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how to calculate binary search complexity
... search hence it is log(n) algorithm. Since I am not from a mathematics background I am not able to relate to it. Can somebody explain it in a little more detail? does it have to do something with the logarithmic series?
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Maximum single-sell profit
Suppose we are given an array of n integers representing stock prices on a single day. We want to find a pair (buyDay, sellDay) , with buyDay ≤ sellDay , such that if we bought the stock on buyDay and sold it on sellDay , we would maximize our profit.
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Calculate difference in keys contained in two Python dictionaries
...on dictionaries - dictA and dictB . I need to find out if there are any keys which are present in dictB but not in dictA . What is the fastest way to go about it?
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Encoding Javascript Object to Json string
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Unless the variable k is defined, that's probably what's causing your trouble. Something like this will do what you want:
var new_tweets = { };
new_tweets.k = { };
new_tweets.k.tweet_id = 98745521;
new_tweets.k.user_id = 54875;
new_tweets.k...
Determining complexity for recursive functions (Big O notation)
...and I need help determining the complexity of these recursive functions. I know how to solve simple cases, but I am still trying to learn how to solve these harder cases. These were just a few of the example problems that I could not figure out. Any help would be much appreciated and would greatly h...
Sort JavaScript object by key
I need to sort JavaScript objects by key.
31 Answers
31
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Python: how to print range a-z?
1. Print a-n: a b c d e f g h i j k l m n
17 Answers
17
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Array_merge versus + [duplicate]
...h associative arrays I get what I want, but when I use them with numerical key arrays the keys get changed.
2 Answers
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Enum type constraints in C# [duplicate]
...ints on Enum 's? I'm sure there is a method behind the madness, but I'd like to understand why it's not possible.
6 Answer...
How to use OpenSSL to encrypt/decrypt files?
... provide authenticated encryption and is vulnerable to padding oracle attacks. You should use something like age instead.
Encrypt:
openssl aes-256-cbc -a -salt -in secrets.txt -out secrets.txt.enc
Decrypt:
openssl aes-256-cbc -d -a -in secrets.txt.enc -out secrets.txt.new
More details on the...