Bug Report for minimum-stack

[viktor-richard-ban]

Bug Report for https://neetcode.io/problems/minimum-stack

When I run my code using the sample input, the output matches expectations. However, when I submit the exact same code, the results differ.

Langauge: Python
Input: ["MinStack", "push", -1, "push", 3, "push", -4, "getMin", "pop", "getMin", "top"]

class MinStack:
    stack = []
    minStack = []

    def push(self, val: int) -> None:
        self.stack.append(val)
        if len(self.minStack) > 0:
            self.minStack.append(min(self.minStack[-1], val))
        else:
            self.minStack.append(val)

    def pop(self) -> None:
        self.stack.pop()
        self.minStack.pop()

    def top(self) -> int:
        return self.stack[-1]

    def getMin(self) -> int:
        return self.minStack[-1]

Results:

[viktor-richard-ban]

Problem: Class attribute vs instance attribute
Solution:

def __init__(self):
    self.stack = []
    self.minStack = []