Closed
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 0 additions & 5 deletions .vscode/settings.json

This file was deleted.

70 changes: 70 additions & 0 deletions data_structures/stacks/stack_by_two_queues.py
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,70 @@
from collections import deque
from typing import Generic, TypeVar

T = TypeVar("T")
""" Implementing stack using two arrays"""


class Stack(Generic[T]): # Stack class to implement stack operations
def __init__(self):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: __init__. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue = deque() # First Queue to be used for inserting
self.second_queue = deque() # Second Queue to be used

def push(self, item: int):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: push. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue.append(item)
while self.second_queue:
self.insert_queue.append(
self.second_queue.popleft()
) # Popping the elements

self.insert_queue, self.second_queue = self.second_queue, self.insert_queue

def pop(self) -> int:
if not self.second_queue: # if the stack is empty
return None
return self.second_queue.popleft() # if not empty pop

def top(self) -> int:
if not self.second_queue:
return None
return self.second_queue[0]

def __str__(self) -> str:
return tuple(self.second_queue)

def __len__(self) -> int:
return len(self.second_queue)


def test_stack() -> None:
stack = Stack() # Creating a empty stack
choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)
while choice in (1, 2, 3, 4, 5, 6):
match (choice):
case 1:
element = int(input("Enter the element to push:"))
stack.push(element)
case 2:
print(stack.pop())
case 3:
print(stack.top())
case 4:
print(stack.__str__())
case 5:
leng = stack.__len__()
print(f"The size of the stack is {leng}")
case 6:
print("Exiting")
break
case _:
print("Enter properly")

choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)


if __name__ == "__main__":
test_stack() # calling the test function
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Skip to content
Closed
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 0 additions & 5 deletions .vscode/settings.json

This file was deleted.

70 changes: 70 additions & 0 deletions data_structures/stacks/stack_by_two_queues.py
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,70 @@
from collections import deque
from typing import Generic, TypeVar

T = TypeVar("T")
""" Implementing stack using two arrays"""


class Stack(Generic[T]): # Stack class to implement stack operations
def __init__(self):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: __init__. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue = deque() # First Queue to be used for inserting
self.second_queue = deque() # Second Queue to be used

def push(self, item: int):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: push. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue.append(item)
while self.second_queue:
self.insert_queue.append(
self.second_queue.popleft()
) # Popping the elements

self.insert_queue, self.second_queue = self.second_queue, self.insert_queue

def pop(self) -> int:
if not self.second_queue: # if the stack is empty
return None
return self.second_queue.popleft() # if not empty pop

def top(self) -> int:
if not self.second_queue:
return None
return self.second_queue[0]

def __str__(self) -> str:
return tuple(self.second_queue)

def __len__(self) -> int:
return len(self.second_queue)


def test_stack() -> None:
stack = Stack() # Creating a empty stack
choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)
while choice in (1, 2, 3, 4, 5, 6):
match (choice):
case 1:
element = int(input("Enter the element to push:"))
stack.push(element)
case 2:
print(stack.pop())
case 3:
print(stack.top())
case 4:
print(stack.__str__())
case 5:
leng = stack.__len__()
print(f"The size of the stack is {leng}")
case 6:
print("Exiting")
break
case _:
print("Enter properly")

choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)


if __name__ == "__main__":
test_stack() # calling the test function
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content
Closed
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 0 additions & 5 deletions .vscode/settings.json

This file was deleted.

70 changes: 70 additions & 0 deletions data_structures/stacks/stack_by_two_queues.py
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,70 @@
from collections import deque
from typing import Generic, TypeVar

T = TypeVar("T")
""" Implementing stack using two arrays"""


class Stack(Generic[T]): # Stack class to implement stack operations
def __init__(self):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: __init__. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue = deque() # First Queue to be used for inserting
self.second_queue = deque() # Second Queue to be used

def push(self, item: int):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: push. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue.append(item)
while self.second_queue:
self.insert_queue.append(
self.second_queue.popleft()
) # Popping the elements

self.insert_queue, self.second_queue = self.second_queue, self.insert_queue

def pop(self) -> int:
if not self.second_queue: # if the stack is empty
return None
return self.second_queue.popleft() # if not empty pop

def top(self) -> int:
if not self.second_queue:
return None
return self.second_queue[0]

def __str__(self) -> str:
return tuple(self.second_queue)

def __len__(self) -> int:
return len(self.second_queue)


def test_stack() -> None:
stack = Stack() # Creating a empty stack
choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)
while choice in (1, 2, 3, 4, 5, 6):
match (choice):
case 1:
element = int(input("Enter the element to push:"))
stack.push(element)
case 2:
print(stack.pop())
case 3:
print(stack.top())
case 4:
print(stack.__str__())
case 5:
leng = stack.__len__()
print(f"The size of the stack is {leng}")
case 6:
print("Exiting")
break
case _:
print("Enter properly")

choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)


if __name__ == "__main__":
test_stack() # calling the test function
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content
Closed
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 0 additions & 5 deletions .vscode/settings.json

This file was deleted.

