key is a function that will be called to transform the collection’s items before they are compared. The parameter passed to key must be something that is callable. The use of lambda creates an anonymous function (which is callable). In the case of sorted the callable only takes one parameters. Python’s lambda is pretty simple. It can only do and return one thing really. … Read more
In one line, using a lambda: Passing a function to list.sort:
Is there any library function available in C standard library to do sort?
Use On Python 2.x, the sorted function takes its arguments in this order: so without the key=, the function you pass in will be considered a cmp function which takes 2 arguments.
There’s ▲: ▲ and ▼: ▼
A sorting algorithm is said to be stable if two objects with equal keys appear in the same order in sorted output as they appear in the input array to be sorted. Some sorting algorithms are stable by nature like Insertion sort, Merge Sort, Bubble Sort, etc. And some sorting algorithms are not, like Heap Sort, Quick … Read more
How do you find the median of a list in Python? The list can be of any size and the numbers are not guaranteed to be in any particular order. If the list contains an even number of elements, the function should return the average of the middle two. Here are some examples (sorted for … Read more
The easiest way I can think of is to use Linq:
Your consideration is wrong. The value of r does not change, since it is given as value to the Quicksort function(not a reference). You handle the ranges with p,q such that p is the first index in the range and q the first index not in the range. Thus, your calls were wrong: Here is the complete example. I used std::swap to change elements and ans std::vector … Read more
That will do what you want. Remember to import Collections though!