最小路径和	Solution	Medium	Dynamic Programming	20.85%	53.76%
66	加一	Solution	Easy	Array	41.12%	75.69%
70	爬楼梯	Solution	Easy	Dynamic Programming	100%	59.85%
73	矩阵置零	Solution	Medium	Array	95.89%	64.37%
75	颜色分类	Solution	Medium	Tow Points	100%	82.18%
78	子集	Solution	Medium	Array	100%	67.5%
79	单词搜索	Solution	Medium	DFS	45.43%	92.45%
88	合并两个有序数组	Solution	Easy	Array	45.71%	98.09%
91	解码方法	Solution	Medium	Dynamic Programming	100%	54.12%
92	反转链表 II	Solution	Medium	Linked	51.4%	30.73%
94	二叉树的中序遍历(递归)	Solution	Easy	Recursion	100%	84.9%
94	二叉树的中序遍历(迭代)	Solution	Easy	Stack	100%	18.46%
96	不同的二叉搜索树	Solution	Medium	Dynamic Programming	100%	39.83%
98	验证二叉搜索树	Solution	Medium	Tree	6.62%	5.08%
101	对称二叉树(递归)	Solution	Easy	Recursion	85.92%	56.02%
102	二叉树的层序遍历	Solution	Medium	Breadth First Search	100%	47.05%
104	二叉树的最大深度	Solution	Easy	Recursion	100%	70.88%
105	从前序与中序遍历序列构造二叉树	Solution	Medium	Tree	97.32%	55.3%
114	二叉树展开为链表	Solution	Medium	Tree	85.79%	69.68%
118	杨辉三角	Solution	Easy	Array	100%	48.84%
121	买卖股票的最佳时机	Solution	Easy	Array	30.07%	92.48%
128	最长连续序列	Solution	Medium	Array	53.36%	78.43%
131	分割回文串	Solution	Medium	Backtracking	54.36%	66.22%
136	只出现一次的数字	Solution	Easy	Bit Operation	70.44%	60.3%
141	环形链表	Solution	Easy	Two Points	65.52%	80.08%
142	环形链表 II	Solution	Medium	Two Points	66.4%	96.1%
155	最小栈	Solution	Easy	Stack	80.86%	56.29%
160	相交链表	Solution	Easy	Linked	92.11%	73.54%
162	寻找峰值	Solution	Medium	Binary Search	100%	33.2%
169	多数元素	Solution	Easy	Array	97.32%	16.03%
190	颠倒二进制位	Solution	Easy	Bit Operation	100%	33.19%
191	位1的个数	Solution	Easy	Bit Operation	100%	44.53%
202	快乐数	Solution	Easy	Hash Table	45.61%	71.18%
206	反转链表	Solution	Easy	Linked	63.03%	96.93%
215	数组中的第k个最大元素	Solution	Medium	Quick Select	72.76%	87.27%
217	存在重复元素	Solution	Easy	Hash	59.11%	43.49%
226	翻转二叉树	Solution	Easy	Tree	100%	42.18%
231	2的幂	Solution	Easy	Bit Operation	42.86%	99.3%
234	回文链表	Soultion	Easy	Linked	50.64%	59.63%
236	二叉树的最近公共祖先	Solution	Medium	Tree	99.56%	80.64%
238	除自身以外数组的乘积	Solution	Medium	Array	73.7%	72.4%
258	各位相加	Solution	Easy	Math	46.5%	95.06%
279	完全平方数	Solution	Medium	Math	100%	99.41%
283	移动零	Solution	Easy	Array	67.99%	5.16%
287	寻找重复数	Solution	Medium	Two Points	61.26%	73.71%
290	单词规律	Solution	Easy	Hash	100%	31.82%
338	比特位计数	Solution	Easy	Bit Operation	93.2%	42.07%
344	反转字符串	Solution	Easy	String	19.19%	98.46%
347	前K个高频元素	Solution	Medium	Hash Table	48.75%	45.28%
438	找到字符串中所有字母异位词	Solution	Medium	Hash	60.73%	59.52%
442	数组中重复的数据	Soultion	Medium	Array	45.92%	52.45%
448	找到所有数组中消失的数字	Solution	Easy	Array	69.99%	53.45%
461	汉明距离	Solution	Easy	Bit Operation	100%	25.07%
501	二叉搜索树中的众数	Solution	Easy	Tree	5.26%	5.12%可优化
538	把二叉搜索数转换为累加树(原始)	Solution	Easy	Tree
538	把二叉搜索数转换为累加树	Solution	Medium	Tree	90.4%	20.15%
543	二叉树的直径	Solution	Easy	Tree	77.78%	48.47%
617	合并二叉树	Solution	Easy	Tree	81.06%	99.21%
647	回文子串	Solution	Medium	String	100%	93.97%
711	宝石与石头	Solution	Easy	Tree	67.3%	72.53%
739	每日温度	Solution	Medium	Stack	36.15%	83.36%
860	柠檬水找零	Solution	Easy	Design	93.4%	22.45%
861	翻转矩阵后的得分	Solution	Medium	Array	100%	22.99%
1603	设计停车系统	Solution	Easy	Simulation	33.51%	76.7%