70 changes: 70 additions & 0 deletions data_structures/stacks/stack_by_two_queues.py
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,70 @@
from collections import deque
from typing import Generic, TypeVar

T = TypeVar("T")
""" Implementing stack using two arrays"""


class Stack(Generic[T]): # Stack class to implement stack operations
def __init__(self):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: __init__. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue = deque() # First Queue to be used for inserting
self.second_queue = deque() # Second Queue to be used

def push(self, item: int):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: push. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue.append(item)
while self.second_queue:
self.insert_queue.append(
self.second_queue.popleft()
) # Popping the elements

self.insert_queue, self.second_queue = self.second_queue, self.insert_queue

def pop(self) -> int:
if not self.second_queue: # if the stack is empty
return None
return self.second_queue.popleft() # if not empty pop

def top(self) -> int:
if not self.second_queue:
return None
return self.second_queue[0]

def __str__(self) -> str:
return tuple(self.second_queue)

def __len__(self) -> int:
return len(self.second_queue)


def test_stack() -> None:
stack = Stack() # Creating a empty stack
choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)
while choice in (1, 2, 3, 4, 5, 6):
match (choice):
case 1:
element = int(input("Enter the element to push:"))
stack.push(element)
case 2:
print(stack.pop())
case 3:
print(stack.top())
case 4:
print(stack.__str__())
case 5:
leng = stack.__len__()
print(f"The size of the stack is {leng}")
case 6:
print("Exiting")
break
case _:
print("Enter properly")

choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)


if __name__ == "__main__":
test_stack() # calling the test function
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
Skip to content
Closed
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 0 additions & 5 deletions .vscode/settings.json

This file was deleted.

70 changes: 70 additions & 0 deletions data_structures/stacks/stack_by_two_queues.py
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,70 @@
from collections import deque
from typing import Generic, TypeVar

T = TypeVar("T")
""" Implementing stack using two arrays"""


class Stack(Generic[T]): # Stack class to implement stack operations
def __init__(self):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: __init__. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue = deque() # First Queue to be used for inserting
self.second_queue = deque() # Second Queue to be used

def push(self, item: int):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: push. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue.append(item)
while self.second_queue:
self.insert_queue.append(
self.second_queue.popleft()
) # Popping the elements

self.insert_queue, self.second_queue = self.second_queue, self.insert_queue

def pop(self) -> int:
if not self.second_queue: # if the stack is empty
return None
return self.second_queue.popleft() # if not empty pop

def top(self) -> int:
if not self.second_queue:
return None
return self.second_queue[0]

def __str__(self) -> str:
return tuple(self.second_queue)

def __len__(self) -> int:
return len(self.second_queue)


def test_stack() -> None:
stack = Stack() # Creating a empty stack
choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)
while choice in (1, 2, 3, 4, 5, 6):
match (choice):
case 1:
element = int(input("Enter the element to push:"))
stack.push(element)
case 2:
print(stack.pop())
case 3:
print(stack.top())
case 4:
print(stack.__str__())
case 5:
leng = stack.__len__()
print(f"The size of the stack is {leng}")
case 6:
print("Exiting")
break
case _:
print("Enter properly")

choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)


if __name__ == "__main__":
test_stack() # calling the test function
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content
Closed
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 0 additions & 5 deletions .vscode/settings.json

This file was deleted.

