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56 problems total

Array (1906)Sorting (442)Depth First Search (316)Database (301)Breadth First Search (241)Tree (241)Stack (172)Graph Theory (169)Linked List (81)Monotonic Stack (67)Queue (50)Recursion (48)Shortest Path (33)

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Title	Difficulty	Videos	Companies
Add one to a number without using plus or minus sign	easy	-
Add Two Numbers represented as Linked List	medium	-
Calculate the Binomial Coefficient	medium	-
Count of Pairs of Squares Summing to N Squared	easy	-
Count the divisors of a given number	easy	-
Count the number of 2s between 0 and n	hard	-
Extended Euclidean Algorithm using modulo operator	medium	-
Fast way to multiply a number by 7	easy	-
Find all prime factors of given number	medium	-
Find all unique combinations of factors for given number	medium	-
Find GCD of n numbers	easy	-	amazon
Find GCD of two numbers	medium	-
Find LCM of two numbers	easy	-
Fisher-Yates Shuffle	medium	-	facebook
Implement Arithematic Operators Using Bit Manipulation	medium	-
Karatsuba Fast Multiplication	medium	-
Matrix Chain Multiplication	medium	-
Matrix Chain Multiplication 2 - Print brackets	medium	-
Maximum Product of Two Elements in an Array	easy	-
Next Smallest Palindrome Larger Than a Number	medium	-
Nth Number with sum of digits as 10	easy	-	microsoft
Number of cells in multiplication table containing X	medium	-	apple
Prime numbers up to n	easy	-
Reservoir Sampling Explained	medium	-	facebook
Sieve of Eratosthenes Algorithm	easy	-	square
Smallest Integer Having At Least N Divisors	hard	-
Strassen Matrix Multiplication Algorithm	medium	-
Subtract Two Numbers Without Using Arithematic Operators	easy	-
Count and Say Sequence	medium	-	adobe amazon apple
Multiply Strings	medium	-	amazon apple expedia
Plus One 1 - Given number as array plus one	easy	-	adobe amazon apple
Add Binary Strings	easy	-	adobe amazon apple
Pascal’s Triangle 1 - Generate first n rows	easy	-	adobe amazon apple
Pascal’s Triangle 2 - Return nth row	easy	-	amazon goldman-sachs google
Largest Number From Given Numbers	medium		amazon apple bytedance
Rotate an Array to Right	medium	-	amazon bloomberg cisco
Basic Calculator 1	hard	-	adobe amazon bloomberg
Basic Calculator 2 Problem	medium	-	airbnb amazon apple
Add Digits in Number	easy	-	adobe apple bloomberg
Ugly Number	easy		facebook
Least Number of Perfect Squares that Sums to n	medium	-	adobe amazon apple
Largest Divisible Subset	medium	-	adobe amazon google
Valid Perfect Square	easy	-	amazon facebook google
Plus One 2 - Given number as Linked List plus one	medium	-	amazon google
Arranging Coins	easy	-	amazon godaddy
Perfect number	easy	-	amazon fallible
Sum of Square Numbers	medium		linkedin
Basic Calculator 4	hard	-	amazon google indeed
Basic Calculator 3	hard	-	amazon apple bytedance
Magic Squares In Grid	medium		google wayfair

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