刷题记录帖

Today's take:
1 attend the meeting with ventoven.
BQ.
make sure we are at the same level. clarify the misunderstanding. respond on time.
understand issue and come up with solution.

bamboo：
is a continuous integration server thst csn be used to automate the release management for software application, creating a continuous delivery pipeline.
build process: compile-run unit testss- run integration tests-package.

https://www.softwaretestinghelp.com/system-testing/
http://www.qatutorial.com/Automation_Framework
Exploratory tetsing.

automation testing:
what iis that? advantage of it.

limitation of automation testing

manual testing: use tool.

https://yangshun.github.io/tech- ... avioral-questions#!
https://yangshun.github.io/tech- ... k/questions-to-ask/

https://yangshun.github.io/tech- ... k/questions-to-ask/

Array:
121. Best Time to Buy and Sell Stock
1. brute force
2. dp. thinking process.
3.transform to maximum subarray

53. Maximum Subarray
thinking process
238. Product of Array Except Self
similar to above questions

54. Spiral Matrix
448. Find All Numbers Disappeared in an Array
hashmap/
https://leetcode.com/problems/fi ... ted-simple-solution
new idea.
560. Subarray Sum Equals K
study it!!!

283. Move Zeroes
11. Container With Most Water
66. Plus One
128. Longest Consecutive Sequence
75. Sort Colors
280. Wiggle Sort
228. Summary Ranges

binary search
162. Find Peak Element
57. Insert Interval


SLIDING WINDOW:
我记得有模板的。
3. Longest Substring Without Repeating Characters


31. Next Permutation
289. Game of Life
没有做

208. Implement Trie (Prefix Tree)
a new data structure.

anagram:
sort.
hashmap to count

palindrome:
reverse and see if they are same
two pointer

corner case
empty string
string with 1 or 2 characters
with repeated characters??
with only one distinct character
54. Spiral Matrix??
yun/ too many detail/ not very sure. study again
283. Move Zeroes
two ponter
code improvement.
75. Sort Colors
similiar
280. Wiggle Sort
approach 2 study it
approach 1 practice it

Difference between concat() and + operator in Java
https://www.geeksforgeeks.org/di ... d-operator-in-java/
228. Summary Ranges
binary search
162. Find Peak Element
57. Insert Interval
       
Search a 2D Matrix II
Kth Smallest Element in a BST
50. Pow(x, n)
Peak Index in a Mountain Array


his is called the Search Space. Binary Search maintains the left, right, and middle indicies of the search space and compares the search target or applies the search condition to the middle value of the collection; if the condition is unsatisfied or values unequal, the half in which the target cannot lie is eliminated and the search continues on the remaining half until it is successful.

1011. Capacity To Ship Packages Within D Days
boundry value 的选择。
875. Koko Eating Bananas
69. Sqrt(x)
33. Search in Rotated Sorted Array!!white board it.
374. Guess Number Higher or Lower

sort

not in place
merge sort

sort efficiency
run time or execution time

basic operation in sorting - comparision and record movement.
time somplexity depend on initial data

sort stability
stable sort : preserves the relative order of the duplicate keys in the sorted output

Selection sort:
not data sensitive
less data movement
process.
O(n^2)
inplace
unstable

bubble sort:
process
O(n^2)
data sensitive
in place
unstable
improvement: record swap each swap and if swap == 0, then stop

insertion sort
data sensitive
O(n^2)
stable
inplace

merge sort
recursive method
quick sort
pivot / recursively use this technique



test plan examplre
leadership

interview today

rest today start tomorrow

interview question

1 what is the creteria that you think the product is ready to ship?
2 what do you define quality?
3 What is the release frequency?

what I learned from interview.

1 show your passion:
why do you choose this compay?
what is the product that interested you?
why do you like QA?


2have some concrete examples
5 why example
practice in front of camera.

3 keep on working with leetcode
be more flexible
do more with string.
刷题总结

practice to be more emotion mature