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Problem Title

Difficulty

Avg Time to solve

Attempted

Order of People Heights

126

Ninja

45 mins

605

Maximum Distance

44

Moderate

15 mins

943

Longest Repeating Subsequence

17

Moderate

15 mins

573

Clone Graph

23

Moderate

25 mins

686

Sub Matrices With Sum Zero

11

Moderate

15 mins

153

Regular Expression Matching

17

Hard

25 mins

392

Word Ladder

12

Hard

10 mins

247

Allocate Books

102

Moderate

10 mins

7154

BST queries

26

Easy

10 mins

548

Sum root to leaf

33

Easy

10 mins

1192

Word Search - lll

2

Moderate

20 mins

163

Shortest Alternating Path

5

Moderate

10 mins

66

All Unique Permutations

8

Easy

15 mins

511

Shortest Unique Prefix

7

Moderate

15 mins

110

Largest Distance Between Two Nodes In A Tree

5

Moderate

15 mins

151

Maximum Points On Straight Line

8

Hard

10 mins

291

Single Number II

12

Easy

15 mins

535

Least Common Ancestor

7

Moderate

25 mins

294

Justify Text

7

Hard

35 mins

97

Capture region

5

Moderate

10 mins

91

Four Keys Keyboard

4

Moderate

30 mins

150

Total Strings

2

Moderate

15 mins

1752

Insertion Sort in Linked List

6

Easy

10 mins

210

Allocate Books

139

Moderate

10 mins

6060

Flood Fill Algorithm

18

Moderate

10 mins

1112

Order of People Heights NEW

Ninja

126 upvotes

Maximum Distance NEW

Moderate

44 upvotes

Longest Repeating Subsequence NEW

Moderate

17 upvotes

Clone Graph NEW

Moderate

23 upvotes

Sub Matrices With Sum Zero NEW

Moderate

11 upvotes

Regular Expression Matching NEW

Hard

17 upvotes

Word Ladder NEW

Hard

12 upvotes

Allocate Books NEW

Moderate

102 upvotes

BST queries NEW

Easy

26 upvotes

Sum root to leaf NEW

Easy

33 upvotes

Word Search - lll NEW

Moderate

2 upvotes

Shortest Alternating Path NEW

Moderate

5 upvotes

All Unique Permutations NEW

Easy

8 upvotes

Shortest Unique Prefix NEW

Moderate

7 upvotes

Largest Distance Between Two Nodes In A Tree NEW

Moderate

5 upvotes

Maximum Points On Straight Line NEW

Hard

8 upvotes

Single Number II NEW

Easy

12 upvotes

Least Common Ancestor NEW

Moderate

7 upvotes

Justify Text NEW

Hard

7 upvotes

Capture region NEW

Moderate

5 upvotes

Four Keys Keyboard NEW

Moderate

4 upvotes

Total Strings NEW

Moderate

2 upvotes

Insertion Sort in Linked List NEW

Easy

6 upvotes

Allocate Books NEW

Moderate

139 upvotes

Flood Fill Algorithm NEW

Moderate

18 upvotes

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