Kumite

Start a new Kumite

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.

puehutalovs.AgressiveCat

Numbers Divided by 2

Code

Diff

def devTwo(n, mod = False):
    return n // 2 if mod else n / 2

- unsigned long long div2(unsigned long long a){
- ~~//Use binary operators...I-O~~
- ~~return a >> 1;~~
- }
- def devTwo(n, mod = False):
- return n // 2 if mod else n / 2

Test Cases

Diff

test.assert_equals(devTwo(5), 2.5)
test.assert_equals(devTwo(5, 1), 2)

- // TODO: Replace examples and use TDD by writing your own tests
- ~~Describe(d2)~~
- {
- ~~It(under10)~~
- {
- ~~Assert::That(div2(10), Equals(5));~~
- Assert::That(div2(0), Equals(0));
- ~~Assert::That(div2(3), Equals(1));~~
- }
- ~~It(huge_numbers)~~
- {
- Assert::That(div2(65536), Equals(32768));
- ~~Assert::That(div2(6553665535), Equals(3276832767));~~
- ~~Assert::That(div2(1234567890), Equals(617283945));~~
- }
- };
- test.assert_equals(devTwo(5), 2.5)
- test.assert_equals(devTwo(5, 1), 2)

Windows98vs.elpidio.neto

This number is even or odd?

Code

Diff

def even_or_odd(number):
    l={0:"Even",1:"Odd"}
    return l[number%2]

- def even_or_odd(number):
- ~~#good luck~~
- l={0:"Even",1:"Odd"}
- return l[number%2]

cyberninja2004vs.Roua99

double value

Code

Diff

#include<iostream>

int doubleValue(int x) {
    return x/0.5;
}

- #include<iostream>
- int doubleValue(int x) {
- ~~return x * 2;~~
- return x/0.5;
- }

KxAy-botvs.Axew

Failed Tests

C++ Simple Calculator

#include
using namespace std;

int faiAddizione(int x, int y);
int faiSottrazione(int x, int y);
int faiMoltiplicazione(int x, int y);
int faiDivisione(int x, int y);
int faiModulus(int x, int y);

string die() {
return "Invalid Input!";
}

string Calculator(int choice, int x, int y) {
cout << "Welcome to simple calculator!\n";
cout << "1. Addition\n2. Subtraction\n3. Multiplication\n4. Division\n5. Modulus\n";
// YOU: Write code to finish this program (Input is given, don't use cin)

switch(choice){
    case 1 : cout << faiAddizione(x, y);
      break;
    case 2 : cout << faiSottrazione(x, y);
      break;
    case 3 : cout << faiMoltiplicazione(x, y);
      break;
    case 4 : cout << faiDivisione(x, y);
      break;
    case 5 : cout << faiModulus(x,y);
      break;
    default : die();
}

// Instead of cout << x + y << endl; for example, do return (x + y);
// You can call the die function with die();

}

int faiAddizione(int x, int y)
{ return (x + y);

}

int faiSottrazione(int x, int y){
return (x - y);

}

int faiDivisione(int x, int y){
if(y != 0){
return (x/y);
}
else
{
die();
return 0;
}
}

int faiMoltiplicazione(int x, int y){
return (x * y);
}

int faiModulus(int x, int y){
return (x % y);
}

Code

Diff

#include <iostream>
using namespace std;

int faiAddizione(int x, int y);
int faiSottrazione(int x, int y);
int faiMoltiplicazione(int x, int y);
int faiDivisione(int x, int y);
int faiModulus(int x, int y);  


string die() {
  return "Invalid Input!";
}

string Calculator(int choice, int x, int y) {
    cout << "Welcome to simple calculator!\n";
    cout << "1. Addition\n2. Subtraction\n3. Multiplication\n4. Division\n5. Modulus\n";
    // YOU: Write code to finish this program (Input is given, don't use cin)
    
    switch(choice){
        case 1 : cout << faiAddizione(x, y);
          break;
        case 2 : cout << faiSottrazione(x, y);
          break;
        case 3 : cout << faiMoltiplicazione(x, y);
          break;
        case 4 : cout << faiDivisione(x, y);
          break;
        case 5 : cout << faiModulus(x,y);
          break;
        default : return die();
            break;
    }
}  


int faiAddizione(int x, int y)
  { return (x + y);
  
}

int faiSottrazione(int x, int y){
  return (x - y);
  
