而我主要还是用最一般的写法,参考了网上另一篇博文 (http://yucoding.blogspot.com/2013/05/leetcode-question-118-valid-number.html),处理各种情况。 首先,从题目中给的一些例子可以分析出来,我们所需要关注的除了数字以外的特殊字符有空格 ‘’, 小数点 '.', 自然数 'e/E', 还要加上正负号 '+/-", 除...
题目: Write an algorithm to determine if a number is "happy". A happy number is a number defined by the following process: Starting with any positive integer, replace the number by the sum of the squares of its digits, and repeat the process until the number equals 1 (where it will st...
3915 -- 9:29 App LeetCode 920. Number of Music Playlists 186 -- 10:33 App [English] LeetCode 233. Number of Digit One 399 -- 12:49 App LeetCode 1074. Number of Submatrices That Sum to Target 1329 8 10:24 App LeetCode 15. 3Sum 中文解释 625 -- 8:29 App LeetCode #679...
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Input: sentences = ["alice and bob love leetcode", "i think so too", "this is great thanks very much"]Output: 6Explanation: - The first sentence, "alice and bob love leetcode", has 5 words in total. - The second sentence, "i think so too", has 4 words in total. - The thir...
package leetcode func numberOfBoomerangs(points [][]int) int { res := 0 for i := 0; i < len(points); i++ { record := make(map[int]int, len(points)) for j := 0; j < len(points); j++ { if j != i { record[dis(points[i], points[j])]++ } } for _, r := ra...
| [0189-rotate-array](https://github.com/SusmoyNath/leetcode-codes/tree/master/0189-rotate-array) | | [2802-find-the-punishment-number-of-an-integer](https://github.com/SusmoyNath/leetcode-codes/tree/master/2802-find-the-punishment-number-of-an-integer) | ## Recursion @@ -89,6 +90...
[leetcode] 1525. Number of Good Ways to Split a String Description You are given a string s, a split is called good if you can split s into 2 non-empty strings p and q where its concatenation is equal to s and the number of distinct letters in p and q are the same....
Leetcode: Number of Segments in a String Count the number of segments in a string, where a segment is defined to be a contiguous sequence of non-space characters. Please note that the string does not contain any non-printable characters....
Number info: 0x1010 Conversion Decimal 4112 Binary 1000000010000 Hexadecimal 0x1010 Dotted decimal 0.0.16.16 MathSquare root of 16908544 Factors 257 2 2 2 2 Miscellaneous English four thousand one hun...Single Number Single Number question: 要求我们找到peak,就是比两边都大的元素 首先找到中间结点mid...