# Problems

1 – 29 of 29
 Problem Title Likes Solvers Difficulty

#### Problem 1026. Solving a quadratic equation

Created by: Abdelhak ARESMOUK

0

85

#### Problem 2114. Factorial Numbers

Created by: Petr Dostal

3

321

#### Problem 1815. 06 - Matrix Equations 3

Created by: Samuel Thrysøe

1

357

#### Problem 337. Number of toolboxes?

Created by: Alan Chalker

2

262

Created by: Will

32

6501

#### Problem 2486. Get the variable value from a string and generate sum

Created by: Peter Babu

0

19

#### Problem 566. Sum of first n terms of a harmonic progression

Created by: Srivardhini

3

321

#### Problem 45446. Create logarithmically spaced values (★)

Created by: Anirban Pal

0

103

#### Problem 2987. Hardy-Ramanujan number

Created by: Ritwik Rudra

0

71

#### Problem 554. Is the Point in a Circle?

Created by: Kuifeng

4

395

#### Problem 303. Convert Hard Drive marketing sizes to actual data sizes

Created by: Alan Chalker

1

64

#### Problem 42785. Choose group with people

Created by: Pritom Kumar Mondal

0

20

#### Problem 198. Are you in or are you out?

Created by: the cyclist

3

210

#### Problem 963. We love vectorized solutions. Problem 1 : remove the row average.

Created by: William Smith

6

673

#### Problem 1162. Happy 2013...

Created by: James

8

137

#### Problem 43301. Calculate inverse matrix in m by n matrix

Created by: Jang geun Choi

5

79

#### Problem 43078. How many bottles can you drink?

Created by: Jakub Mrowka

13

69

#### Problem 1042. Operate on matrices of unequal, yet similar, size

Created by: J-G van der Toorn

1

120

#### Problem 546. Is A the inverse of B?

Created by: Bruce Raine

5

434

#### Problem 307. First non-zero element in each column

Created by: Julio

4

728

#### Problem 42781. How many ways to write a number

Created by: Pritom Kumar Mondal

1

19

1

13

#### Problem 42855. Height of a right-angled triangle

Created by: Jasmina Lazic

8

1029

#### Problem 114. Check to see if a Sudoku Puzzle is Solved

Created by: @bmtran (Bryant Tran)

Tags sudoku, solve, logic

7

299

#### Problem 556. Stuff the Board

Created by: Ned Gulley

7

454

#### Problem 54. Maximum running product for a string of numbers

Created by: Cody Team

6

1540

#### Problem 753. Solitaire Cipher

Created by: Doug Hull

8

238

#### Problem 44455. Find the average of a random sequance

Created by: Shaul Salomon

4

408

#### Problem 801. Construct an index vector from two input vectors in vectorized fashion

Created by: Christopher

9

264

1 – 29 of 29