What is the maximum value of $$$a + b$$$ when $$$a \cdot b = x$$$?

To be updated

Check which direction is optimal for the next 2 steps and why?

• 2 times Right?

• 2 times Down?

• 1 time Right and 1 time Down?

• 1 time Down 1 time Right?

To be updated

What are the numbers with the odd number of divisors?

How many numbers with the odd number of divisors can be there in the range $$$2 \cdot 10^5$$$?

Try using prefix $$$\operatorname{XOR}$$$, iterating through all such numbers.

To be updated

For a particular size, how to check if there's a cube greater than that?

Try Binary search on side length.

Let $$$x$$$ be the side length. How to check if a square has all its elements $$$\geq x$$$ in $$$O(1)$$$?

To be updated

To be updated

Can you find the number of edges for each possible $$$GCD$$$?

Did you try Greedy?

To be updated

To be updated