dylanzenner

class Solution:
    def twoSum(self, nums: List[int], target: int) -> List[int]:
        for i in range(len(nums)):
            for j in range(len(nums[1:])):
                if nums[i] + nums[j] == target and i != j:
                    return [i, j]

dylanzenner

class Solution:
    def twoSum(self, nums: List[int], target: int) -> List[int]:
        hashmap = {}
        for i in range(len(nums)):
            complement = target - nums[i]
            if complement in hashmap:
                return [hashmap[complement], i]
            hashmap[nums[i]] = i

dylanzenner

# Definition for singly-linked list.
# class ListNode:
#     def __init__(self, val=0, next=None):
#         self.val = val
#         self.next = next
class Solution:
    def reverseList(self, head: Optional[ListNode]) -> Optional[ListNode]:
        cur = head
        prev = None
        while cur:

dylanzenner

# Definition for singly-linked list.
# class ListNode:
#     def __init__(self, val=0, next=None):
#         self.val = val
#         self.next = next
class Solution:
    def reverseList(self, head: ListNode) -> ListNode:
        if not head: 
            return head
        if not head.next: 

dylanzenner

from typing import Dict
from collections import Counter

def most_frequent_char(s: str) -> Dict:
  mapping = Counter(s)
  return dict(sorted(mapping.items(), key=lambda item: item[1]))      

dylanzenner

Fn::ForEach::UniqueLoopName:
  - Identifier
  - - Value1 //collection
    - Value2
  - 'OutputKey':
      OutputValue
      
 Fn::ForEach::UniqueLoopName:
  - Identifier
  - !Ref ListOfValues

dylanzenner

AWSTemplateFormatVersion: '2010-09-09'
Transform: 'AWS::LanguageExtensions'
Parameters:
  QueueNames:
    Type: CommaDelimitedList
    Description: A list of SQS queue Names.
    Default: 'queue-1, queue-2, queue-3'
Resources:
  Fn::ForEach::Subscription:
    - QueueName

dylanzenner

AWSTemplateFormatVersion: '2010-09-09'
Resources:
  queue1:
    Type: AWS::SQS::Queue
      Properties:
        QueueName: "queue1"
  queue2:
    Type: AWS::SQS::Queue
      Properties:
        QueueName: "queue2"