Top Google Coding Interview Questions
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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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