ProjectEuler | My project Euler solutions | Learning library

 by   abdullah768 Python Version: Current License: No License

kandi X-RAY | ProjectEuler Summary

kandi X-RAY | ProjectEuler Summary

ProjectEuler is a Python library typically used in Tutorial, Learning applications. ProjectEuler has no bugs, it has no vulnerabilities and it has low support. However ProjectEuler build file is not available. You can download it from GitHub.

My project Euler solutions.
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              ProjectEuler has a low active ecosystem.
              It has 9 star(s) with 4 fork(s). There are no watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              ProjectEuler has no issues reported. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of ProjectEuler is current.

            kandi-Quality Quality

              ProjectEuler has 0 bugs and 0 code smells.

            kandi-Security Security

              ProjectEuler has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              ProjectEuler code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              ProjectEuler does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
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              Without a license, all rights are reserved, and you cannot use the library in your applications.

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              ProjectEuler releases are not available. You will need to build from source code and install.
              ProjectEuler has no build file. You will be need to create the build yourself to build the component from source.
              ProjectEuler saves you 360 person hours of effort in developing the same functionality from scratch.
              It has 861 lines of code, 9 functions and 46 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed ProjectEuler and discovered the below as its top functions. This is intended to give you an instant insight into ProjectEuler implemented functionality, and help decide if they suit your requirements.
            • This function is called when a function is called
            • Calculates the probability density function
            • Pls a function
            • Calculate the callee function
            • Pan a numeric value
            • The number of ways between two nodes
            Get all kandi verified functions for this library.

            ProjectEuler Key Features

            No Key Features are available at this moment for ProjectEuler.

            ProjectEuler Examples and Code Snippets

            No Code Snippets are available at this moment for ProjectEuler.

            Community Discussions

            QUESTION

            f# concatenate list of objects
            Asked 2021-Jun-06 at 07:55
            type Googol = {
                number : float
                power : float
                result : float
            }
            
            let generatePowers (n:float) : list = 
                let rec powerInner (n:float) (p:float) (acc : list) = 
                    match n with
                    | p when p <= 1.0 -> acc
                    | p when p > 1.0 -> powerInner n (p-1.0) ([{ number=n; power=p; result=n**p}]@acc)
                let rec numberInner (n:float) (acc : list) = 
                    match n with 
                    | n when n <=1.0 -> acc
                    | n when n >1.0 -> numberInner (n-1.0) ((powerInner n [])@acc)
                numberInner n []
            
            ProjectEuler.fsx(311,50): error FS0001: This expression was expected to have type
                'Googol list'
            but here has type
                'Googol list -> Googol list'
            
            ...

            ANSWER

            Answered 2021-Jun-05 at 23:19

            You're missing a parameter here:

            Source https://stackoverflow.com/questions/67853482

            QUESTION

            Why does reduce operator does not work the way I expect it to?
            Asked 2021-Jun-05 at 22:42

            I am trying to solve Euler 18 in Dyalog APL, and I am not able to understand why my solution does not work.

            The problem is as follow:

            By starting at the top of the triangle below and moving to adjacent numbers on the row below, the maximum total from top to bottom is 23.

            ...

            ANSWER

            Answered 2021-Jun-05 at 15:07

            / works in the reverse way to what you expected - it evaluates through the array right-to-left.

            F/a b c d is ⊂a F b F c F d, or, with parentheses, ⊂(a F (b F (c F d))).

            After removing the and swapping and , you get {⍺+(2⌈/⍵),0}/d, which gives the result you want.

            Source https://stackoverflow.com/questions/67844794

            QUESTION

            Got stuck at Project Euler's question 3 i.e. finding the largest prime factor of a given number. Please see details
            Asked 2021-May-29 at 03:05

            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 00:12

            You have three problems with this code:

            1. An actual bug. You don't handle when a prime divides the number multiple times. I'm fairly sure the four lines before the println output 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.
            2. Part of your code invokes a library method that may be significantly expensive. You should not be using isProbablePrime.
            3. 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.

            Source https://stackoverflow.com/questions/67746456

            QUESTION

            Is there any way to increase pythons infinity limit?
            Asked 2021-May-02 at 20:28

            I am doing https://projecteuler.net/problem=57 where I get the numerator and the denominator and if the numerator is longer than the denominator I add one to the total.

            However, at one point (above n=805) the numerator and denominator get so large, that python converts them to infinity. Here is my code if you want to test it.

            ...

            ANSWER

            Answered 2021-May-02 at 20:28

            You cannot use floating-point arithmetic here. Floating point supports a limited number of significant digits (17 or some such). When the code divides numbers, the result is a floating-point number, and very soon (iteration 25 or some such) there will be not enough precision to represent it as float.

