How-to articles, tricks, and solutions about ALGORITHM

To find the maximum value in an array of primitives in Java, you can use the Arrays.stream() method to create a stream from the array, and then use the Stream.max() method to find the maximum element in the stream. Here is an example of how to do this for

To generate all permutations of a given string in Java, you can use a recursive approach.

In PHP, you can group an array of arrays (subarrays) by the value of a specific key in each subarray using the array_reduce() function.

You can use the itertools.permutations() function to generate all permutations of a list in Python.

There are a few ways to remove duplicates from a list in Python.