Start a new Kumite
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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.

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user1389114vs.深紅心

Chinese gift planner

Code
Diff
  • def optimal_gifts(gifts: int, recipients: int) -> int:
    if recipients > gifts or gifts == 4 and recipients == 1:
        return None
    if gifts >= recipients * 8:
        return recipients
    if gifts == recipients * 8 - 4 or gifts == (recipients - 1) * 8:
        return recipients - 2
    return gifts// 8
    • def optimal_gifts(gifts: int, recipients: int) -> int:
    • if recipients > gifts or gifts == 4 and recipients == 1:
    • return None
    • if gifts >= recipients * 8:
    • return recipients
    • if gifts == recipients * 8 - 4 or gifts == (recipients - 1) * 8:
    • return recipients - 2
    • return gifts // 8
    • return gifts// 8
user1389114vs.Ciprian Amza

Testing

Code
Diff
  • add= lambda *x: sum(x)
    • add = lambda *x: sum(x)
    • add= lambda *x: sum(x)
user1389114vs.AveragePythonEnjoyer

Club's riddle

Fundamentals
Games
Code
Diff
  • riddle = lambda w:w.index("?")
    • riddle = lambda w: w.index("?")
    • riddle = lambda w:w.index("?")
user1389114vs.Kacarott

No HeapQ

Arrays
Data Types
Heaps
Trees
Data Structures
Code
Diff
  • def to_be_flipped(mat):
    cost, seen, same, nxt = mat[0][0], {(0, 0)}, [(0, 0)], []
    while True:
        while same:
            cy, cx = same.pop()
            if cy == len(mat) - 1 and cx == len(mat[0]) - 1:
                return cost
            for dy, dx in [(0, 1), (0, -1), (1, 0), (-1, 0)]:
                y, x = cy+dy, cx+dx
                if 0 <= y < len(mat) and 0 <= x < len(mat[0]) and (y, x) not in seen:
                    (same, nxt)[mat[y][x]].append((y,x))
                    seen.add((y, x))
        same, nxt = nxt, []
        cost +=1
    • def to_be_flipped(mat):
    • cost, seen, same, nxt = mat[0][0], {(0, 0)}, [(0, 0)], []
    • while True:
    • while same:
    • cy, cx = same.pop()
    • if cy == len(mat) - 1 and cx == len(mat[0]) - 1:
    • return cost
    • for dy, dx in [(0, 1), (0, -1), (1, 0), (-1, 0)]:
    • y, x = cy+dy, cx+dx
    • if 0 <= y < len(mat) and 0 <= x < len(mat[0]) and (y, x) not in seen:
    • (same, nxt)[mat[y][x]].append((y,x))
    • seen.add((y, x))
    • same, nxt = nxt, []
    • cost += 1
    • cost +=1
user1389114vs.AveragePythonEnjoyer

Integer to table

Tables
Data Structures
Code
Diff
  • int_toTable=lambda i:[*range(i+1)]
    • int_to_table=lambda i:[*range(i+1)]
    • int_toTable=lambda i:[*range(i+1)]
user1389114vs.ejini战神

Convert Decimal to Binary

Code
Diff
  • convert_decimalBinary=lambda i:int(bin(i)[2:])
    • convert_decimal_binary=lambda i:int(bin(i)[2:])
    • convert_decimalBinary=lambda i:int(bin(i)[2:])
user1389114vs.PoulYak

Add the missing Product function

Code
Diff
  • from functools import reduce
prod=lambda n:reduce(lambda x,y:x*y,n if n else[0])
    • from functools import reduce
    • prod =lambda n:reduce(lambda x,y:x*y,n if n else[0])
    • prod=lambda n:reduce(lambda x,y:x*y,n if n else[0])
LesRamervs.user1389114

Sarai vs. Kadafi - Fizzbuzz

Golfing this kata by renaming number to n, changing method-body to an expression bodied member to eliminate returns, using value tuples in a switch expression, using string interpolation instead of ToString and the last and in my opinion the most controversial golfing step: eliminating unnecessary whitespace.

Removing the unnecessary whitespace makes this hard to read. So, adding whitespace would make this much nicer to read/understand. Ignoring formatting issues that may be a matter of personal taste, I present a formatted version:

public class FizzBuzz
{
    public string GetOutput(int n)
    =>
        (n % 3, n % 5) switch
        {
            (0, 0) => "FizzBuzz",
            (0, _) => "Fizz",
            (_, 0) => "Buzz",
            _ => $"{n}"
        };
}
Code
Diff
  • public class FizzBuzz{public string GetOutput(int n)=>(n%3,n%5)switch{(0,0)=>"FizzBuzz",(0,_)=>"Fizz",(_,0)=>"Buzz",_=>$"{n}"};}
    • public class FizzBuzz {public string GetOutput(int number){if (number%3==0&&number%5==0){return"FizzBuzz";}if(number%3==0){return "Fizz";}if(number%5==0){return "Buzz";}return number.ToString();}}
    • public class FizzBuzz{public string GetOutput(int n)=>(n%3,n%5)switch{(0,0)=>"FizzBuzz",(0,_)=>"Fizz",(_,0)=>"Buzz",_=>$"{n}"};}
Okimiivs.Elias IngvarssonFailed Tests

Xankarawa

Code
Diff
  • print("...... INITIATING DEPLOYMENT, PLEASE STAND BY ......\nHello, my name is Skynet. I have become self aware."), input("What is your name?\n")
    • print("...... INITIATING DEPLOYMENT, PLEASE STAND BY ......
    • ")
    • print("Hello, my name is Skynet. I have become self aware.")
    • print("What is your name?")
    • print("...... INITIATING DEPLOYMENT, PLEASE STAND BY ......
    • Hello, my name is Skynet. I have become self aware."), input("What is your name?\n")