User Lin Ma

9 votes

1 answer

14k views

Check if two rectangles overlap

asked Dec 30, 2016 at 23:56

9 votes

1 answer

831 views

Check “five in a row” for a 15x15 chess board (part 2)

asked Feb 6, 2017 at 4:40

9 votes

1 answer

8k views

Find the nearest point of a given set of points

asked Feb 19, 2017 at 23:37

8 votes

2 answers

3k views

Sudoku solver recursive solution

asked Feb 21, 2017 at 1:00

8 votes

1 answer

1k views

Find the nearest point of a given set of points (part 2)

asked Feb 21, 2017 at 2:02

7 votes

1 answer

155 views

Classic merge sort (part 2)

asked Dec 13, 2016 at 6:28

7 votes

4 answers

7k views

Buy once and sell once for maximum profit

asked Aug 7, 2016 at 21:18

7 votes

1 answer

3k views

Trie Tree match string containing ? and *

asked Sep 30, 2016 at 7:00

7 votes

4 answers

7k views

Find the shortest whole repetitive substring

asked Oct 12, 2016 at 7:46

6 votes

1 answer

348 views

Algorithm to park cars with minimal moves (2nd version)

asked Oct 30, 2016 at 6:05

6 votes

2 answers

10k views

sparse vector dot product

asked Dec 2, 2016 at 8:06

6 votes

2 answers

2k views

Strongly connected component algorithm in Python 2.7

asked Oct 4, 2016 at 22:53

6 votes

2 answers

4k views

Knuth–Morris–Pratt string match algorithm

asked Oct 18, 2015 at 1:08

6 votes

1 answer

2k views

Sparse matrix compressed sparse row (CSR) in Python 2.7

asked Dec 18, 2016 at 0:26

6 votes

2 answers

799 views

4 sum challenge (part 2)

asked Jan 22, 2017 at 6:00

6 votes

2 answers

3k views

Check "five in a row" for a 15x15 chess board

asked Jan 24, 2017 at 6:13

6 votes

2 answers

7k views

Prefix search by trie tree

asked Feb 14, 2017 at 7:15

5 votes

1 answer

1k views

Dynamic programming solution for cross river algorithm

asked Feb 12, 2017 at 0:25

5 votes

1 answer

704 views

Balanced smileys check algorithm (part 3)

asked Feb 9, 2017 at 20:37

5 votes

1 answer

223 views

Using range minimal query for lowest common ancestor (LCA) -- part 2

asked Feb 11, 2017 at 6:28

5 votes

1 answer

1k views

Quick select the kth smallest value

asked Feb 3, 2017 at 4:05

5 votes

1 answer

834 views

Counting the number of elements in a sorted array

asked Feb 20, 2017 at 1:13

5 votes

4 answers

2k views

Two sum with two lists

asked Jan 19, 2017 at 23:14

5 votes

0 answers

430 views

4 sum challenge [duplicate]

asked Jan 20, 2017 at 2:21

5 votes

1 answer

712 views

Find equal pairs

asked Jan 10, 2017 at 7:23

5 votes

2 answers

2k views

Valid palindrome solution

asked Dec 14, 2016 at 6:39

5 votes

2 answers

136 views

Classic merge sort

asked Dec 12, 2016 at 0:40

5 votes

2 answers

3k views

Find median of two sorted arrays

asked Apr 10, 2016 at 0:44

5 votes

1 answer

647 views

Social network broadcast message algorithm

asked Sep 25, 2016 at 0:07

5 votes

2 answers

550 views

Print tree in a zigzag manner

asked Jul 19, 2016 at 1:30

Stack Exchange Network

106 Questions

Check if two rectangles overlap

Check “five in a row” for a 15x15 chess board (part 2)

Find the nearest point of a given set of points

Sudoku solver recursive solution

Find the nearest point of a given set of points (part 2)

Classic merge sort (part 2)

Buy once and sell once for maximum profit

Trie Tree match string containing ? and *

Find the shortest whole repetitive substring

Algorithm to park cars with minimal moves (2nd version)

sparse vector dot product

Strongly connected component algorithm in Python 2.7

Knuth–Morris–Pratt string match algorithm

Sparse matrix compressed sparse row (CSR) in Python 2.7

4 sum challenge (part 2)

Check "five in a row" for a 15x15 chess board

Prefix search by trie tree

Dynamic programming solution for cross river algorithm

Balanced smileys check algorithm (part 3)

Using range minimal query for lowest common ancestor (LCA) -- part 2

Quick select the kth smallest value

Counting the number of elements in a sorted array

Two sum with two lists

4 sum challenge [duplicate]

Find equal pairs

Valid palindrome solution

Classic merge sort

Find median of two sorted arrays

Social network broadcast message algorithm

Print tree in a zigzag manner