Interview Course Based on Story Questions

## Problem statement

You are provided with two stack sequences, `pushed` and `popped`, with distinct values. Return `true` if and only if this could have been the result of a sequence of `push` and `pop` operations on an initially empty stack.

### Input

The input will be two lists. The following is an example input:

```python
pushed = [1,2,3,4,5]
popped = [1,2,3,4,5]
```

### Output

The output will be a Boolean representing whether these sequences of push and pop operations could have been interleaved and performed on a valid stack that was initially empty. The following is an example output:

```python
True
```
The following operation would result in an empty stack:

`push(1), pop(1), push(2), pop(2), push(3), pop(3), push(4), pop(4), push(5), pop(5)`

## Coding exercise

Implement the `validate_stack_sequences(pushed, popped)` function, where `pushed` and `popped` are the two stack sequences. The function returns either `True` or `False` depending on whether the stack was initially empty or not.



# Problem statement

You are provided with two stack sequences, `pushed` and `popped`, with distinct values. Return `true` if and only if this could have been the result of a sequence of `push` and `pop` operations on an initially empty stack.

## Input

The input will be two lists. The following is an example input:

```python
pushed = [1,2,3,4,5]
popped = [1,2,3,4,5]
```

## Output

The output will be a Boolean representing whether these sequences of push and pop operations could have been interleaved and performed on a valid stack that was initially empty. The following is an example output:

```python
True
```
The following operation would result in an empty stack:

`push(1), pop(1), push(2), pop(2), push(3), pop(3), push(4), pop(4), push(5), pop(5)`

# Coding exercise

Implement the `validate_stack_sequences(pushed, popped)` function, where `pushed` and `popped` are the two stack sequences. The function returns either `True` or `False` depending on whether the stack was initially empty or not.



DIY: Validate Stack Sequences

Problem statement