03 2019 档案

Lintcode9-Fizz Buzz-Easy
摘要：Fizz Buzz Given number n. Print number from 1 to n. But: when number is divided by 3, print "fizz". when number is divided by 5, print "buzz". when nu 阅读全文
posted @ 2019-03-31 18:13 IreneZh 阅读(144) 评论(0) 推荐(0)
Lintcode27-Reverse 3-digit Integer
摘要：Reverse a 3-digit integer. Reverse a 3-digit integer. Example Example 1: Input: number = 123 Output: 321 Example 2: Input: number = 900 Output: 9 Exam 阅读全文
posted @ 2019-03-31 17:17 IreneZh 阅读(189) 评论(0) 推荐(0)
Leetcode167-Two Sum II Input array is sorted-Easy
摘要：Given an array of integers that is already sorted in ascending order, find two numbers such that they add up to a specific target number. The function 阅读全文
posted @ 2019-03-30 17:02 IreneZh 阅读(135) 评论(0) 推荐(0)
Leetcode122-Best Time to Buy and Sell Stock II-Easy
摘要：Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may comple 阅读全文
posted @ 2019-03-30 16:33 IreneZh 阅读(120) 评论(0) 推荐(0)
Leetcode121-Best Time to Buy and Sell Stock I - Easy
摘要：I Say you have an array for which the ith element is the price of a given stock on day i. If you were only permitted to complete at most one transacti 阅读全文
posted @ 2019-03-30 14:47 IreneZh 阅读(124) 评论(0) 推荐(0)
Leetcode118_Pascal's Triangle_Easy
摘要：Given a non-negative integer numRows, generate the first numRows of Pascal's triangle. In Pascal's triangle, each number is the sum of the two numbers 阅读全文
posted @ 2019-03-30 13:57 IreneZh 阅读(117) 评论(0) 推荐(0)
Leetcode88_Merge Sorted Array_Easy
摘要：Given two sorted integer arrays nums1 and nums2, merge nums2 into nums1 as one sorted array. Note: The number of elements initialized in nums1 and num 阅读全文
posted @ 2019-03-30 12:11 IreneZh 阅读(73) 评论(0) 推荐(0)
Leetcode66-Plus One-Eassy
摘要：Given a non-empty array of digits representing a non-negative integer, plus one to the integer. The digits are stored such that the most significant d 阅读全文
posted @ 2019-03-28 13:26 IreneZh 阅读(115) 评论(0) 推荐(0)
String 类
摘要：// 方便自己看，代码非常不规范，请勿参考. http://www.runoob.com/java/java-string.html 阅读全文
posted @ 2019-03-25 18:56 IreneZh 阅读(148) 评论(0) 推荐(0)
Leetcode_Easy_14
摘要：编写一个函数来查找字符串数组中的最长公共前缀。 如果不存在公共前缀，返回空字符串 ""。 知识点1： 方法：String.indexOf(String） while (strs[i]. indexOf(prefix) != 0) {...} 这个循环用来比较两个字符串，直到找到完全相同的前缀（因为p 阅读全文
posted @ 2019-03-20 15:30 IreneZh 阅读(150) 评论(0) 推荐(0)
Python: 字典应用题
摘要：Write a program to read through the mbox-short.txt and figure out who has sent the greatest number of mail messages. The program looks for 'From ' lin 阅读全文
posted @ 2019-03-03 23:06 IreneZh