# Problems

1 – 22 of 22
 Problem Title Likes Solvers Difficulty

#### Problem 42920. Find the inverse permutation

Created by: Jens Kjærgaard Boldsen

Tags math, vector

2

61

#### Problem 1854. Factorial: Unlimited Size : java.math

Created by: Richard Zapor

0

40

#### Problem 2650. Kurchan 4x4 - Optimal score

Created by: James

2

34

#### Problem 2652. Kurchan 5x5 - Optimal Score

Created by: James

1

36

#### Problem 160. So many choices

Created by: the cyclist

3

438

#### Problem 43091. Maximum sum from any 2 numbers with a variable number of inputs

Created by: Jamil Kasan

7

52

#### Problem 1646. Kurchan 3x3 - Optimal Score

Created by: Richard Zapor

1

25

#### Problem 43969. Sleeping Queens 1

Created by: James

4

21

#### Problem 44782. Highest powers in factorials

Created by: James

3

21

#### Problem 44456. Sum of combinations

Created by: Pramit Biswas

Tags sum

1

16

#### Problem 1634. Kurchan Square - Evaluation Function

Created by: Richard Zapor

Tags matrix, contest, det

1

30

#### Problem 43179. Red and green towers

Created by: Giovanni Mottola

2

22

#### Problem 986. Penny Flipping: Reverse subsets of a sequence of coins until you recover the original configuration

Created by: Everett Rubel

2

14

Created by: HH

2

22

#### Problem 42790. Full combinations

Created by: Peng Liu

1

26

#### Problem 2488. Create all combinations of vectors

Created by: Abdullah Caliskan

Tags vector, nnet

1

27

#### Problem 44719. Penny Distribution Machine

Created by: J. S. Kowontan

1

21

#### Problem 44747. Exponents in Factorials

Created by: James

5

25

#### Problem 42918. Addition Partition

Created by: James

Tags partitions

4

23

#### Problem 1941. Lowest sum from a group of digits

Created by: James

7

50

#### Problem 44082. Recycled Numbers (CodeJam Qualification Round 2012)

Created by: Jean-Marie Sainthillier

Tags gjam, codejam

3

21

#### Problem 44787. What can you get for exactly amount of money(harder)

Created by: li haitao

3

12

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