import pyutil as pyu
pyu.get_local_pyinfo()

print(pyu.ps2("python-dotenv"))

from typing import List

class Solution:
  def countAndSay(self, n: int) -> str:
    ans = '1'

    for _ in range(n - 1):
      nxt = ''
      i = 0
      while i < len(ans):
        count = 1
        while i + 1 < len(ans) and …

# Created: 20250104

import pyutil as pyu
pyu.get_local_pyinfo()

'conda env: ml312-2024; pyv: 3.12.7 | packaged by Anaconda, Inc. | (main, Oct  4 2024, 13:27:36) [GCC 11.2.0]'

print(pyu.ps2("yfinance pandas matplotlib"))

yfinance==0.2.51
pandas==2.2.3
matplotlib==3.9.3

import …

import pyutil as pyu
pyu.get_local_pyinfo()

print(pyu.ps2("python-dotenv"))

from typing import List

class Solution:
  def canConstruct(self, ransomNote: str, magazine: str) -> bool:
    count1 = Counter(ransomNote)
    count2 = Counter(magazine)
    return all(count1[c] <= count2[c] for c in string.ascii_lowercase)

new Solution().canConstruct()

import pyutil as pyu
pyu.get_local_pyinfo()

print(pyu.ps2("python-dotenv"))

from typing import List

class Solution:
  def __init__(self, nums: List[int]):
    self.nums = nums

  def reset(self) -> List[int]:
    """
    Resets the array to its original configuration and return it.
    """
    return self.nums

  def shuffle …

import pyutil as pyu
pyu.get_local_pyinfo()

print(pyu.ps2("python-dotenv"))

from typing import List

class Solution:
  def deserialize(self, s: str) -> NestedInteger:
    if s[0] != '[':
      return NestedInteger(int(s))

    stack = []

    for i, c in enumerate(s):
      if c == '[':
        stack.append(NestedInteger())
        start = i + 1
      elif …

import pyutil as pyu
pyu.get_local_pyinfo()

print(pyu.ps2("python-dotenv"))

from typing import List

class Solution:
  def firstUniqChar(self, s: str) -> int:
    count = Counter(s)

    for i, c in enumerate(s):
      if count[c] == 1:
        return i

    return -1

new Solution().firstUniqChar()

import pyutil as pyu
pyu.get_local_pyinfo()

print(pyu.ps2("python-dotenv"))

from typing import List

class Solution:
  def findTheDifference(self, s: str, t: str) -> str:
    count = Counter(s)

    for i, c in enumerate(t):
      count[c] -= 1
      if count[c] == -1:
        return c

new Solution().findTheDifference …

import pyutil as pyu
pyu.get_local_pyinfo()

print(pyu.ps2("python-dotenv"))

from typing import List

class Solution:
  def combinationSum(self, candidates: List[int], target: int) -> List[List[int]]:
    ans = []

    def dfs(s: int, target: int, path: List[int]) -> None:
      if target < 0:
        return
      if target == 0 …

# Created: 20250104

import pyutil as pyu
pyu.get_local_pyinfo()

'conda env: ml312-2024; pyv: 3.12.7 | packaged by Anaconda, Inc. | (main, Oct  4 2024, 13:27:36) [GCC 11.2.0]'

print(pyu.ps2("yfinance pandas matplotlib"))

yfinance==0.2.51
pandas==2.2.3
matplotlib==3.9.3

import …

import pyutil as pyu
pyu.get_local_pyinfo()

print(pyu.ps2("python-dotenv"))

from typing import List

class Solution:
  def decodeString(self, s: str) -> str:
    stack = []  # (prevStr, repeatCount)
    currStr = ''
    currNum = 0

    for c in s:
      if c.isdigit():
        currNum = currNum * 10 + int(c)
      else:
        if c == '[':
          stack.append …