Problems

1 – 22 of 22

Problem Title Likes Solvers Difficulty

Problem 1854. Factorial: Unlimited Size : java.math

Created by: Richard Zapor

Tags factorial, java, bigdecimal

Problem 2650. Kurchan 4x4 - Optimal score

Created by: James

Tags kurchan, 4x4 matrix

Problem 42920. Find the inverse permutation

Created by: Jens Kjærgaard Boldsen

Tags math, vector

Problem 160. So many choices

Created by: the cyclist

Tags choose, basic matlab, basics

429

Problem 2652. Kurchan 5x5 - Optimal Score

Created by: James

Tags contest, kurchan, 5x5 matrix

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

Created by: Jamil Kasan

Tags sum, variable input

Problem 1646. Kurchan 3x3 - Optimal Score

Created by: Richard Zapor

Tags contest, toc, randperm

Problem 44782. Highest powers in factorials

Created by: James

Tags powers, factorials, excited!

Problem 1634. Kurchan Square - Evaluation Function

Created by: Richard Zapor

Tags matrix, contest, det

Problem 42790. Full combinations

Created by: Peng Liu

Tags combination, ff2n, fullfact

Problem 44456. Sum of combinations

Created by: Pramit Biswas

Tags sum

Problem 43179. Red and green towers

Created by: Giovanni Mottola

Tags arithmetic, number theory

Problem 43969. Sleeping Queens 1

Created by: James

Tags too late for card games 1, christmas gifts, kids stuff

Problem 2488. Create all combinations of vectors

Created by: Abdullah Caliskan

Tags vector, nnet

Problem 44747. Exponents in Factorials

Created by: James

Tags exponents, factorials, excited!

Problem 1941. Lowest sum from a group of digits

Created by: James

Tags third grade math, smallest sum

Problem 42615. Factorizing a number into a given number of factors

Created by: HH

Tags probability

Problem 42918. Addition Partition

Created by: James

Tags partitions

Problem 44719. Penny Distribution Machine

Created by: J. S. Kowontan

Tags distribution machine

Problem 44082. Recycled Numbers (CodeJam Qualification Round 2012)

Created by: Jean-Marie Sainthillier

Tags gjam, codejam

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

Created by: Everett Rubel

Tags permutations, reverse, flip

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

Created by: li haitao

Tags combinatorics, search, knapsack problem

1 – 22 of 22

Difficulty Rating

Problem Groups

Difficulty Rating

Problem Groups

Problems

Problem 1854. Factorial: Unlimited Size : java.math

Problem 2650. Kurchan 4x4 - Optimal score

Problem 42920. Find the inverse permutation

Problem 160. So many choices

Problem 2652. Kurchan 5x5 - Optimal Score

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

Problem 1646. Kurchan 3x3 - Optimal Score

Problem 44782. Highest powers in factorials

Problem 1634. Kurchan Square - Evaluation Function

Problem 42790. Full combinations

Problem 44456. Sum of combinations

Problem 43179. Red and green towers

Problem 43969. Sleeping Queens 1

Problem 2488. Create all combinations of vectors

Problem 44747. Exponents in Factorials

Problem 1941. Lowest sum from a group of digits

Problem 42615. Factorizing a number into a given number of factors

Problem 42918. Addition Partition

Problem 44719. Penny Distribution Machine

Problem 44082. Recycled Numbers (CodeJam Qualification Round 2012)

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

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