序号编号题目题解通过率难度出现频率
11两数之和134447.5%简单2.1889341122
25最长回文子串46128.4%中等2.0203083813
3149直线上最多的点数4720.4%困难2.0141849897
4146LRU缓存机制11945.4%中等1.9674998373
5206反转链表37766.9%简单1.9520710999
6269火星词典2039.6%困难1.9021942002
74寻找两个有序数组的中位数50236.7%困难1.8946257527
83无重复字符的最长子串101332.8%中等1.8849896566
942接雨水26148.4%困难1.8281795578
102两数相加108336.6%中等1.7696470743
1153最大子序和43949.0%简单1.5319351236
1215三数之和39925.4%中等1.5285146455
13179最大数8335.2%中等1.5213543589
1423合并K个排序链表27048.7%困难1.4721839925
1521合并两个有序链表43259.5%简单1.4564985646
1646全排列30573.9%中等1.4501271613
17322零钱兑换12237.4%中等1.4309076858
1854螺旋矩阵21638.5%中等1.4287450495
19300最长上升子序列11843.9%中等1.4269760533
20124二叉树中的最大路径和10939.1%困难1.3908085092
21148排序链表13663.7%中等1.3391574056
2270爬楼梯39947.8%简单1.2952453493
23218天际线问题3540.2%困难1.2940165218
2420有效的括号75240.8%简单1.2718832433
25378有序矩阵中第K小的元素5957.9%中等1.2697081508
26200岛屿数量19146.9%中等1.2668480289
2711盛最多水的容器40461.1%中等1.2651527579
28253会议室 II4840.9%中等1.2378825693
2976最小覆盖子串8735.3%困难1.1898471973
3010正则表达式匹配21326.0%困难1.1896164059
31329矩阵中的最长递增路径2939.6%困难1.1847089541
3288合并两个有序数组38646.5%简单1.1814325538
3391解码方法16923.0%中等1.1462227527
347整数反转79933.6%简单1.13986536
35215数组中的第K个最大元素22960.9%中等1.1336727864
36279完全平方数11553.4%中等1.1324844986
37121买卖股票的最佳时机32352.3%简单1.0897958603
3819删除链表的倒数第N个节点48437.4%中等1.0896915712
3944通配符匹配7526.4%困难1.0735219239
40315计算右侧小于当前元素的个数6737.2%困难1.0705935498
4194二叉树的中序遍历20570.0%中等1.0668499283
4222括号生成36073.2%中等1.0368498015
4333搜索旋转排序数组27836.3%中等1.031769043
44202快乐数16657.1%简单1.0310573519
4556合并区间21740.2%中等0.9987467431
46227基本计算器 II5234.7%中等0.9787860006
47239滑动窗口最大值14243.7%困难0.9639844096
4817电话号码的字母组合43152.4%中等0.9622934701
49308二维区域和检索 - 可变1555.4%困难0.948572222
50128最长连续序列8347.6%困难0.9398070789
5141缺失的第一个正数21937.5%困难0.9380478031
52289生命游戏7268.5%中等0.9357757327
53240搜索二维矩阵 II6638.7%中等0.9225777056
54152乘积最大子序列10737.0%中等0.9187712368
5578子集21376.3%中等0.9177142784
56384打乱数组2749.3%中等0.9145202935
578字符串转换整数 (atoi)47019.0%中等0.9029406695
5855跳跃游戏25238.0%中等0.8958983408
5948旋转图像24866.7%中等0.894511925
60212单词搜索 II4639.1%困难0.8899547869
61138复制带随机指针的链表6643.6%中等0.8865889053
6284柱状图中最大的矩形10838.7%困难0.8864621548
63140单词拆分 II5537.7%困难0.8829744014
6479单词搜索12440.4%中等0.8723631315
65102二叉树的层次遍历24560.7%中等0.8706425694
6662不同路径24558.7%中等0.8593398028
67103二叉树的锯齿形层次遍历18253.4%中等0.8589454902
68287寻找重复数11662.8%中等0.8513433097
69104二叉树的最大深度31772.1%简单0.8451670423
70204计数质数7332.1%简单0.8406553438
71454四数相加 II5254.1%中等0.8363504395
72395至少有K个重复字符的最长子串2841.4%中等0.8303010583
73105从前序与中序遍历序列构造二叉树12463.9%中等0.819656681
