Level 2

Math

TUTORIALS

1. Math Introduction

2. Factorization

3. Base Number System

4. Unary Number System

5. Binary Number System

6. Base Conversions For Base N

Primers

Examples

Binary Representation

Math Problems

Adhoc

Problem	Score	Companies	Time	Status
Prime Sum	150	Epic systems	42:08
Sum of pairwise Hamming Distance	200		56:19
FizzBuzz	200		11:56
Power Of Two Integers	250	Housing Amazon	37:55

Base conversion

Problem	Score	Companies	Time	Status
Excel Column Number	175	Amazon	23:04
Excel Column Title	175	Amazon	38:54

Digit op

Problem	Score	Companies	Time	Status
Palindrome Integer	200	HCL	17:19
Reverse integer	200	HCL Bloomberg	27:43

Number theory

Problem	Score	Companies	Time	Status
Greatest Common Divisor	200	NetApp	10:50
Trailing Zeros in Factorial	250	Jabong Zillow	18:14
Sorted Permutation Rank	250	Housing Zenefits	66:28
Largest Coprime Divisor	250		43:52
Sorted Permutation Rank with Repeats	500	Housing Zenefits	66:05

Array dp

Problem	Score	Companies	Time	Status
Numbers of length N and value less than K	200		81:17

Number encoding

Problem	Score	Companies	Time	Status
Rearrange Array	250		47:53

Combinatorics

Problem	Score	Companies	Time	Status
Grid Unique Paths	375	Amazon Adobe	31:59