Jing Zhang

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Problem 45500. Maximize the production in a plant within equipment capacity

Created by: Karl Ezra Pilario

Tags chemical engineering, max flow, digraph

2

Solutions

618

Size

2

Solutions

618

Size

Problem 45415. Find an optimal placement of coolers on a grid

Created by: Karl Ezra Pilario

Tags path, dynamic programming, chemical engineering

1

Solution

115

Size

1

Solution

115

Size

Problem 44509. Determine if input is a valid AHP evaluation matrix

Created by: Mehmet OZC

Tags logical, check

7

Solutions

104

Size

7

Solutions

104

Size

Problem 451. Is this matrix orthogonal?

Created by: Bruce Raine

Tags orthogonal

10

Solutions

30

Size

10

Solutions

30

Size

Problem 3073. Projector Matrix

Created by: goc3

Tags matrix, projector, idempotent

3

Solutions

20

Size

3

Solutions

20

Size

Problem 615. Nilpotent matrix

Created by: Grzegorz Knor

Tags matrix

12

Solutions

53

Size

12

Solutions

53

Size

Problem 2130. Orthonormal matrix

Created by: Abdullah Caliskan

Tags matrix

3

Solutions

43

Size

3

Solutions

43

Size

Problem 44258. Outer product of multiple vectors

Created by: Andrew Newell

Tags linear algebra, outer product

7

Solutions

68

Size

7

Solutions

68

Size

Problem 42385. Combined Ages 4 - Non-symmetric with multiples, n ≥ 3

Created by: goc3

Tags matrix, sum, linear

1

Solution

83

Size

1

Solution

83

Size

Problem 42383. Combined Ages 3 - Non-symmetric, n ≥ 3

Created by: goc3

Tags matrix, sum, linear

1

Solution

72

Size

1

Solution

72

Size

Problem 42384. Combined Ages 2 - Symmetric, n ≥ 3

Created by: goc3

Tags matrix, sum, linear

2

Solutions

26

Size

2

Solutions

26

Size

Problem 42382. Combined Ages 1 - Symmetric, n = 3

Created by: goc3

Tags matrix, sum, linear

4

Solutions

34

Size

4

Solutions

34

Size

Problem 446. Solve the set of simultaneous linear equations

Created by: Bruce Raine

Tags simultaneous equations, linear

2

Solutions

15

Size

2

Solutions

15

Size

Problem 42988. Linear system of equations

Created by: Abhishek Jain

Tags equations

1

Solution

13

Size

1

Solution

13

Size

Problem 423. System of equations

Created by: Tom

Tags system of equations

3

Solutions

31

Size

3

Solutions

31

Size

Problem 258. linear least squares fitting

Created by: Tomasz

Tags fit, optimization, least squares

5

Solutions

112

Size

5

Solutions

112

Size

Problem 389. Column norms of a matrix

Created by: Federico

Tags linear algebra, matrix, norm

2

Solutions

26

Size

2

Solutions

26

Size

Problem 1188. The Answer to Life, the Universe, and Everything

Created by: Joseph Kirk

Tags douglas adams, fun

1

Solution

12

Size

1

Solution

12

Size

Problem 48065. Find the Pattern 10

Created by: Doddy Kastanya

Tags logic, sequence, pattern

2

Solutions

17

Size

2

Solutions

17

Size

Problem 48060. Find the Pattern 9

Created by: Doddy Kastanya

Tags logic, sequence, pattern

1

Solution

24

Size

1

Solution

24

Size

Problem 48055. Find the Pattern 8

Created by: Doddy Kastanya

Tags logic, sequence, pattern

2

Solutions

34

Size

2

Solutions

34

Size

Problem 48050. Find the Pattern 7

Created by: Doddy Kastanya

Tags logic, sequence, pattern

2

Solutions

35

Size

2

Solutions

35

Size

Problem 48045. Find the Pattern 6

Created by: Doddy Kastanya

Tags logic, sequence, pattern

3

Solutions

47

Size

3

Solutions

47

Size

Problem 48035. Find the Pattern 4

Created by: Doddy Kastanya

Tags logic, sequence, pattern

2

Solutions

43

Size

2

Solutions

43

Size

Problem 48030. Find the Pattern 3

Created by: Doddy Kastanya

