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  • Member for 8 years, 10 months
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56 votes
8 answers
36k views

Efficiently checking if a number is divisible by 3

32 votes
7 answers
66k views

Check for balanced parentheses

32 votes
4 answers
78k views

A* search algorithm

22 votes
3 answers
32k views

Find all paths from source to destination

19 votes
1 answer
24k views

Excel column string to row number and vice versa

14 votes
2 answers
7k views

Count the one islands in the matrix

12 votes
3 answers
61k views

Huffman code implementation

12 votes
3 answers
1k views

Speed dating algorithm to select the pair of dates

10 votes
3 answers
1k views

Find biggest basin

10 votes
7 answers
38k views

Find the value nearest to k in the sorted array

10 votes
2 answers
6k views

Find a path through a maze

10 votes
2 answers
22k views

Find intersections of overlapping intervals

10 votes
3 answers
28k views

Creating a binary search tree

8 votes
2 answers
9k views

Check if directed graph contains a cycle

8 votes
1 answer
2k views

Assembly line scheduling

8 votes
3 answers
11k views

Interval search tree

8 votes
3 answers
1k views

Given a Perfect Binary Tree, reverse the alternate level nodes of the binary tree

8 votes
1 answer
17k views

Merge two linked list

8 votes
3 answers
2k views

Print all nodes that are at distance k from a leaf node

7 votes
3 answers
1k views

Check if a binary tree is balanced

7 votes
3 answers
2k views

Iterator of iterator

7 votes
1 answer
2k views

Find the Next Greatest Element

7 votes
2 answers
9k views

Calculate fibonacci in O(log n)

7 votes
2 answers
5k views

Jump game to find minimum hops from source to destination

7 votes
1 answer
3k views

Tower of Hanoi solver

7 votes
3 answers
31k views

Implementation of Dijkstra's algorithm

7 votes
2 answers
48k views

Create a tree from a list of nodes with parent pointers only

6 votes
3 answers
10k views

Flatten iterator for nested list

6 votes
2 answers
10k views

Finding greatest value in array smaller than x

6 votes
2 answers
43k views

Given N*N matrix, rotate it by 90 degree to left and right without extra memory

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