C++: Find the XOR of a closed interval of the arrayI've worked out a solution, but it's not efficient. Could someone optimize my solution, using prefix...

How to calculate XOR on a given interval of numbersFor example, you're given the interval 5 15 17 90. How to calculate the XOR of it?

A problem involving divisorsThere are two numbers written on a board, A and B. If A and B are divisible by P, where P is a certa...

GCD of n numbersThe built-in function doesn't seem to solve the problem :( Also, it is not graded by a human. If the...

GCD of n numbersThe program is supposed to display the GCD of n numbers. I managed to work out the solution, but in ...

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