Campus Monk by Rachit Rastogi

FedEx is hiring Position: Full Stack Developer I Qualification: Bachelor’s Degree Experience: Freshers/ Experienced Location: Hyderabad, India 📌Apply Now: https://careers.fedex.com/full-stack-developer-i/job/P25-330706-1?utm_source=CareerSiteOrganic ➖➖➖➖➖➖➖➖➖➖➖➖➖ Join our community for more ✨❤️ 📌Campusmonk Blogs: https://campusmonk.in/articles/ 📌Instagram: https://www.instagram.com/hustlewithcampusmonk/ 📌 Telegram: https://t.me/Campusmonk2025 📌LinkedIn: https://www.linkedin.com/company/campusmonk All the best 👍👍

💼 *Here’s how I’d prepare for Coding Interviews FAST if I had to start from zero:* *1) Learn one language deeply.* Pick _Python_, _Java_, or _C++_ — all are widely accepted in interviews. Stick to one and master syntax, data structures, and problem-solving. *2) Understand time & space complexity.* Learn how to analyze your code using _Big O Notation_. This is key to optimizing solutions and impressing interviewers. *3) Master data structures.* Focus on: – Arrays & Strings – Linked Lists – Stacks & Queues – Hash Maps – Trees & Graphs Build visual intuition and practice implementation. *4) Practice algorithms daily.* Start with: – Sorting & Searching – Recursion – Two Pointers – Sliding Window – Dynamic Programming Use platforms like _LeetCode_, _Codeforces_, or _InterviewBit_. *5) Use problem-solving patterns.* Learn reusable strategies like: – Divide & Conquer – Backtracking – Greedy – BFS/DFS – Memoization Patterns help you solve new problems faster. *6) Build a cheat sheet.* Document common patterns, syntax tricks, and edge cases. Review it before every mock interview. *7) Simulate real interviews.* Use mock platforms or pair up with friends. Practice whiteboard-style explanations and think aloud. *8) Learn system design basics.* Even for junior roles, understanding scalability, APIs, and architecture helps. Start with: – Load Balancing – Caching – Database Design – RESTful APIs *9) Prepare behavioral answers.* Use the _STAR method_ to structure responses. Practice answers for: – Strengths/Weaknesses – Conflict resolution – Teamwork & leadership *🔟 Track progress & stay consistent.* Use a spreadsheet or Notion board to log solved problems, topics covered, and weak areas. Consistency beats cramming. 💬 *Double Tap ♥️ For More*

🌟✨ Word of the Day ✨🌟 Tread (verb – B2) 🔊 /tred/ (TRED) 💡 Meaning: To walk on or step on something. 📌 Be careful where you tread; the floor is wet. 🧠 Mini-Story Trick: Tread → “Tread carefully!” 👣 Imagine walking carefully over broken glass. 🪟😨 👉 Tread = Walk or step on something 📝 Syn: Walk, Step | Ant: Avoid, Retreat ⸻ ✨ Double Tap ❤️ if you’re learning English every day! ⚡️ Share with friends 🙌

🪢 Rakhi ka dhaaga sirf kalai par nahi… dreams se bhi judta hai. Is Rakhi, give them a little push toward their placement dream. 🚀 🔥 18% OFF 🏷 USE CODE: RAKHI 🎥 batch details: https://youtu.be/k3OD0kNgSuI?si=XHQqJ9lyWCUgWZmw 👉 NEW SANKALP 9.0 — 2027: https://campusmonk123.netlify.app/ ━━━━━━━━━━━━━━ 📚 Already prefer recorded learning? AARAMBH 1.0 Apti + Verbal + Coding + Mock Tests & more 👉 https://bfwhv.courses.store/830023 ━━━━━━━━━━━━━━ 🎓 2028 Batch Students: NEW SANKALP 2028 👉https://bfwhv.courses.store/877885

🎯 CODING CHALLENGE #11 (BONUS) - Number of Islands Difficulty: Medium Given a 2D grid of '1' (land) and '0' (water), count the number of islands (connected groups of land, horizontally/vertically).

Input:
11000
11000
00100
00011

Output: 3

💡 Hint: This is graph traversal on an implicit grid graph - each land cell is a node, adjacent land cells are connected edges. DFS or BFS, "sinking" each island as you find it so you don't count it twice. Solution:

python
def num_islands(grid):
    if not grid:
        return 0

    rows, cols = len(grid), len(grid[0])
    count = 0

    def sink(r, c):
        if r < 0 or r >= rows or c < 0 or c >= cols or grid[r][c] != '1':
            return
        grid[r][c] = '0'  # mark as visited by sinking it
        sink(r+1, c)
        sink(r-1, c)
        sink(r, c+1)
        sink(r, c-1)

    for r in range(rows):
        for c in range(cols):
            if grid[r][c] == '1':
                count += 1
                sink(r, c)

    return count

Complexity: O(rows × cols) time - every cell is visited a constant number of times. Space is O(rows × cols) worst case for the recursion stack, if the entire grid is one giant island.

