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	43:15
Sum of pairwise Hamming Distance	200		63:31
FizzBuzz	200		12:28
Power Of Two Integers	250	Housing Amazon	39:27

Base conversion

Problem	Score	Companies	Time	Status
Excel Column Number	175	Amazon	23:19
Excel Column Title	175	Amazon	40:43

Digit op

Problem	Score	Companies	Time	Status
Palindrome Integer	200	HCL	17:28
Reverse integer	200	HCL Bloomberg	28:33

Number theory

Problem	Score	Companies	Time	Status
Greatest Common Divisor	200	NetApp	10:57
Trailing Zeros in Factorial	250	Jabong Zillow	18:55
Sorted Permutation Rank	250	Housing Zenefits	72:58
Largest Coprime Divisor	250		47:07
Sorted Permutation Rank with Repeats	500	Housing Zenefits	61:04

Array dp

Problem	Score	Companies	Time	Status
Numbers of length N and value less than K	200		83:51

Number encoding

Problem	Score	Companies	Time	Status
Rearrange Array	250		49:03

Combinatorics

Problem	Score	Companies	Time	Status
City Tour	300		53:22
Grid Unique Paths	375	Amazon Adobe	32:35