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Dekho. Samjho. Unlock karo.

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9
Easy
1
Medium
0
Hard
10
Total
🔍

10 questions found

#01
EASY

Two Sum

ArrayHash Map
GoogleAmazonMicrosoftFlipkart
VISUALIZATION STEPS
1Understand the Problem
2Why Brute Force Fails
3Smart Approach: Hash Map
+2 more
#02
EASY

Valid Parentheses

StackString
GoogleMetaAmazonZomato
VISUALIZATION STEPS
1Stack Kya Hai?
2Opening Brackets
3Closing Brackets
+1 more
#03
EASY

Reverse Linked List

Linked ListPointers
AmazonMicrosoftPaytmRazorpay
VISUALIZATION STEPS
1Problem Visualize Karo
23 Pointer Trick
3Ek Step Dekhein
+1 more
#04
EASY

Binary Search

ArrayBinary Search
GoogleAmazonGoldman SachsInfosys
VISUALIZATION STEPS
1Sorted Array Ka Fayda
2Mid Calculate Karo
3Teen Cases
+1 more
#05
MEDIUM

Maximum Subarray

ArrayDynamic ProgrammingKadane's Algorithm
AmazonMicrosoftGoogleSwiggy
VISUALIZATION STEPS
1Problem Ko Samjho
2Key Decision: Jodhna ya Nayi Shuruat?
3Step-by-Step Trace
+1 more
#06
EASY

Contains Duplicate

ArrayHash Set
AmazonAppleNetflixFlipkart
VISUALIZATION STEPS
1The Insight
2Check & Add
#07
EASY

Single Number

ArrayBit ManipulationXOR
AmazonMicrosoftAdobeInfosys
VISUALIZATION STEPS
1XOR Magic
2XOR All Elements
#08
EASY

Climbing Stairs

Dynamic ProgrammingFibonacci
AmazonGoogleAdobeZomato
VISUALIZATION STEPS
1Pattern Recognition
2Space-Optimized DP
#09
EASY

Best Time to Buy & Sell Stock

ArrayGreedy
AmazonGoldman SachsGoogleRazorpay
VISUALIZATION STEPS
1Greedy Insight
2Update Logic
#10
EASY

Move Zeroes

ArrayTwo Pointers
FacebookAmazonMicrosoftPaytm
VISUALIZATION STEPS
1Two Pointer Approach
2Swap & Advance