Start a new Kumite
AllAgda (Beta)BF (Beta)CCFML (Beta)ClojureCOBOL (Beta)CoffeeScriptCommonLisp (Beta)CoqC++CrystalC#D (Beta)DartElixirElm (Beta)Erlang (Beta)Factor (Beta)Forth (Beta)Fortran (Beta)F#GoGroovyHaskellHaxe (Beta)Idris (Beta)JavaJavaScriptJulia (Beta)Kotlinλ Calculus (Beta)LeanLuaNASMNim (Beta)Objective-C (Beta)OCaml (Beta)Pascal (Beta)Perl (Beta)PHPPowerShell (Beta)Prolog (Beta)PureScript (Beta)PythonR (Beta)RacketRaku (Beta)Reason (Beta)RISC-V (Beta)RubyRustScalaShellSolidity (Beta)SQLSwiftTypeScriptVB (Beta)
Show only mine

Kumite (ko͞omiˌtā) is the practice of taking techniques learned from Kata and applying them through the act of freestyle sparring.

You can create a new kumite by providing some initial code and optionally some test cases. From there other warriors can spar with you, by enhancing, refactoring and translating your code. There is no limit to how many warriors you can spar with.

A great use for kumite is to begin an idea for a kata as one. You can collaborate with other code warriors until you have it right, then you can convert it to a kata.

Ad
Ad
pearcebasmanmvs.akar-0

Different values for square roots of big numbers with the same code

Code
Diff
  • fn isqrt(n: u64) -> u64 {
    (n as f64).sqrt() as u64
}
    • module solution;
    • import std.math : sqrt;
    • import std.stdio: writefln;
    • export long isqrt(ulong n)
    • {
    • writefln("n: %d", n);
    • return cast(ulong) sqrt(cast(double) n);
    • fn isqrt(n: u64) -> u64 {
    • (n as f64).sqrt() as u64
    • }
ManthanCodesvs.danrosherFailed Tests

Armstrong Numbers

Code
Diff
  • import java.util.Scanner;
class Fibonacci
{
    public static void main(String args[])
    {
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter the number of Iterations:");
        int n = sc.nextInt();
        int a = 0;
        int b = 1;
        System.out.println(a);
        System.out.println(b);
        for(int i = 1;i <=n; i++)
        {
            int c = a + b;
            System.out.println(c);
            a=b;
            b=c;
        }
    }
}
    • import java.util.HashMap;
    • import java.util.Map;
    • public class Fibonacci {
    • public static long calcFib(int n,int a,int b){
    • return n == 1 ? a : calcFib(n-1,b,a+b);
    • }
    • public static long calcFibo(int n) {
    • return calcFib(n,1,1);
    • }
    • import java.util.Scanner;
    • class Fibonacci
    • {
    • public static void main(String args[])
    • {
    • Scanner sc = new Scanner(System.in);
    • System.out.println("Enter the number of Iterations:");
    • int n = sc.nextInt();
    • int a = 0;
    • int b = 1;
    • System.out.println(a);
    • System.out.println(b);
    • for(int i = 1;i <=n; i++)
    • {
    • int c = a + b;
    • System.out.println(c);
    • a=b;
    • b=c;
    • }
    • }
    • }
pearcebasmanmvs.Saka7

CoffeeScript: Classes Example

Code
Diff
  • struct Person {
    name: String,
    age: u32,
}

impl Person {
    fn new(name: String, age: u32) -> Self {
        Self { name, age }
    }
    
    fn to_string(&self) -> String {
        format!("{} is {} years old", self.name, self.age)
    }
}

struct Developer {
    inner: Person,
    skills: Vec<String>
}

impl Developer {
    fn new(name: String, age: u32, skills: Vec<String>) -> Self {
        Self { inner: Person::new(name, age), skills }
    }
    
    fn to_string(&self) -> String {
        format!("{} and has {} skills", self.inner.to_string(), self.skills.join(" and "))
    }
}
    • class Person
    • constructor: (@name, @age) ->
    • toString: -> "#{@name} is #{@age} years old"
    • class Developer extends Person
    • constructor: (name, age, @skills) -> super(name, age)
    • toString: -> super.toString() + " and has #{@skills} skills"
    • jack = new Developer("Jack", 20, ['CoffeeScript', 'JavaScript'])
    • console.log jack.toString()
    • struct Person {
    • name: String,
    • age: u32,
    • }
    • impl Person {
    • fn new(name: String, age: u32) -> Self {
    • Self { name, age }
    • }
    • fn to_string(&self) -> String {
    • format!("{} is {} years old", self.name, self.age)
    • }
    • }
    • struct Developer {
    • inner: Person,
    • skills: Vec<String>
    • }
    • impl Developer {
    • fn new(name: String, age: u32, skills: Vec<String>) -> Self {
    • Self { inner: Person::new(name, age), skills }
    • }
    • fn to_string(&self) -> String {
    • format!("{} and has {} skills", self.inner.to_string(), self.skills.join(" and "))
    • }
    • }
tetra-codervs.birbant

cool code

more tests and more edge case testing lol

Code
Diff
  • def you_are_cool(n):
    if not isinstance(n, str):
        return "Wait, so your name ISN'T a string of text?! That's wild!"
    elif n.strip() == "":
        return "There is no name, so I'm not complimenting you. LOL"
    elif len(n.strip()) > 100:
        return "Man, you have an insanely long name! Do people call you by your full name or just a nickname?"
    elif n.strip().isdigit():
        return "Are you sure? That looks like a number. Unless you're secretly a robot with a numerical name!"
    else:
        return "Hello " + n.strip() + ", you are very cool!"
    
# edge case go BRRR
    • def your_name(n="Taki"):
    • return f"Hello {n}, you are very kool!"
    • def you_are_cool(n):
    • if not isinstance(n, str):
    • return "Wait, so your name ISN'T a string of text?! That's wild!"
    • elif n.strip() == "":
    • return "There is no name, so I'm not complimenting you. LOL"
    • elif len(n.strip()) > 100:
    • return "Man, you have an insanely long name! Do people call you by your full name or just a nickname?"
    • elif n.strip().isdigit():
    • return "Are you sure? That looks like a number. Unless you're secretly a robot with a numerical name!"
    • else:
    • return "Hello " + n.strip() + ", you are very cool!"
    • # edge case go BRRR
rowcasedvs.Mateo-Wallace

0 and 1 test case

Code
Diff
  • helloWorld

    =_=>

        _?`Hello World baby`:`No World`
    • /*def hello_world(world):
    • if world == True:
    • return "Hello World baby"
    • elif world == False:
    • return "No World"*/
    • helloWorld
    • // helloWorld = (world) => world == true ? 'Hello World baby': 'No World';
    • =_=>
    • const helloWorld=(world)=>world==true?`Hello World baby`:`No World`;
    • _?`Hello World baby`:`No World`
richsitevs.39918730

Reverse strings but python now

Fundamentals
Strings
Code
Diff
  • reverse_string = lambda string: "".join(reversed(string))
    • reverse_string = lambda string: string[::-1]
    • reverse_string = lambda string: "".join(reversed(string))
rowcasedvs.rowcased

Fix the code

Code
Diff
  • prod = __import__('math').prod
    • from math import prod as p
    • prod = lambda a: p(a)
    • prod = __import__('math').prod