kandi X-RAY | Project-Euler Summary
kandi X-RAY | Project-Euler Summary
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Top functions reviewed by kandi - BETA
- Make a simple decorator .
- Convert a number to a spoken word .
- generates prime times
- Find the position of a pattern in text .
- Wrapper function for timedly
- Initialise the list .
- Return the next n characters
- Generate a sequence of strings
- Runs the program
- generate palendromes
Project-Euler Key Features
Project-Euler Examples and Code Snippets
Lines of Code : 19License : Permissive (MIT License)
Copydef solution(roman_numerals_filename: str = "/p089_roman.txt") -> int:
"""
Calculates and returns the answer to project euler problem 89.
>>> solution("/numeralcleanup_test.txt")
16
"""
savings = 0
file1 = o def all_solution_file_paths() -> list[pathlib.Path]:
"""Collects all the solution file path in the Project Euler directory"""
solution_file_paths = []
for problem_dir_path in PROJECT_EULER_DIR_PATH.iterdir():
if problem_dir_pat def test_project_euler(solution_path: pathlib.Path) -> None:
"""Testing for all Project Euler solutions"""
# problem_[extract this part] and pad it with zeroes for width 3
problem_number: str = solution_path.parent.name[8:].zfill(3)
Community Discussions
Trending Discussions on Project-Euler
QUESTION
https://www.freecodecamp.org/learn/coding-interview-prep/project-euler/problem-5-smallest-multiple
I am solving Project Euler and this is the solution I came up with for the 5th question. It passes the first 5 test cases but fails at the last one. smallestMult(20)
I believe it is happening because the number gets too big when n>=17. (it is working in the codesnippet here without a problem)
ANSWER
Answered 2021-Aug-08 at 15:07Your solution works however is less efficient. You can try this method:
QUESTION
So I designed this code (given below) for the question & it seems to be giving all the answers there are but for some reason I'm not able to pass my test cases in the Hackerrank Question except for the sample one.
My Code :
...ANSWER
Answered 2021-May-29 at 00:12You have three problems with this code:
- An actual bug. You don't handle when a prime divides the number multiple times. I'm fairly sure the four lines before the
printlnoutput are a workaround you put in when you encountered a failure this causes, that fixed the specific failure you found but don't actually address the root cause. I just tested it, your code outputs 3 for the input 252. The correct output for 252 is 7. - Part of your code invokes a library method that may be significantly expensive. You should not be using
isProbablePrime. - Your algorithm's logic scales poorly. Hackerrank's test cases probably include something where the correct output is something like 20 digits long. A major point of Project Euler is that it's not enough to write code that will find the correct answer. You need to write code that will find the correct answer efficiently. To fix this, you will need new logic for the fundamental design of the program.
QUESTION
I solving Problem 18 on Project Euler and have written the code for it as below:
...ANSWER
Answered 2021-Mar-21 at 12:52You are assuming that the optimal path will always move down via the child with the greatest value, but this is not true. A child with a lesser value may open up a possibility (at lower layers) to find a much greater value, which more than compensates for the temporary less optimal value.
So your algorithm, in its first iteration will go from 75 to the 95 on the second row. But this turns out to be the wrong choice. You'll have to come up with a better algorithm. You will find inspiration in other Q&A about this particular challenge, like this one.
Here you see the optimal path:
path 75 95 64 17 47 82 18 35 87 10 20 04 82 47 65 19 01 23 75 03 34 88 02 77 73 07 63 67 99 65 04 28 06 16 70 92 41 41 26 56 83 40 80 70 33 41 48 72 33 47 32 37 16 94 29 53 71 44 65 25 43 91 52 97 51 14 70 11 33 28 77 73 17 78 39 68 17 57 91 71 52 38 17 14 91 43 58 50 27 29 48 63 66 04 68 89 53 67 30 73 16 69 87 40 31 04 62 98 27 23 09 70 98 73 93 38 53 60 04 23QUESTION
Hello,
Question -- Problem 94, Project Euler -- Python -- Almost equilateral triangles
It is easily proved that no equilateral triangle exists with integral length sides and integral area. However, the almost equilateral triangle 5-5-6 has an area of 12 square units. We shall define an almost equilateral triangle to be a triangle for which two sides are equal and the third differs by no more than one unit. Find the sum of the perimeters of all almost equilateral triangles with integral side lengths and area and whose perimeters do not exceed one billion (1,000,000,000).
Output: 518408346
I have a very inneficient solution and it is as follows:
- I tried to bruteforce(it took a considerable amount of time)(using a for loop)
- Then I added in the condition to check whether it was a triangle(sum of two sides is greater than the third)
- Next, I defined the values in a perimeter variable and also used simple geometry for the area variable
- Next, to check whether they were valid, for the perimeter I used a type method to check whether it was int and since i couldn't do the same for area(since even if it was an integer, it would be part of the float class), I used modulo 1 == 0 to check if it was an integer
- If it satisfied the condition, i added it to my final 'sum of perimeter' variable. *The code is as follows: *
ANSWER
Answered 2020-Nov-21 at 09:19You could decide to use functions:
QUESTION
I was recently playing with problem 14 of the Euler project: which number in the range 1..1_000_000 produces the longest Collatz sequence?
I'm aware of the issue of having to memoize to get reasonable times, and the following piece of Python code returns an answer relatively quickly using that technique (memoize to a dict):
ANSWER
Answered 2020-Nov-16 at 03:56I think the majority of the extra time is because Raku has type checks, and they aren't getting removed by the runtime type specializer. Or if they are getting removed it is after a significant amount of time.
Generally the way to optimize Raku code is first to run it with the profiler:
QUESTION
I am going through a solution to the "Pyramid Slide Down" problem (https://www.mathblog.dk/project-euler-18/) and I need help understanding more intuitively the logic behind the solution for updating an index variable in the inner loop.
The algorithm:
...ANSWER
Answered 2020-Jul-01 at 04:22Here's how this algorithm works:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install Project-Euler
You can use Project-Euler like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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