| LeetCode Question Difficulty Distribution : Sheet1 |
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ID | Question | Diff | Freq | Data Structure | Algorithms | |
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1 | Two Sum | 2 | 5 | array | sort | ||
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set | Two Pointers | ||||||
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2 | Add Two Numbers | 3 | 4 | linked list | Two Pointers | ||
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Math | |||||||
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3 | Longest Substring Without Repeating Characters | 3 | 2 | string | Two Pointers | ||
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hashtable | |||||||
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4 | Median of Two Sorted Arrays | 5 | 3 | array | Binary Search | ||
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5 | Longest Palindromic Substring | 4 | 2 | string | |||
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6 | ZigZag Conversion | 3 | 1 | string | |||
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7 | Reverse Integer | 2 | 3 | Math | |||
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8 | String to Integer (atoi) | 2 | 5 | string | Math | ||
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9 | Palindrome Number | 2 | 2 | Math | |||
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10 | Regular Expression Matching | 5 | 3 | string | Recursion | ||
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DP | |||||||
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11 | Container With Most Water | 3 | 2 | array | Two Pointers | ||
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12 | Integer to Roman | 3 | 4 | Math | |||
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13 | Roman to Integer | 2 | 4 | Math | |||
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14 | Longest Common Prefix | 2 | 1 | string | |||
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15 | 3Sum | 3 | 5 | array | Two Pointers | ||
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16 | 3Sum Closest | 3 | 1 | array | Two Pointers | ||
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17 | Letter Combinations of a Phone Number | 3 | 3 | string | DFS | ||
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18 | 4Sum | 3 | 2 | array |
作者: ambrosia
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