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Number Theory
78 problems
Algorithms pattern questions across top companies
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questions
#1799
Maximize Score After N Operations
Hard
array
WalkCCC
Groww
Sprinklr
#2117
Abbreviating the Product of a Range
Hard
math
WalkCCC
Avalara
#2470
Number of Subarrays With LCM Equal to K
Medium
array
WalkCCC
Amazon
Google
Unity
#2584
Split the Array to Make Coprime Products
Hard
array
WalkCCC
Zomato
#3012
Minimize Length of Array Using Operations
Medium
array
WalkCCC
BNY Mellon
Oracle
#3334
Find the Maximum Factor Score of Array
Medium
array
WalkCCC
Info Edge
#3629
Minimum Jumps to Reach End via Prime Teleportation
Medium
array
WalkCCC
Amazon
Google
Meta
#1819
Number of Different Subsequences GCDs
Hard
array
WalkCCC
Akuna Capital
Infosys
Meta
#1994
The Number of Good Subsets
Hard
array
WalkCCC
Lowe's
Media.net
#1492
The kth Factor of n
Medium
math
WalkCCC
Amazon
Expedia
Google
#1250
Check If It Is a Good Array
Hard
array
WalkCCC
American Express
Dropbox
Google
#3348
Smallest Divisible Digit Product II
Hard
math
WalkCCC
Accenture
Amazon
Google
#3715
Sum of Perfect Square Ancestors
Hard
array
WalkCCC
Amazon
Google
Meesho
#3953
Maximum Score with Co-Prime Element
Hard
array
WalkCCC
Atlassian
ServiceNow
#2543
Check if Point Is Reachable
Hard
math
WalkCCC
PhonePe
#1201
Ugly Number III
Medium
math
WalkCCC
Amazon
American Express
#2572
Count the Number of Square-Free Subsets
Medium
array
WalkCCC
Google
Media.net
#258
Add Digits
Easy
math
WalkCCC
Adobe
Amazon
Bloomberg
#2183
Count Array Pairs Divisible by K
Hard
array
WalkCCC
Amazon
PayPal
Qualcomm
#3336
Find the Number of Subsequences With Equal GCD
Hard
array
WalkCCC
Amazon
Bloomberg
Google
#204
Count Primes
Medium
array
WalkCCC
Accenture
Amazon
Apple
#3901
Good Subsequence Queries
Hard
array
WalkCCC
Amazon
Infosys
#2867
Count Valid Paths in a Tree
Hard
math
WalkCCC
Gameskraft
#2338
Count the Number of Ideal Arrays
Hard
math
WalkCCC
Amazon
Google
Infosys
#3671
Sum of Beautiful Subsequences
Hard
array
WalkCCC
Google
Infosys
#3984
Divisible Game
Medium
array
WalkCCC
Infosys
#2523
Closest Prime Numbers in Range
Medium
math
WalkCCC
Amazon
Bloomberg
Meta
#2607
Make K-Subarray Sums Equal
Medium
array
WalkCCC
Amazon
Bloomberg
Morgan Stanley
#2992
Number of Self-Divisible Permutations
Medium
array
WalkCCC
Salesforce
#2221
Find Triangular Sum of an Array
Medium
array
WalkCCC
Amazon
DE Shaw
Google
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