All Questions
4
questions
5
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3
answers
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How many ways to reach $Nth$ number from starting point using any number steps between $1$ to $6$
In a board game, dice can roll either $1, 2, 3, 4, 5$ or $6$. The board has $N$ number of space. Every time of dice roll randomly, pawn moves forward exactly to dice rolled a number. Now the problem ...
- 63
3
votes
1
answer
808
views
number of derangements
In the normal derangement problem we have to count the number of derangement when each counter has just one correct house,what if some counters have shared houses.
A derangement of n numbers is a ...
- 315
2
votes
1
answer
293
views
Counting permutations, with additional restrictions
There are 10 slots and some marbles: 5 red, 3 blue, 2 green, how many ways can you fit those marbles into those slots?
Those marbles fit in 10!/(5! 3! 2!) ways
...
- 404
2
votes
2
answers
215
views
Combination/Permutation Question
I'm trying to solve a programming challenge, and I have narrowed down all the challenge to a combination/permutation problem.
I ended up with 5 possible scenarios, and I need to find all possible ...
- 141