Common mistake: Modifying the grid in place without realizing that mutates the input the caller passed in - perfectly fine for most interview settings, but worth mentioning out loud: "I'm mutating the grid directly to track visited cells - if we need to preserve the original input, I'd use a separate visited set instead."

This exact pattern - grid + DFS/BFS + "sinking"/marking visited - solves a huge family of "connected regions" problems. Worth having memorized cold.

Would you use DFS or BFS here, and does it actually matter for this particular problem? 👇

🌟✨ Phrasal Verb of the Day ✨🌟 Run into (phrasal verb – B2) 💡 Meaning: To meet someone unexpectedly. 📌 I ran into an old friend at the market. 🧠 Mini-Story Trick: Run + Into → You run into someone unexpectedly! 🏃‍♂️👋 👉 Run into = Meet by chance 📝 Syn: Meet unexpectedly, Encounter | Ant: Avoid ⸻ ✨ Double Tap ❤️ if you’re learning English every day! ⚡️ Share with friends 🙌

🪢 Rakhi ka dhaaga sirf kalai par nahi… dreams se bhi judta hai. Is Rakhi, give them a little push toward their placement dream. 🚀 🔥 18% OFF 🏷 USE CODE: RAKHI 🎥 batch details: https://youtu.be/k3OD0kNgSuI?si=XHQqJ9lyWCUgWZmw 👉 NEW SANKALP 9.0 — 2027: https://campusmonk123.netlify.app/ ━━━━━━━━━━━━━━ 📚 Already prefer recorded learning? AARAMBH 1.0 Apti + Verbal + Coding + Mock Tests & more 👉 https://bfwhv.courses.store/830023 ━━━━━━━━━━━━━━ 🎓 2028 Batch Students: NEW SANKALP 2028 👉https://bfwhv.courses.store/877885

🌟✨ Word of the Day ✨🌟 Pernicious (adjective – C1) 🔊 /pəˈnɪʃ.əs/ (per-NISH-us) 💡 Meaning: Having a harmful effect, especially gradually or secretly. 📌 Excessive screen time can have pernicious effects on sleep. 🧠 Mini-Story Trick: Pernicious → “Perilous” ☠️ Imagine a tiny bad habit slowly becoming dangerous over time. 👉 Pernicious = Harmful, especially gradually 📝 Syn: Harmful, Damaging | Ant: Beneficial, Harmless ⸻ ✨ Double Tap ❤️ if you’re learning English every day! ⚡️ Share with friends 🙌

🌟 Guess the Word 👇 magn___ (adj.) generous and forgiving, especially toward a rival or someone less powerful 💡 Can you guess the word? 😄

Zebra Technologies Position: Data Engineer, I Qualifications: Bachelor’s/ Master’s Degree Experience: Freshers/ Experienced Location: Bangalore, India 📌Apply Now: https://zebra.wd501.myworkdayjobs.com/en-US/Zebra_careers/job/Data-EngineerI_JR102916?locations=281a47809d0e10014436581537c40000 ➖➖➖➖➖➖➖➖➖➖➖➖➖ Join our community for more ✨❤️ 📌Campusmonk Blogs: https://campusmonk.in/articles/ 📌Instagram: https://www.instagram.com/hustlewithcampusmonk/ 📌 Telegram: https://t.me/Campusmonk2025 📌LinkedIn: https://www.linkedin.com/company/campusmonk All the best 👍👍

Salesforce Position: Associate Technical Consultant Qualifications: Bachelor’s Degree Experience: Freshers (0-12 Months) Location: Hyderabad, Bangalore, India 📌Apply Now: https://www.salesforce.com/company/careers/jobs/JR357143/associate-technical-consultant/ ➖➖➖➖➖➖➖➖➖➖➖➖➖ Join our community for more ✨❤️ 📌Campusmonk Blogs: https://campusmonk.in/articles/ 📌Instagram: https://www.instagram.com/hustlewithcampusmonk/ 📌 Telegram: https://t.me/Campusmonk2025 📌LinkedIn: https://www.linkedin.com/company/campusmonk All the best 👍👍