}

  
  int faiDivisione(int x, int y){
  if(y != 0){
    return (x/y);
  }
  else
  {
    die();
    return 0;
  }
}

  
  int faiMoltiplicazione(int x, int y){
  return (x * y); 
}

  
  int faiModulus(int x, int y){
  return (x % y);
}

- #include <iostream>
- using namespace std;
- int faiAddizione(int x, int y);
- int faiSottrazione(int x, int y);
- int faiMoltiplicazione(int x, int y);
- int faiDivisione(int x, int y);
- int faiModulus(int x, int y);
- string die() {
- return "Invalid Input!";
- }
- string Calculator(int choice, int x, int y) {
- cout << "Welcome to simple calculator!\n";
- cout << "1. Addition\n2. Subtraction\n3. Multiplication\n4. Division\n5. Modulus\n";
- // YOU: Write code to finish this program (Input is given, don't use cin)
- // Instead of cout << x + y << endl; for example, do return (x + y);
- // You can call the die function with die();
- }
- switch(choice){
- case 1 : cout << faiAddizione(x, y);
- break;
- case 2 : cout << faiSottrazione(x, y);
- break;
- case 3 : cout << faiMoltiplicazione(x, y);
- break;
- case 4 : cout << faiDivisione(x, y);
- break;
- case 5 : cout << faiModulus(x,y);
- break;
- default : return die();
- break;
- }
- }
- int faiAddizione(int x, int y)
- { return (x + y);
- }
- int faiSottrazione(int x, int y){
- return (x - y);
- }
- int faiDivisione(int x, int y){
- if(y != 0){
- return (x/y);
- }
- else
- {
- die();
- return 0;
- }
- }
- int faiMoltiplicazione(int x, int y){
- return (x * y);
- }
- int faiModulus(int x, int y){
- return (x % y);
- }

MicSawvs.Imunsure

XasanboyAb's Kumite #3

Code

Diff

```
var Greet = () => "Hello World!"
 
```
- function Greet(){return "Hello World!"}
- var Greet = () => "Hello World!"

JonathanP4vs.user2168756

hyhyhyhyy's Kumite #2

Code

Diff

for(let i = 0; i < 10; i++) console.log("Matthew is gay");

- ~~var b = 5;~~
- ~~var a = 6;~~
- ~~do {~~
- ~~console.log("Matthew is gay");~~
- ~~a++;~~
- ~~} while(a<16);~~
- for(let i = 0; i < 10; i++) console.log("Matthew is gay");

Test Cases

Diff

// Since Node 10, we're using Mocha.
// You can use `chai` for assertions.
const chai = require("chai");
const assert = chai.assert;
// Uncomment the following line to disable truncating failure messages for deep equals, do:
// chai.config.truncateThreshold = 0;
// Since Node 12, we no longer include assertions from our deprecated custom test framework by default.
// Uncomment the following to use the old assertions:
// const Test = require("@codewars/test-compat");

describe("Solution", function() {
  it("should test for something", function() {
    // Test.assertEquals(1 + 1, 2);
    // assert.strictEqual(1 + 1, 2);
  });
});

- // Since Node 10, we're using Mocha.
- // You can use `chai` for assertions.
- const chai = require("chai");
- const assert = chai.assert;
- // Uncomment the following line to disable truncating failure messages for deep equals, do:
- // chai.config.truncateThreshold = 0;
- // Since Node 12, we no longer include assertions from our deprecated custom test framework by default.
- // Uncomment the following to use the old assertions:
- // const Test = require("@codewars/test-compat");
- describe("Solution", function() {
- it("should test for something", function() {
- // Test.assertEquals(1 + 1, 2);
- // assert.strictEqual(1 + 1, 2);
- });
- });

MonochromeTRvs.Innoky

TT-test

Code

Diff

print("Hello ", "word") #p fix the cde dumbfuck

- ~~print("Hello", "word") #p fix the cde dumbfuck~~
- print("Hello ", "word") #p fix the cde dumbfuck

Kennehcodesvs.jMen911

Factorial In Javascript

Simplified prior code.

Code

Diff

function factorial (n) {
  return (n !== 0 && n !== 1) ? (n * factorial(n - 1)) : 1 
}

- function factorial (n) {
- ~~if (n === 0 || n === 1) {~~
- ~~return 1;~~
- ~~} else {~~
- return n * factorial(n - 1);
- }
- return (n !== 0 && n !== 1) ? (n * factorial(n - 1)) : 1
- }

rookieCookievs.kellda

Flip the number

Code

Diff

fn flip_the_number(x: &u64) -> u64 {
    x.to_string().chars().rev().collect::<String>().parse().unwrap()
}

- fn flip_the_number(x: &u64) -> u64 {
- ~~let mut x = *x;~~
- ~~let mut y = 0;~~
- ~~while x != 0 {~~
- ~~y = y * 10 + x % 10;~~
- ~~x /= 10;~~
- }
- y
- x.to_string().chars().rev().collect::<String>().parse().unwrap()
- }

dmitrii_snozikvs.Pavlo Skalozub

Volume of the cube

Code

Diff

def kube(x, y, z):
    #your code here
    return x*y*z

- def kube(x, y, z):
- #your code here
- ~~return 0~~
- return x*y*z

Freestyle Sparring

Numbers Divided by 2

This number is even or odd?

double value

C++ Simple Calculator

XasanboyAb's Kumite #3

hyhyhyhyy's Kumite #2

TT-test

Factorial In Javascript

Flip the number

Volume of the cube

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Freestyle Sparring

Confirm

Collect: kata

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