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	44:22
Largest Continuous Sequence Zero Sum	200		65:36
2 Sum	300	Amazon	48:57
4 Sum	325	Amazon	67:07
Valid Sudoku	325	Amazon	48:09
Diffk II	375		28:29

Key formation

Problem	Score	Companies	Time	Status
Anagrams	350	Amazon Goldman Sachs	46:15
Equal	350		68:54
Copy List	450	Amazon	53:07

Hashing two pointer

Problem	Score	Companies	Time	Status
Longest Substring Without Repeat	350	Amazon	50:02
Window String	350	Directi	75:44

Maths and hashing

Problem	Score	Companies	Time	Status
Fraction	450	Amazon	77:40
Points on the Straight Line	450	Amazon InMobi	72:39

Incremental hash

Problem	Score	Companies	Time	Status
Substring Concatenation	1000		68:36

Additional Practice

Problem	Score	Companies	Time	Status
Pairs With Given Xor	200	Flipkart	12:14
Subarray with given XOR	200	dunzo	34:31
Two out of Three	200	Booking.com	21:01
Subarray with B odd numbers	200	dunzo	36:02