💭 Ek baat honestly batao… Jab placement season start hoga na, tab tumhare paas 2 options honge: “Kaash maine pehle prepare kiya hota…” ya “Good. I was ready for this.” 🔥 Difference sirf preparation ke start hone ka hai. 2027 students - agar TCS, Accenture, Cognizant, Capgemini, Wipro & other MNCs ka target hai, toh ab sirf YouTube videos save karne ka time nahi hai. Ab practice + PYQs + mocks + coding + aptitude + interview prep ko ek system mein karne ka time hai. 🎯 🚀 NEW SANKALP 9.0 - 2027 BATCH 📌 Complete Placement Preparation 📌 Aptitude + Reasoning + Verbal 📌 Coding + DSA 📌 Company/Exam-oriented PYQs 📌 Mock Tests 📌 Interview Preparation 🎥 batch details: https://youtu.be/k3OD0kNgSuI?si=XHQqJ9lyWCUgWZmw 👉 NEW SANKALP 9.0 — 2027: https://campusmonk123.netlify.app/ ━━━━━━━━━━━━━━ 📚 Already prefer recorded learning? AARAMBH 1.0 Apti + Verbal + Coding + Mock Tests & more 👉 https://bfwhv.courses.store/830023 ━━━━━━━━━━━━━━ 🎓 2028 Batch Students: NEW SANKALP 2028 👉https://bfwhv.courses.st

Hilti is hiring Embedded Software Enigneer For 2024, 2025 grads Location: Gujarat https://careers.hilti.group/en/jobs/19527-en/embedded-software-engineer ➖➖➖➖➖➖➖➖➖➖➖➖➖ Join our community for more ✨❤️ 📌Campusmonk Blogs: https://campusmonk.in/articles/ 📌Instagram: https://www.instagram.com/hustlewithcampusmonk/ 📌 Telegram: https://t.me/Campusmonk2025 📌LinkedIn: https://www.linkedin.com/company/campusmonk All the best 👍👍

Scooter is hiring GTM Engineer For 2021, 2022, 2023, 2024 grads Location: Remote https://www.thescooter.ai/home/careers/6a8d79d7e8724db7d110015a ➖➖➖➖➖➖➖➖➖➖➖➖➖ Join our community for more ✨❤️ 📌Campusmonk Blogs: https://campusmonk.in/articles/ 📌Instagram: https://www.instagram.com/hustlewithcampusmonk/ 📌 Telegram: https://t.me/Campusmonk2025 📌LinkedIn: https://www.linkedin.com/company/campusmonk All the best 👍👍

LG Solution is hiring Software Eningeer I For 2025, 2026 grads Location: Bangalore https://jobs.ashbyhq.com/lgads/02b11bae-83d2-47f5-9ff2-6114f13ee360 ➖➖➖➖➖➖➖➖➖➖➖➖➖ Join our community for more ✨❤️ 📌Campusmonk Blogs: https://campusmonk.in/articles/ 📌Instagram: https://www.instagram.com/hustlewithcampusmonk/ 📌 Telegram: https://t.me/Campusmonk2025 📌LinkedIn: https://www.linkedin.com/company/campusmonk All the best 👍👍

ClanX Hiring Data Engineer Intern https://jobs.clanx.ai/o/data-engineer-intern-gurugram ➖➖➖➖➖➖➖➖➖➖➖➖➖ Join our community for more ✨❤️ 📌Campusmonk Blogs: https://campusmonk.in/articles/ 📌Instagram: https://www.instagram.com/hustlewithcampusmonk/ 📌 Telegram: https://t.me/Campusmonk2025 📌LinkedIn: https://www.linkedin.com/company/campusmonk All the best 👍👍

Fortive is hiring entry level Data Scientist 🔥✔️ Experience : 0-2 Years Location : Bangalore Apply link : https://fortive.eightfold.ai/careers/job/893396777515?domain=fortive.com Like for more job opportunities ❤️

🚀 TCS NQT 2026 IS FINALLY HERE! 🚀 Looking to kick-start your career with India's leading IT giant? The TCS National Qualifier Test (NQT) 2026 registration is officially open! Here is everything you need to know: 💼 Company: Tata Consultancy Services (TCS) 🎓 Eligible Batches: 2021-2027 graduates 📚 Degrees: BE / B.Tech / ME / M.Tech / MSc / MCA / BSc 💰 Highest Package: Up to ₹19 LPA 📍 Location: PAN India ⏳ Important Dates: * Last Date to Apply: 2 September 2026 * Test Date: 14 September 2026 Don't wait until the deadline! Check your eligibility and register now to unlock massive career opportunities. https://youtu.be/qWzj-2yN5Vk?si=2CU0VOrsWPe8V5pj https://www.tcsion.com/hub/national-qualifier-test/