Top Google Coding Interview Questions
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Problem Title
Difficulty
Avg Time to solve
Attempted
Order of People Heights NEW
113
Ninja
45 mins
513
Maximum Distance NEW
41
Moderate
15 mins
854
Longest Repeating Subsequence NEW
15
Moderate
15 mins
487
Clone Graph NEW
20
Moderate
25 mins
411
Sub Matrices With Sum Zero NEW
11
Moderate
15 mins
120
Regular Expression NEW
16
Hard
25 mins
351
Word Ladder NEW
11
Hard
10 mins
200
Allocate Books NEW
60
Moderate
10 mins
4084
BST queries NEW
21
Easy
10 mins
415
Sum root to leaf NEW
33
Easy
10 mins
988
Word Search - lll NEW
2
Moderate
20 mins
153
Shortest Alternating Path NEW
5
Moderate
10 mins
54
All Unique Permutations NEW
6
Easy
15 mins
131
Shortest Unique Prefix NEW
7
Moderate
15 mins
88
Largest Distance Between Two Nodes In A Tree NEW
4
Moderate
15 mins
79
Maximum Points On Straight Line NEW
7
Hard
10 mins
218
Element that appears once NEW
10
Easy
15 mins
406
Least Common Ancestor NEW
6
Moderate
25 mins
209
Justify Text NEW
7
Hard
35 mins
87
Capture region NEW
5
Moderate
10 mins
77
Four Keys Keyboard NEW
4
Moderate
30 mins
132
Total Strings NEW
2
Moderate
15 mins
1511
Insertion Sort in Linked List NEW
5
Easy
10 mins
184
Allocate Books NEW
109
Moderate
10 mins
4905
Flood Fill Algorithm NEW
15
Moderate
10 mins
566
Order of People Heights NEW
Ninja
113 upvotes
Maximum Distance NEW
Moderate
41 upvotes
Longest Repeating Subsequence NEW
Moderate
15 upvotes
Clone Graph NEW
Moderate
20 upvotes
Sub Matrices With Sum Zero NEW
Moderate
11 upvotes
Regular Expression NEW
Hard
16 upvotes
Word Ladder NEW
Hard
11 upvotes
Allocate Books NEW
Moderate
60 upvotes
BST queries NEW
Easy
21 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
6 upvotes
Shortest Unique Prefix NEW
Moderate
7 upvotes
Largest Distance Between Two Nodes In A Tree NEW
Moderate
4 upvotes
Maximum Points On Straight Line NEW
Hard
7 upvotes
Element that appears once NEW
Easy
10 upvotes
Least Common Ancestor NEW
Moderate
6 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
5 upvotes
Allocate Books NEW
Moderate
109 upvotes
Flood Fill Algorithm NEW
Moderate
15 upvotes
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