Questions tagged [iteration]
Iteration is the repetition of a block of statements within a computer program, usually with mutable state.
264
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Calculate the base 10 log with loops in Java without using Math
I'm looking for a simple way to calculate the logarithm without using java.lang.Math, just out of interest.
Here's my try (I adopted some code parts from this ...
- 522
2
votes
2
answers
347
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Another cash machine with special bill values in Java
Task:
An ATM dispenses banknotes with the following values/denominations: {5, 30, 35, 40, 150, 200}. The user should be able to repeatedly enter an amount divisible by 5 without leaving a remainder. ...
- 522
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vote
1
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Code that performs 2500 simulations by running a regression after randomly assigning 10 friends to each observation in a data took 20 days to run
I am running the following code to conduct a simulation. I have a dataset of around 100K observations. The simulation does the following:
It randomly assign 10 "friends" to each observation
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1
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0
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Electro-thermal simulation
I'm working on an electro-thermal simulation with variable parameters.
Model require the calculation of all the electrical and thermal quantities at each time step, between a starting and ending time. ...
- 21
5
votes
1
answer
1k
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Determine if it is EU summer time in Java
I wanted to write a utility method for learning purposes to determine if a given date (year, month and day) falls within EU summer time or not, without using any of the Java library methods. Is here ...
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1
answer
91
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Shrink an array of double elements (uniformly)
Is there a way to avoid the first loop in the method shrink? (if and while...)
The utility ...
- 522
5
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2
answers
773
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3
votes
1
answer
1k
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Knock down tall buildings
I'm trying to solve the following problem:
As you know Bob likes to destroy the buildings.
There are N buildings in a city, ith building has ai floors.
Bob can do the following operation.
Choose a ...
- 232
1
vote
1
answer
75
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Increment sequence value for multiple styles
I've found several examples of code to increment various sequence values but they are usually specific to either alpha characters or numeric characters. I wanted something that could increment a ...
- 155
2
votes
2
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187
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Increasing writing speed to file inside a for-loop for large files
I have a .csv file containing 100 millions records, I would to create multiple files from this file, after certain condition satisfied in each line, I came to this code below, but it is slow, I think, ...
- 309
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2
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226
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Count the number of mismatches between two arrays [closed]
This function may compute the amount of unequal elements of two char-arrays of the length n:
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- 147
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votes
1
answer
2k
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std::ranges zip view to iterate over two equal size ranges at the same time
Since c++20 std::ranges doesn't have a zip view like range-v3 does, I am working on implementing a basic version of such a zip view to iterate over two ranges at the same time. The ranges should be ...
- 123
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votes
1
answer
140
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Readlines abstraction for Golang
I've just started learning Golang and was solving some problems which required me to read lines of text from a file. I decided to abstract away the reading part so that I can use Go's ...
- 1,499
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2
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Create a random list of values with corresponding tokens
I have this code that uses loops and random generators to create a random list of values (operators, strings, integers, floats, and new lines) and a corresponding list of the correct tokens to test a ...
- 111
0
votes
1
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48
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Grouping countries and years
Here is an input array that contains country name, year and value. I need to group values by country and years.
I use this approach that works for me, but I wonder how to optimize it:
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