Hash Tables & Linear Probing | GATE DA 2027 Programming & DSA in Hindi

Binary search ko 10 comparisons lagte hain. Hashing ko ek hisaab. ⏱ CHAPTERS 0:00 Introduction 0:58 The idea 1:44 h(x) = 3x mod 10 : the key computes its own address 2:59 The formula 3:46 The idea: topic 4:30 Two families, one unavoidable problem 5:46 The idea: open addressing 6:43 The probe sequence walking forward, one slot at a time 7:53 2025 Q18: 14 lands in slot 4, 15 in slot 6 -› option (D) 8:47 The idea: slots 9:27 Primary clustering: every collision makes the next one worse 10:40 Building it up 11:34 Expected probes under uniform hashing: 1 / (1 12:40 GATE DA 2024, Q21 14:22 The idea: hash table 15:16 The deletion bug, and the tombstone that repairs it 16:47 The trap 17:54 GATE DA 2024, Q16 18:58 Why the step and the table size must be coprime 20:32 Recap ✅ REAL GATE QUESTIONS SOLVED IN THIS VIDEO • GATE DA 2024 Q16 (answer: A) • GATE DA 2024 Q21 (answer: B) • GATE DA 2025 Q18 (answer: D) Har answer official GATE answer key se verify kiya gaya hai. ⬅ PICHHLA VIDEO: Linked Lists — 5 GATE PYQs Solved | GATE DA 2027 in Hindi ➡ AGLA VIDEO: Hash Tables & Linear Probing — 5 GATE PYQs Solved | GATE DA 2027 in Hindi 📚 POORA COURSE — 220 videos, syllabus order mein:    • GATE DA 2027 Complete Course in Hindi — Fu...   🎯 GATE DA 2027 ki taiyari kaise shuru karein:    • How to Prepare for GATE DA 2027   ▶ CHANNEL:    / @datarekha   Ye poora course bilkul free hai — har topic, har exercise video. Sabko same level par seekhne aur compete karne ka haq hai.