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NEWBEDEV
Python
Javascript
Linux
Cheat sheet
NEWBEDEV
Python
Javascript
Linux
Cheat sheet
New posts in Problem Solving
probability of guessing a k-digit number sequentially from n trials
May 10, 2021
Hard problems solving tricks
May 10, 2021
Given a finite number of stones. We place every stone on an integer. Prove that, given different movements, we can only make finite number of moves
May 10, 2021
Let $a = \frac{1 + \sqrt{2009}}{2}$ . Find the value of $(a^3 - 503a - 500)^5$ .
May 10, 2021
If $m,n\in N$ Prove that there is such a positive integer k, such that $(\sqrt{m}+\sqrt{m+1})^n=\sqrt{k}+\sqrt{k+1}$
May 10, 2021
A square appears randomly within a square of ten time its area. What is probability that the smaller square contains the larger square's center?
May 10, 2021
The difference between the HCF and LCM of $x$ and $18$ is $120$. Find $x$.
May 10, 2021
Calculating the number of integers divisible by 8
May 10, 2021
If $m$ and $n$ are reversed numbers (like $123$ and $321$) and $m * n = 1446921630$ , find $(m+n)$.
May 09, 2021
Number of possible states on a $6\times 6$ grid
May 09, 2021
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