bcowell

let J = "aA", S = "aAAbbbb"
let X = "z", Y = "ZZ";

const numJewelsInStones = (J, S) => {
    return [...S].reduce((sum, s) => sum += J.includes(s), 0);
};

console.log( numJewelsInStones(J, S) );
console.log( numJewelsInStones(X, Y) );

bcowell

def hammingDistance(self, x, y):
    xor = bin(x^y)
    return xor.count("1")

bcowell

def shortestToChar(self, S: 'str', C: 'str') -> 'List[int]':
    # store index of all chars c
    ind = []
    for i,c in enumerate(S):
        if (c == C):
         ind.append(i)

    # Find shortest distance
    # from current i to indexed c
    arr = []

bcowell

def twoSum(self, nums: 'List[int]', target: 'int') -> 'List[int]':
    index = {}
    for i,num in enumerate(nums):
        # build dictionary
        if index.get(num) == None:
            index[num] = i;
        
        # if (target - num) is in dict
        if index.get(target - num) != None: 
            if i != index.get(target-num): # cannot use same element

bcowell

def sortArrayByParity(self, A):
    A.sort(key=lambda x: x%2)
    return A

bcowell

netsh int ipv4 set dynamicport tcp start=1025 num=64510
netsh int ipv4 show dynamicport tcp

New-ItemProperty `
-Path "HKLM:\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters" `
-Name "TcpTimedWaitDelay" `
-Value "30" `
-PropertyType "DWord"

bcowell

def sortedSquares(self, A: List[int]) -> List[int]:
    B = [i**2 for i in A]
    B.sort()
    return B

bcowell

def flipAndInvertImage(self, A: List[List[int]]) -> List[List[int]]:
    return [[int(not i) for i in row[::-1]] for row in A]

bcowell

{
  "message": "This certifies that bcowell completed the mazebot race in 123.812 seconds.",
  "elapsed": 123.812,
  "completed": "2019-07-15T03:47:00.566Z"
}

bcowell

# Given a string sentence, return the sentence with the words in the reverse order
# "I like apples" => "apples like I"
def reverseSentence(sentence):
  words = sentence.split(" ")
  return " ".join(words[::-1])

# If input is an array of characters instead of a string
# ['I', ' ', 'l' , 'i', 'k', e', ' ', 'a', 'p', 'p', 'l', 'e', 's']
# => ['a', 'p', 'p', 'l', 'e', 's', ' ', 'l', 'i', 'k', 'e', ' ', 'I']
def reverseSentenceArray(arr):