74236二叉树的最近公共祖先10759.7%中等0.8093212366
75234回文链表24840.2%简单0.8088869638
76208实现 Trie (前缀树)9764.3%中等0.7853247832
77139单词拆分11243.1%中等0.7832757775
78101对称二叉树26349.9%简单0.7800227391
79141环形链表28546.1%简单0.7752874285
80198打家劫舍28342.8%简单0.7744855371
81162寻找峰值8544.3%中等0.7696853019
82155最小栈22351.4%简单0.7685914236
8314最长公共前缀53436.1%简单0.7530761765
84131分割回文串7165.1%中等0.7510673929
85136只出现一次的数字29265.1%简单0.7349525414
8650Pow(x, n)14133.8%中等0.718062288
87251展开二维向量1451.2%中等0.7064494978
8813罗马数字转整数68960.6%简单0.7036946115
89118杨辉三角24965.6%简单0.6967394169
90295数据流的中位数4942.0%困难0.6946945962
91344反转字符串27468.9%简单0.6946453724
9228实现 strStr()43039.5%简单0.677526337
93134加油站8450.8%中等0.6680034353
94160相交链表22352.1%简单0.6586581012
9538外观数列43354.4%简单0.6578467064
96169多数元素25861.5%简单0.6565892281
9726删除排序数组中的重复项66548.4%简单0.6550995136
98350两个数组的交集 II17746.4%简单0.6426060637
99130被围绕的区域8539.0%中等0.6379941028
100122买卖股票的最佳时机 II29457.3%简单0.6288237558
101297二叉树的序列化与反序列化6844.2%困难0.6161181212
102283移动零39659.2%简单0.6027003195
103341扁平化嵌套列表迭代器2962.0%中等0.5938570472
104238除自身以外数组的乘积7266.0%中等0.5937264588
105108将有序数组转换为二叉搜索树15669.0%简单0.5894712826
106371两整数之和6353.6%简单0.5818588839
10769x 的平方根22737.5%简单0.5773355857
10836有效的数独15358.2%中等0.561402821
109189旋转数组21440.3%简单0.5566099514
110210课程表 II6146.1%中等0.5545283931
11134在排序数组中查找元素的第一个和最后一个位置32638.9%中等0.548822282
112230二叉搜索树中第K小的元素13068.4%中等0.5317398267
113237删除链表中的节点17279.8%简单0.5275103075
11475颜色分类20154.5%中等0.524817177
115334递增的三元子序列4736.7%中等0.5213577147
116347前 K 个高频元素12160.1%中等0.5172799817
117207课程表9549.1%中等0.5169124974
118125验证回文串25142.3%简单0.5111401047
11929两数相除17919.2%中等0.485880607
12049字母异位词分组13860.6%中等0.4814697492
121348判定井字棋胜负2456.4%中等0.4810727899
122328奇偶链表9961.1%中等0.4710560039
12398验证二叉搜索树21228.8%中等0.4507564616
124340至多包含 K 个不同字符的最长子串2746.2%困难0.4458245212
125150逆波兰表达式求值9449.0%中等0.4446041456
126277搜寻名人2357.8%中等0.443794311
127268缺失数字15354.0%简单0.440247858
128387字符串中的第一个唯一字符14143.1%简单0.4306744837
129172阶乘后的零8739.6%简单0.4295218725
130171Excel表列序号12666.5%简单0.4216217772
131127单词接龙5539.5%中等0.410694615
132166分数到小数4525.6%中等0.3941951959
133324摆动排序 II2834.7%中等0.3823684465
134242有效的字母异位词17058.3%简单0.3821690831
135163缺失的区间3024.1%中等0.3755130675
136217存在重复元素19051.5%简单0.3645335661
13773矩阵置零8055.0%中等0.3017800362
138380常数时间插入、删除和获取随机元素3447.7%中等0.28563882
139116填充每个节点的下一个右侧节点指针7953.5%中等0.2710111625
14066加一48942.9%简单0.267108547
1413263的幂5446.4%简单0.2212253692
142412Fizz Buzz7762.6%简单0.1953161817
143190颠倒二进制位9754.6%简单0.1952510744
144191位1的个数11464.1%简单0.1419866715
145285二叉搜索树中的顺序后继2259.8%中等0