codewars | Code Wars Katas ( code in Ruby , Python , Javascript , C | SQL Database library

Write a program to print the sum of all the elements of an array of size N where N can be any integer between 1 and 100. (1 \le N \le 100)

Instructions:

You have to take input variable N denoting the number of elements of the array. Then you have to Input the elements of an array in a single line. We have provided the code to get the input for the array elements. You have to write the logic to add the array elements. Print the sum. Sample input Sample output 3 1 2 3 6 Explanation of Sample I/O

N = 3 Array = 1 2 3

1 + 2 + 3 = 6

I’ve solved a C# beginner Kata on Codewars, asking to return a string[] with only 4-character names. I used a list that is filled in an if statement and then converted back to a string and returned.

My question is regarding the best practice solution below, which is presented later.

I understand that the same string[] that comes as an argument is refilled with elements and returned. But how does the program know that each element of the array is called “name”, as it’s never mentioned before?

Does linq know that a variable with a singular name is an element of a plural name group, here “names”?

Thanks for helping out!

Why does it give me IndexError: list index out of range in line 28 if (cells[y][x] % TOP == 0 ?

If i remove if __name__ == '__main__': everything works perfectly.

Count Connectivity Components is a Kata on codewars, if interested.

I have been really stuck on this codewars challenge: https://www.codewars.com/kata/515de9ae9dcfc28eb6000001/train/php. I feel like I am very close, but I am not sure what I am doing wrong at this point. Here is my code so far:

I was solving a CodeWars task and faced a problem.

In it you are given the array of numbers, which length is a multiple of 4, you need to visualise it as a (x1^2 + x2^2) * (x3^2 + x4^2) .... * (xn^2 + xn+1^2).

Calculate the result of this and find 2 numbers, which squares in sum, gives the result of initial sequance. For example, you are given an array of ( 2, 1, 3, 4): (2^2 + 1^2) * (3^2 + 4^2) = 125;

2 numbers, which squares in sum will give 125, is 2 and 11 because 4 + 121 = 125;

I wrote the code and it works with most of examples, but when i use big arrays such as (3, 9, 8, 4, 6, 8, 7, 8, 4, 8, 5, 6, 6, 4, 4, 5) in result i receive (0,0);

I can't get the problem, help me pls and if u can use simplified english cause i am from Russia. Here is my code:

The site codewars.com has a task "Sum of intervals". https://www.codewars.com/kata/52b7ed099cdc285c300001cd

The bottom line is to find the sum of the intervals, taking into account the overlap. For example:

I'm writing my first proper project in python outside of CodeWars katas and problem exercises in my book, and it is designed to calculate the total weekly volume per muscle group of an exercise program.

What I have written is a large dictionary called bodypart where key = exercise name (i.e. bench press) and value = primary muscle group (i.e. chest).

The program then asks users to enter an exercise and number of sets with the following code:

I'm trying to add a custom method to the String class in JavaScript called toAlternatingCase, it will turn lowercase characters into uppercase and vice versa in the string that is called on, I'm trying to make it like the built-in toUpperCase/toLowerCase methods which don't take any arguments. this is a kata(challenge) on codewars.