@eyasir2047

Abrar Eyasir

@eyasir2047Joined April 2024

Student, Instructor & Youtuber. Trying to be an entrepreneur

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AEAbrar Eyasireyasir2047.hashnode.devApr 21, 2025 · 2 min read

Permutation of a String

When dealing with permutations of a string, one common issue arises: duplicates. For example, with input like "AAB", the total number of permutations would be 6 (3!), but many of them would be repeated. We aim to generate all unique permutations in l...

AEAbrar Eyasireyasir2047.hashnode.devJul 2, 2024 · 1 min read

Number of Divisors Using Prime Factorization

Question: Given a positive integer n, we must find the total number of divisors for n. Let d( n ) be the number of divisors for the natural number, n. We begin by writing the number as a product of prime factors: n = p^a* q^b* r ^c … then the number ...

AEAbrar Eyasireyasir2047.hashnode.devApr 11, 2024 · 7 min read

Everything I know about Competitive Programming

Competitive programming, also known as CP, is a mind game. There will be given a problem statement, some inputs, and their outputs with additional constraints like time and space constraints. You have to solve this problem efficiently. If your coder ...

Abrar Eyasir

About

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Abrar Eyasir's blogs

Recently published

Permutation of a String

Number of Divisors Using Prime Factorization

Everything I know about Competitive Programming

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Abrar Eyasir

About

Available for

Abrar Eyasir's blogs

Recently published

Permutation of a String

Number of Divisors Using Prime Factorization

Everything I know about Competitive Programming