            What actually happens is your numbers become so large, float cannot even represent their exponent, and overflows to infinity. But that shouldn't matter, because the numbers are wrong long before they overflow.

            What you need is an algorithm which calculates numerator and denominator using only integer operations (like addition and multiplication), no division.

            Source https://stackoverflow.com/questions/67360496

            QUESTION

            How can I solve segment error while giving values greater than 10000000 in this c++ programm?
            Asked 2021-Feb-23 at 10:18

            How can I solve segment error while giving values greater than 10000000 in this c++ programm? I was trying the practice projects in projecteuler.net and I got this error Please help

            It is showing error in this portion of the code uint64_t prime[max];

            ...

            ANSWER

            Answered 2021-Feb-23 at 10:18

            Variable-length array like

            Source https://stackoverflow.com/questions/66331177

            QUESTION

            What is the optimal way to remove numbers from a list that are multiples of any other number in the list
            Asked 2021-Jan-09 at 05:52

            I was attempting to generalize an optimal answer to Problem 1 on Project Euler, and realized that while using the inclusion/exclusion method, the answer comes out wrong if you enter in a list where one of the numbers is a multiple of any of the other numbers in the list.

            For example, with a limit of 1000, and a list of [3, 5, 6, 8], the answer comes out as 306004, but the answer SHOULD come out as 266824. This is because 6 is a multiple of 3, and needs to be removed.

            I came up with the following code to remove extraneous multiples from a list:

            ...

            ANSWER

            Answered 2021-Jan-08 at 04:54

            At the very least, you need to collect all of the numbers, de-duplicate, sort, and then check lower numbers against higher ones. There are tricks you can use to streamline the process; you can make bit maps, check primality, etc. However, you still have an inherently O(N^2) process.

            However, the faster way to solve the original problem is to take the sums of the individual arithmetic sequences:

            Source https://stackoverflow.com/questions/65621580

            QUESTION

            Project Euler problem #3 why won't my code print my answer?
            Asked 2021-Jan-01 at 22:44

            I am using two for loops to count down from 600851475143 to find the highest prime number. The problem is here. The code works for a smaller number like the one given in the question, but for 600851475143 after running for a minute it ends without giving an answer. Is the problem the number of operations being too many?

            ...

            ANSWER

            Answered 2021-Jan-01 at 22:37

            You are using a for loop to iterate through numbers starting from 600851475143 going down; this is extremely slow. I suspect the program is taking too long to run. All project euler programs should be able to be completed within 2 minutes of running. Try optimising your algorithm so it runs faster.

            Source https://stackoverflow.com/questions/65534266

            QUESTION

            'Summation of primes' takes too long
            Asked 2021-Jan-01 at 10:27

            I don't know why this takes forever for big numbers I'm trying to solve Problem 10 in Project Euler (https://projecteuler.net/problem=10). Can someone help me please?

            It finds the first prime number and crosses all its factors, Then moves on to the next prime number and so on.

            ...

            ANSWER

            Answered 2021-Jan-01 at 05:51

            Apply some straightforward optimizations:

            • list numbers should not be used because each number can be calculated based on an index
            • simplified initialization of Isprime.

            For 1'000'000 got:

            Source https://stackoverflow.com/questions/65527194

            QUESTION

            Possible pandas bug?
            Asked 2020-Dec-24 at 00:53

            Just looking at some strange behavior in Python/Pandas.

            I know the setup is convoluted, I was doing some... challenges.

            ...

            ANSWER

            Answered 2020-Dec-24 at 00:53

            It appears that you have an integer overflow. In Python itself integers can have arbitraty precision, but since pandas/numpy by default use C data types, overflow can happen:

            enter link description here

            In order to solve the issue you might want to manually cast the data to Python integers:

            Source https://stackoverflow.com/questions/65432483

            QUESTION

            Project Euler Problem 92 Python: Don't understand my mistake
            Asked 2020-Dec-19 at 22:33

            I am not a very good programmer to start off with, I've done one course so far in my studies in Pure maths, and I really enjoyed it. So far, I have finished around 75 Project Euler problems.

            I have seen other solutions online for this problem but did not manage to grasp the code. I thought of my own solution, which incorporates the fact that there are only 567 possible squares sums and my current programming ability.

            My code is the following:

            ...

            ANSWER

            Answered 2020-Dec-19 at 17:21

            Small problem first: terminal_finder goes into infinite loop for x=0. To fix it, add if x == 0: return 0

            The reason for bad results is in the value list which contains both the numbers and their square sums. You are then searching the index of a square sum, but the search goes through both types of list items. So don't put the input numbers there, just the square sums.

            Actually, you don't have to search the list, because now there is the result for number N at the list index N.

            The minimal correction to your code is here:

            Source https://stackoverflow.com/questions/65371814

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install ProjectEuler

            You can download it from GitHub.
            You can use ProjectEuler 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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            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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