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23 problems
Algorithms pattern questions across top companies
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23
questions
#158
Read N Characters Given read4 II - Call Multiple Times
Hard
array
WalkCCC
Apple
Bloomberg
Google
#277
Find the Celebrity
Medium
two pointers
WalkCCC
Amazon
Apple
Google
#1274
Number of Ships in a Rectangle
Hard
array
WalkCCC
Applied Intuition
Bloomberg
#374
Guess Number Higher or Lower
Easy
binary search
NeetCode
Amazon
Bloomberg
Google
#1236
Web Crawler
Medium
string
WalkCCC
Amazon
Dropbox
Meta
#489
Robot Room Cleaner
Hard
backtracking
WalkCCC
Amazon
Google
LinkedIn
#843
Guess the Word
Hard
array
WalkCCC
Amazon
Apple
Bloomberg
#1428
Leftmost Column with at Least a One
Medium
array
WalkCCC
Meta
SAP
Uber
#278
First Bad Version
Easy
binary search
NeetCode
Amazon
Apple
Bloomberg
#3023
Find Pattern in Infinite Stream I
Medium
array
WalkCCC
Uber
#3037
Find Pattern in Infinite Stream II
Hard
array
WalkCCC
Uber
#1778
Shortest Path in a Hidden Grid
Medium
array
WalkCCC
Amazon
Bloomberg
Google
#1095
Find in Mountain Array
Hard
array
NeetCode
Amazon
Bloomberg
Google
#157
Read N Characters Given Read4
Easy
array
WalkCCC
Apple
Google
Meta
#1810
Minimum Path Cost in a Hidden Grid
Medium
array
WalkCCC
Google
Meta
#1533
Find the Index of the Large Integer
Medium
array
WalkCCC
Amazon
#2782
Number of Unique Categories
Medium
union find
WalkCCC
Amazon
#702
Search in a Sorted Array of Unknown Size
Medium
array
WalkCCC
Google
#1237
Find Positive Integer Solution for a Given Equation
Medium
math
WalkCCC
Google
#1538
Guess the Majority in a Hidden Array
Medium
array
WalkCCC
Google
#1618
Maximum Font to Fit a Sentence in a Screen
Medium
array
WalkCCC
Google
#2728
Count Houses in a Circular Street
Easy
array
WalkCCC
Google
#2936
Number of Equal Numbers Blocks
Medium
array
WalkCCC
Google