From d6df4b013d9b980759fbaa692313c31350da0d37 Mon Sep 17 00:00:00 2001 From: mihirs16 Date: Thu, 2 Mar 2023 02:02:43 +0000 Subject: [PATCH 1/6] added: string compression --- .../leetcode 443 - string compression.py | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 14. Questions/leetcode 443 - string compression.py diff --git a/14. Questions/leetcode 443 - string compression.py b/14. Questions/leetcode 443 - string compression.py new file mode 100644 index 0000000..098546c --- /dev/null +++ b/14. Questions/leetcode 443 - string compression.py @@ -0,0 +1,22 @@ +# string compression | leetcode 443 | https://leetcode.com/problems/string-compression/ +# sliding window to keep track of a char's occurence + +class Solution: + def compress(self, chars: list[str]) -> int: + ptrL, ptrR = 0, 0 + total = 0 + chars += " " + + while ptrR < len(chars): + if chars[ptrL] != chars[ptrR]: + chars[total] = chars[ptrL] + total += 1 + group = ptrR - ptrL + if group > 1: + for x in str(group): + chars[total] = x + total += 1 + ptrL = ptrR + ptrR += 1 + + return total From 3d577429c3c9fab205f3d141d006ec3f10add45b Mon Sep 17 00:00:00 2001 From: mihirs16 Date: Fri, 3 Mar 2023 03:31:27 +0000 Subject: [PATCH 2/6] added: index of first occurrence --- ...leetcode 28 - index of first occurrence.py | 26 +++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 14. Questions/leetcode 28 - index of first occurrence.py diff --git a/14. Questions/leetcode 28 - index of first occurrence.py b/14. Questions/leetcode 28 - index of first occurrence.py new file mode 100644 index 0000000..e059e17 --- /dev/null +++ b/14. Questions/leetcode 28 - index of first occurrence.py @@ -0,0 +1,26 @@ +# find the index of the first occurrence of a string | leetcode 28 | https://leetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/ +# sliding window to match each character of the haystack with the needle; no slices. + +class Solution: + def strStr(self, haystack: str, needle: str) -> int: + # ----- using regex ----- + # if needle == '': + # return 0 + + # import re + # match = re.search(needle, haystack) + # return match.start() if match else -1 + + # ----- using sliding windows ----- + ptrL, ptrR = 0, 0 + N_needle, N_haystack = len(needle), len(haystack) + while ptrR < N_haystack: + if haystack[ptrR] == needle[ptrR - ptrL]: + ptrR += 1 + if ptrR - ptrL > N_needle - 1: + return ptrL + else: + ptrR = ptrL + 1 + ptrL += 1 + + return -1 From c455b1c86c9f9f017dc7c60860e0fb20e2eaf8d0 Mon Sep 17 00:00:00 2001 From: Viththal Khandelwal Date: Sat, 25 Mar 2023 14:30:24 -0400 Subject: [PATCH 3/6] enumerate function --- 07. Functional Programming/enumerate.py | 4 ++++ 1 file changed, 4 insertions(+) create mode 100644 07. Functional Programming/enumerate.py diff --git a/07. Functional Programming/enumerate.py b/07. Functional Programming/enumerate.py new file mode 100644 index 0000000..eef1904 --- /dev/null +++ b/07. Functional Programming/enumerate.py @@ -0,0 +1,4 @@ +fruits = ['apple', 'banana', 'cherry', 'grape'] + +for index, fruit in enumerate(fruits, 1): + print(index, fruit) From 0ee2da7b9fc7513bd2201dcd3d0cb444ef865668 Mon Sep 17 00:00:00 2001 From: Jackyrd3 Date: Sat, 30 Mar 2024 16:10:41 -0700 Subject: [PATCH 4/6] Add logger Middleware --- server.js | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 server.js diff --git a/server.js b/server.js new file mode 100644 index 0000000..ec24f31 --- /dev/null +++ b/server.js @@ -0,0 +1,32 @@ +// Import required modules +const express = require('express'); + +// Create an Express application +const app = express(); + +// Middleware function to log requests +app.use((req, res, next) => { + console.log(`Received a ${req.method} request to ${req.url}`); + next(); // Call next() to move to the next middleware or route handler +}); + +// Middleware function to check if the request contains a specific header +app.use((req, res, next) => { + if (req.headers.authorization) { + console.log('Authorization header present'); + } else { + console.log('Authorization header not present'); + } + next(); +}); + +// Route handler +app.get('/', (req, res) => { + res.send('Hello, World!'); +}); + +// Starting the server +const PORT = process.env.PORT || 3000; +app.listen(PORT, () => { + console.log(`Server is running on port ${PORT}`); +}); From a00994566223b040934f82ef5a0a0096e8f875a2 Mon Sep 17 00:00:00 2001 From: Jackyrd3 Date: Sat, 30 Mar 2024 16:10:56 -0700 Subject: [PATCH 5/6] Add logger --- loggerMiddleware.js | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 loggerMiddleware.js diff --git a/loggerMiddleware.js b/loggerMiddleware.js new file mode 100644 index 0000000..25925e8 --- /dev/null +++ b/loggerMiddleware.js @@ -0,0 +1,29 @@ +const express = require('express'); +const app = express(); + +// Middleware function to log requests +app.use((req, res, next) => { + console.log(`Received a ${req.method} request to ${req.url}`); + next(); // Call next() to move to the next middleware or route handler +}); + +// Middleware function to check if the request contains a specific header +app.use((req, res, next) => { + if (req.headers.authorization) { + console.log('Authorization header present'); + } else { + console.log('Authorization header not present'); + } + next(); +}); + +// Route handler +app.get('/', (req, res) => { + res.send('Hello, World!'); +}); + +// Starting the server +const PORT = process.env.PORT || 3000; +app.listen(PORT, () => { + console.log(`Server is running on port ${PORT}`); +}); From 199033535d0e3ee41d61760dbcb767d07e48c306 Mon Sep 17 00:00:00 2001 From: Agamergen Date: Sat, 25 Jan 2025 16:49:29 +0300 Subject: [PATCH 6/6] Create LEARN I have to learn this --- 03. Data Structures/Queues/LEARN | 1 + 1 file changed, 1 insertion(+) create mode 100644 03. Data Structures/Queues/LEARN diff --git a/03. Data Structures/Queues/LEARN b/03. Data Structures/Queues/LEARN new file mode 100644 index 0000000..8b13789 --- /dev/null +++ b/03. Data Structures/Queues/LEARN @@ -0,0 +1 @@ +