70 changes: 70 additions & 0 deletions data_structures/stacks/stack_by_two_queues.py
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,70 @@
from collections import deque
from typing import Generic, TypeVar

T = TypeVar("T")
""" Implementing stack using two arrays"""


class Stack(Generic[T]): # Stack class to implement stack operations
def __init__(self):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: __init__. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue = deque() # First Queue to be used for inserting
self.second_queue = deque() # Second Queue to be used

def push(self, item: int):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: push. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue.append(item)
while self.second_queue:
self.insert_queue.append(
self.second_queue.popleft()
) # Popping the elements

self.insert_queue, self.second_queue = self.second_queue, self.insert_queue

def pop(self) -> int:
if not self.second_queue: # if the stack is empty
return None
return self.second_queue.popleft() # if not empty pop

def top(self) -> int:
if not self.second_queue:
return None
return self.second_queue[0]

def __str__(self) -> str:
return tuple(self.second_queue)

def __len__(self) -> int:
return len(self.second_queue)


def test_stack() -> None:
stack = Stack() # Creating a empty stack
choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)
while choice in (1, 2, 3, 4, 5, 6):
match (choice):
case 1:
element = int(input("Enter the element to push:"))
stack.push(element)
case 2:
print(stack.pop())
case 3:
print(stack.top())
case 4:
print(stack.__str__())
case 5:
leng = stack.__len__()
print(f"The size of the stack is {leng}")
case 6:
print("Exiting")
break
case _:
print("Enter properly")

choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)


if __name__ == "__main__":
test_stack() # calling the test function
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content
Closed
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 0 additions & 5 deletions .vscode/settings.json

This file was deleted.

70 changes: 70 additions & 0 deletions data_structures/stacks/stack_by_two_queues.py
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,70 @@
from collections import deque
from typing import Generic, TypeVar

T = TypeVar("T")
""" Implementing stack using two arrays"""


class Stack(Generic[T]): # Stack class to implement stack operations
def __init__(self):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: __init__. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue = deque() # First Queue to be used for inserting
self.second_queue = deque() # Second Queue to be used

def push(self, item: int):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: push. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue.append(item)
while self.second_queue:
self.insert_queue.append(
self.second_queue.popleft()
) # Popping the elements

self.insert_queue, self.second_queue = self.second_queue, self.insert_queue

def pop(self) -> int:
if not self.second_queue: # if the stack is empty
return None
return self.second_queue.popleft() # if not empty pop

def top(self) -> int:
if not self.second_queue:
return None
return self.second_queue[0]

def __str__(self) -> str:
return tuple(self.second_queue)

def __len__(self) -> int:
return len(self.second_queue)


def test_stack() -> None:
stack = Stack() # Creating a empty stack
choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)
while choice in (1, 2, 3, 4, 5, 6):
match (choice):
case 1:
element = int(input("Enter the element to push:"))
stack.push(element)
case 2:
print(stack.pop())
case 3:
print(stack.top())
case 4:
print(stack.__str__())
case 5:
leng = stack.__len__()
print(f"The size of the stack is {leng}")
case 6:
print("Exiting")
break
case _:
print("Enter properly")

choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)


if __name__ == "__main__":
test_stack() # calling the test function
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
Skip to content
Closed
Show file tree
Hide file tree
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
5 changes: 0 additions & 5 deletions .vscode/settings.json

This file was deleted.

70 changes: 70 additions & 0 deletions data_structures/stacks/stack_by_two_queues.py
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,70 @@
from collections import deque
from typing import Generic, TypeVar

T = TypeVar("T")
""" Implementing stack using two arrays"""


class Stack(Generic[T]): # Stack class to implement stack operations
def __init__(self):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: __init__. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue = deque() # First Queue to be used for inserting
self.second_queue = deque() # Second Queue to be used

def push(self, item: int):

Copy link
Copy Markdown

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Please provide return type hint for the function: push. If the function does not return a value, please provide the type hint as:def function() -> None:

self.insert_queue.append(item)
while self.second_queue:
self.insert_queue.append(
self.second_queue.popleft()
) # Popping the elements

self.insert_queue, self.second_queue = self.second_queue, self.insert_queue

def pop(self) -> int:
if not self.second_queue: # if the stack is empty
return None
return self.second_queue.popleft() # if not empty pop

def top(self) -> int:
if not self.second_queue:
return None
return self.second_queue[0]

def __str__(self) -> str:
return tuple(self.second_queue)

def __len__(self) -> int:
return len(self.second_queue)


def test_stack() -> None:
stack = Stack() # Creating a empty stack
choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)
while choice in (1, 2, 3, 4, 5, 6):
match (choice):
case 1:
element = int(input("Enter the element to push:"))
stack.push(element)
case 2:
print(stack.pop())
case 3:
print(stack.top())
case 4:
print(stack.__str__())
case 5:
leng = stack.__len__()
print(f"The size of the stack is {leng}")
case 6:
print("Exiting")
break
case _:
print("Enter properly")

choice = int(
input("1 to push,2 to pop,3 to peek ,4 to print, 5 for size,6 to exit:")
)


if __name__ == "__main__":
test_stack() # calling the test function