List questions from spoj | MathQA

Help for solving quadratic residue.

Published on 25 Mar 2026 - 14:06

Fast way to find the sum of LCM of the given range of numbers?

Published on 22 Mar 2026 - 4:09

Winner in this game with divisors

Published on 24 Mar 2026 - 23:28

CHICKEGG chicks problem [spoj]

Published on 25 Mar 2026 - 7:09

Given n girls and boys how many ways are there to arrange them such that any two boys have atleast 'k' girls between them.

Published on 25 Mar 2026 - 15:58

Find an algorithm to compute $(1! \cdot 2! \cdot3!\cdots n! ) \,\%\, x$.

Published on 24 Mar 2026 - 23:01

Calculating Pisano periods for any integer

Published on 25 Mar 2026 - 14:36

Placing K knights in an nxn board such that no two attack each other

Published on 24 Mar 2026 - 17:24

Maximization with xor operator

Published on 25 Mar 2026 - 8:06

Number of divisors excluding set of primes S

Published on 25 Mar 2026 - 13:48

Factorial division using Pascal's triangle.

Published on 24 Mar 2026 - 19:15

How to calculate all the prime factors of $lcm$ of $n$ numbers?

Published on 25 Mar 2026 - 11:21