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Level 2

Math

Important tutorials

1. Math Introduction
View Tutorial
2. Factorization
View Tutorial
3. Base Number System
View Tutorial
4. Unary Number System
View Tutorial
5. Binary Number System
View Tutorial
6. Base Conversions For Base N
View Tutorial

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Math Problems

Base conversion
Problem Score Companies Time Status
Excel Column Number 175 23:19
Excel Column Title 175 41:11
Digit op
Problem Score Companies Time Status
Palindrome Integer 200
HCL
17:28
Reverse integer 200 28:36
Next Smallest Palindrome! 400 52:03
Number encoding
Problem Score Companies Time Status
Next Similar Number 200 52:48
Rearrange Array 250
49:03
Array dp
Problem Score Companies Time Status
Numbers of length N and value less than K 200
89:45
Combinatorics
Problem Score Companies Time Status
City Tour 300
59:23
Grid Unique Paths 375 32:35

Additional Practice

Problem Score Companies Time Status
K-th Permutation 300 58:34
Divisible by 60 300 17:33
Powerful Divisors 300 47:00
Addition without Summation 200 12:02
Highest Score 300 28:55