Tagged Questions
0
votes
1answer
83 views
Challenge: take ciphered text and decipher, also print out if it was offset to the left or right
Problem:
Take input text like this: (all input should be considered strings)
Upi djpi;f ytu yu[omh pmr yp yjr ;rgy.
And figure out if it was offset left or offset right (on a standard qwerty ...
3
votes
3answers
401 views
Secret Santa Challenge [duplicate]
Possible Duplicate:
Holiday Gift Exchange
Background:
Secret Santa is a Western Christmas tradition in which members of a group or community are randomly assigned a person to whom they ...
1
vote
2answers
221 views
List ALL prime-factorized natural numbers in ANY order
This is a variant of List prime-factorized natural numbers up to N in ascending order, but the solutions can be very different.
Write a program that outputs prime factorizations of all natural ...
2
votes
2answers
254 views
List prime-factorized natural numbers up to N in ascending order
For a given n list prime factorization of all natural numbers between 1 and n in ascending order. For example, for n = 10 the output would be:
1:
2: 2^1
3: 3^1
4: 2^2
5: 5^1
6: 2^1 3^1
7: 7^1
8: 2^3
...
2
votes
2answers
408 views
Help johnny to solve this Puzzle
Scenario
Little Johnny wants to play with his friends today. But his babysitter won't let him go! After a lot of begging, the heartless nanny gives him her brand new electronic puzzle and says: "If ...
0
votes
3answers
288 views
Prime tester + nth-prime finder (TO BE CLOSED) [duplicate]
Possible Duplicate:
List of first n prime numbers most efficiently and in shortest code
This is to be closed soon - please don't answer (mod- please close!)
This challenge is to write the ...
2
votes
9answers
919 views
Triangle Puzzle
Triangle Puzzle
Consider the triangle below.
This triangle would be represented by the following input file.
5
9 6
4 6 8
0 7 1 5
By starting at the top and ...
5
votes
1answer
1k views
Sudoku board generator
A program that randomly generates a Sudoku game board with varying degrees of difficulty (however you decide to measure difficulty). Sudoku requires that there is only one solution, so your program ...
5
votes
12answers
2k views
Random sampling without replacement
Create a function that will output a set of distinct random numbers drawn from a range. The order of the elements in the set is unimportant (they can even be sorted), but it must be possible for the ...
6
votes
4answers
598 views
Fastest Sort in BrainF***
After having implemented QuickSort in BrainF***, I realized it probably wasn't that quick. Operations that are O(1) in normal languages (like array indexing) are significantly longer in BF. Most of ...
-6
votes
5answers
401 views
write a code the find n-th number of Gray Code list
Write a function that, given N >= 0, finds the Nth number in a standard Gray code.
Example input:
1
2
3
4
Example output:
1
3
2
6
Additional reference
3
votes
13answers
1k views
Check if number is a sum of consecutive numbers or not
Write a program that checks if a given positive integer can be represented as sum of two or more consecutive positive integers.
Example:
43 can be represented as 21 + 22
10 = 1+2+3+4
but 4 cannot ...
4
votes
4answers
472 views
Code-Challenge:The Nearest Prime
Challenge
In this task you would be given an
integer N you have to output the
nearest prime to the integer.
If the number is prime itself output the number.
The input N is given in a single ...
3
votes
4answers
379 views
Code-Challenge: Farey sequence (II)
Challenge
In this task you would be given an integer N
(less than 10^6), output the number of terms in the Farey
sequence of order N.
The input N is given in a single line,the inputs are ...
7
votes
2answers
472 views
Break the broken cipher
I have designed a simple random generator that cycles two numbers in a chaotic way using a multiply and modulus method. It works great for that.
If I were to use it as a cipher generator it would ...