Tags logic, sequence, pattern

1

Solution

16

Size

1

Solution

16

Size

Problem 48025. Find the Pattern 2

Created by: Doddy Kastanya

Tags sequence, pattern

2

Solutions

16

Size

2

Solutions

16

Size

Problem 48020. Find the Pattern 1

Created by: Doddy Kastanya

Tags logic, sequence, pattern

1

Solution

14

Size

1

Solution

14

Size

Problem 48040. Find the Pattern 5

Created by: Doddy Kastanya

Tags logic, sequence, pattern

4

Solutions

24

Size

4

Solutions

24

Size

Problem 722. Make a run-length companion vector

Created by: Ned Gulley

Tags vector, asee, best

1

Solution

50

Size

1

Solution

50

Size

Problem 730. How many trades represent all the profit?

Created by: Doug Hull

Tags vector, asee, summation

1

Solution

31

Size

1

Solution

31

Size

Problem 729. Flag largest magnitude swings as they occur

Created by: Doug Hull

Tags asee, peaks, change

3

Solutions

106

Size

3

Solutions

106

Size

Problem 731. Given a window, how many subsets of a vector sum positive

Created by: Doug Hull

Tags asee, good

1

Solution

52

Size

1

Solution

52

Size

Problem 659. How long is the longest prime diagonal?

Created by: Ned Gulley

Tags primes, spiral, diagonal

1

Solution

110

Size

1

Solution

110

Size

Problem 660. Find a subset that divides the vector into equal halves

Created by: Ned Gulley

Tags vector, asee, summation

1

Solution

64

Size

1

Solution

64

Size

Problem 661. Spot the outlier

Created by: Ned Gulley

Tags asee, lines, points

3

Solutions

151

Size

3

Solutions

151

Size

Problem 751. Implement simple rotation cypher

Created by: Doug Hull

Tags encoding, cipher, asee

1

Solution

76

Size

1

Solution

76

Size

Problem 658. Find the biggest empty box

Created by: Ned Gulley

Tags asee

2

Solutions

154

Size

2

Solutions

154

Size

Problem 1267. Calculate the probability that at least two people in a group share the same birthday.

Created by: Jeremy

Tags probability

5

Solutions

63

Size

5

Solutions

63

Size

Problem 1240. Coin change combinations.

Created by: Ken

Tags math

1

Solution

126

Size

1

Solution

126

Size

Problem 44779. Don't be mean. Be nice!

Created by: James

Tags mean, nchoosek

1

Solution

111

Size

1

Solution

111

Size

Problem 84. Longest Divisor Run

Created by: Cody Team

Tags matlab

1

Solution

101

Size

1

Solution

101

Size

Problem 90. Connect Four Win Checker

Created by: Cody Team

Tags matlab, game

2

Solutions

315

Size

2

Solutions

315

Size

Problem 93. Calculate the Levenshtein distance between two strings

Created by: Cody Team

Tags matlab, string metric

1

Solution

138

Size

1

Solution

138

Size

Problem 58. Tic Tac Toe FTW

Created by: Cody Team

Tags game, fun, tic tac toe

2

Solutions

134

Size

2

Solutions

134

Size

Problem 68. Kaprekar Steps

Created by: Cody Team

Tags matlab, lookup table, poor_problem_statement

3

Solutions

122

Size

3

Solutions

122

Size

Problem 95. Given two arrays, find the maximum overlap

Created by: Cody Team

Tags matlab

1

Solution

552

Size

1

Solution

552

Size

Problem 63. Encode Roman Numerals

Created by: Cody Team

Tags encoding

1

Solution

110

Size

1

Solution

110

Size

Problem 71. Read a column of numbers and interpolate missing data

Created by: Cody Team

Tags data cleaning, average

1

Solution

130

Size

1

Solution

130

Size

Problem 65. Word Counting and Indexing

Created by: Cody Team

Tags strings

2

Solutions

122

Size

2

Solutions

122

Size

Problem 72. Interpolator

Created by: Cody Team

Tags interpolation

8

Solutions

44

Size

8

Solutions

44

Size

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