題目:
列出在各部門薪水最高的名單。
The Employee table holds all employees. Every employee has an Id, a salary, and there is also a column for the department Id.
Employee
+----+-------+--------+…
給定一個string s 求最後一個詞有幾個字元。
Given a string s consists of some words separated by spaces, return the length of the last word in the string. If the last word does not exist, return 0.
s
0
從一開始第一行的一,數上面有幾個 的什麼數字,用數字表達說出來的話。說明:
111:一個一21:兩個一1211:一個二 一個一111221:一個一 一個二 兩個一
給一個array nums 找出連續數字相加有最大的總和,並回傳那個最大的總和。
Example 1:
Input: nums = [-2,1,-3,4,-1,2,1,-5,4]Output: 6Explanation: [4,-1,2,1] has the largest sum = 6.
給兩個表,一個顧客名子,一個有買東西的顧客的名單,接著求列出沒買東西的人的名單。
Table: Customers.
Customers
+----+-------+| Id | Name |+----+-------+| 1 | Joe || 2 | Henry || 3 | Sam || 4 | Max |…
給定一個array nums,跟一個target,如果target有在nums裡面,回傳target在nums裡面的位置,如果target沒有在nums裡,依照大小插入,並回傳插入nums時的位置。
Given a sorted array of distinct integers and a target value, return the index if the target is found. If not…
給一個nums list, 再給一個val值
去除nums裡面等於val的值,並回傳剩餘list長度。
Input: nums = [3,2,2,3], val = 3Output: 2, nums = [2,2]Explanation: Your function should return length = 2…
給一個str haystack,跟一個needle 回傳當到haystack的第幾位時,出現needle。
Return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.
-1
needle
haystack
題目: 去掉重複數字,回傳不重複數字長度,input default從低至高,回傳時input已去掉重複數字。
Input: nums = [1,1,2]Output: 2, nums = [1,2]Explanation: Your function should return length = 2, with the first two elements…
2