Level 5

Hashing

TUTORIALS

1. Introduction To Hashing

2. Hash Tables

3. Hash Functions

4. Hashing Implementation Details

Hashing Problems

Hash search

Problem	Score	Companies	Time	Status
Colorful Number	150	Epic systems	43:13
Largest Continuous Sequence Zero Sum	200		64:02
2 Sum	300	Amazon	48:02
4 Sum	325	Amazon	64:38
Valid Sudoku	325	Amazon	46:47
Diffk II	375		27:50

Key formation

Problem	Score	Companies	Time	Status
Anagrams	350	Amazon Goldman Sachs	45:13
Equal	350		66:43
Copy List	450	Amazon	51:22

Hashing two pointer

Problem	Score	Companies	Time	Status
Longest Substring Without Repeat	350	Amazon	48:56
Window String	350	Directi	72:47

Maths and hashing

Problem	Score	Companies	Time	Status
Fraction	450	Amazon	75:13
Points on the Straight Line	450	Amazon InMobi	70:01

Incremental hash

Problem	Score	Companies	Time	Status
Substring Concatenation	1000		67:13