### Problem Groups The Community group contains problems contributed by Cody players. All other groups contain problems created by the Cody administrator.

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532Solvers

### Project Euler: Problem 1, Multiples of 3 and 5

Created by Doug Hull

291Solvers

### Implement simple rotation cypher

Created by Doug Hull

276Solvers

### Getting the indices from a vector

Created by Doug Hull

272Solvers

### Given a window, how many subsets of a vector sum positive

Created by Doug Hull

258Solvers

### Scoring for oriented dominoes

Created by Doug Hull

250Solvers

### Project Euler: Problem 6, Natural numbers, squares and sums.

Created by Doug Hull

238Solvers

### Project Euler: Problem 10, Sum of Primes

Created by Doug Hull

225Solvers

### Convert a vector into a number

Created by Doug Hull

203Solvers

### Flag largest magnitude swings as they occur

Created by Doug Hull

195Solvers

### How many trades represent all the profit?

Created by Doug Hull

145Solvers

### Make a random, non-repeating vector.

Created by Doug Hull

145Solvers

### Project Euler: Problem 7, Nth prime

Created by Doug Hull

127Solvers

### Find perfect placement of non-rotating dominoes (easier)

Created by Doug Hull

121Solvers

### Getting logical indexes

Created by Doug Hull

### Problem Group

108Solvers

This problem is locked. You need to solve more problems from Tiles Challenge group to unlock it.

107Solvers

### Project Euler: Problem 2, Sum of even Fibonacci

Created by Doug Hull

102Solvers

### Getting the row and column location from a matrix

Created by Doug Hull

97Solvers

### Project Euler: Problem 5, Smallest multiple

Created by Doug Hull

### Problem Group

93Solvers

This problem is locked. You need to solve more problems from Tiles Challenge group to unlock it.

93Solvers

This problem is locked. You need to solve more problems from Tiles Challenge group to unlock it.

91Solvers

### Getting the absolute index from a matrix

Created by Doug Hull

88Solvers

### Project Euler: Problem 8, Find largest product in a large string of numbers

Created by Doug Hull

80Solvers

### Solitaire Cipher

Created by Doug Hull

57Solvers

### Steal, Share, or Catch

Created by Doug Hull

56Solvers

### Project Euler: Problem 9, Pythagorean numbers

Created by Doug Hull

55Solvers

### Make a simplified barcode

Created by Doug Hull

46Solvers

### String substitution, sub problem to cryptoMath

Created by Doug Hull

43Solvers

### Project Euler: Problem 4, Palindromic numbers

Created by Doug Hull

41Solvers

### Decode a simplified barcode

Created by Doug Hull

39Solvers

### Poker Series 01: isStraightFlush

Created by Doug Hull

35Solvers

### Project Euler: Problem 3, Largest prime factor

Created by Doug Hull

### Problem Group

33Solvers

Created by Doug Hull

27Solvers

### Make blocks of color

Created by Doug Hull

26Solvers

### Poker Series 04: isFlush

Created by Doug Hull

24Solvers

### Poker Series 03: isFullHouse

Created by Doug Hull

24Solvers

### Poker Series 05: isStraight

Created by Doug Hull

19Solvers

### Poker Series 06: isThreeKind

Created by Doug Hull

18Solvers

### Get ranking of a combination

Created by Doug Hull

18Solvers

### Poker Series 09: IsHighCard

Created by Doug Hull

17Solvers

### Poker Series 07: IsTwoPair

Created by Doug Hull

17Solvers

### Retirement savings

Created by Doug Hull

15Solvers

### Poker Series 08: IsPair

Created by Doug Hull

15Solvers

### Poker Series 10: bestHand

Created by Doug Hull

### Problem Group

14Solvers

Created by Doug Hull

12Solvers

### Implement Solitaire cipher for N long deck.

Created by Doug Hull

12Solvers

### Cumulative probability of finding an unlikely combination

Created by Doug Hull

11Solvers

### Siblings of a graphics object

Created by Doug Hull

10Solvers

### Poker Series 11: selectBestHand

Created by Doug Hull

9Solvers

### Get ranking of a combination looking for speed.

Created by Doug Hull

5Solvers

### 2048 tile game

Created by Doug Hull