Questions tagged [programming-challenge]
Programming challenges are off-site challenges meant to offer programmers educational experiences while testing their abilities.
3,276
questions
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Counting primes less than n in Python
I implemented (a refinement of) the Sieve of Eratosthenes for counting primes less than a given number n. This is a coding exercise from LeetCode. The class Solution...
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2
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MP3 Playlist Class in Python
Background Info
I am an intermediate level Python programmer. This is my implementation of a MP3 Playlist class challenge that was hosted on 101 Computing.Net. The ...
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Python program for the Longest Substring Without Repeating Characters
I write my Python program below for this Leetcode problem:
Given a string s, find the length of the longest substring without repeating characters.
Example 1:
...
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4
votes
3
answers
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Split word based on terms from an array
I was faced with a coding challenge and I'm looking for a more elegant way to achieve the goal.
The challenge
Take the word baseball from the first item in the string
array and split it into two ...
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9
votes
3
answers
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Determine if Hill or Valley
This is my accepted submission for LeetCode. The problem is
You are given a 0-indexed integer array nums. An index i is part of ...
2
votes
3
answers
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Subarrays with length
You are given an array A of length N (where N is as large as 2×105). All elements of the array are positive integers less than or equal to N. Determine the count of subarrays (contiguous subsequences) ...
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votes
1
answer
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Largest product in a series
Problem description:
The four adjacent digits in the 1000-digit number that have the greatest product are 9 × 9 × 8 × 9 = 5832.
73167176531330624919225119674426574742355349194934
...
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2
votes
3
answers
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the 10001st prime number
Problem description:
By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.
What is the 10001st prime number?
Prime number:
A prime number is a whole ...
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3
votes
1
answer
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LeetCode 68. Text Justification
I am trying out Leetcode problem 68 and I need your help to asses the code. I am pretty new to this.
Given an array of strings words and a width ...
0
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2
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Sum square difference
Problem description:
The sum of the squares of the first ten natural numbers is,
1² + 2² + … + 10² = 385
The square of the sum of the first ten natural numbers is,
(1 + 2 + … + 10)² = 55² = 3025
Hence ...
- 173
2
votes
1
answer
612
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The smallest positive number that is evenly divisible by all of the numbers from 1 to 20
Problem description:
2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder.
What is the smallest positive number that is evenly divisible by all of ...
- 173
3
votes
3
answers
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The largest palindrome made from the product of two 3-digit numbers
Problem description:
A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99.
Find the largest palindrome made from the ...
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votes
2
answers
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Calculate the first largest factor of 600851475143
ٍProblem description:
The prime factors of 13195 are 5, 7, 13 and 29. Largest prime factor 13195 is 29.
What is the largest prime factor of the number 600851475143 ?
Prime Factor:
any of the prime ...
- 173
1
vote
0
answers
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Cleanly modifying values in hashmap for a k-sum challenge
Just started learning Rust and here's a program that has caused me some agony to implement in Rust. This is very easy to implement in C++, but Rust's borrow checker is causing all sorts of trouble. My ...
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JavaScript function that generates Fibonacci like sequences of given order
Generalizations of Fibonacci numbers
Fibonacci numbers of higher order
A Fibonacci sequence of order \$n\$ is an integer sequence in which each
sequence element is the sum of the previous \$n\$
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