Campus Placement Ready
Practice WhatCompaniesActually Ask
Real OA questions. Real patterns. Real results. Stop guessing and start preparing smart with the ultimate campus placement companion.
oahelper.in
G
42 QuestionsOnline Assessment
Sort by: Recent
01
REAL OAFind the Maximum Score After Applying Operations
ArraysDPGreedy
02
REAL OAShortest Path in Grid with Obstacles
BFSGraphs
03
REAL OACount Subarrays With Score Less Than K
Sliding WindowPrefix Sum
🔒
🔒
REAL OAMinimum Cost to Connect All Nodes
GraphsMST
PREMIUM
🔒
🔒
REAL OAOptimal Partition of String
StringsHash Map
PREMIUM
🔒
🔒
REAL OAMatrix Chain Multiplication Variant
DPMath
PREMIUM
🔒
🔒
REAL OADesign an In-Memory File System
DesignTrees
PREMIUM
🔒
🔒
REAL OAStock Buy Sell with Cooldown
DPGreedy
PREMIUM
Live demo — auto-rotating
UTF-8100%oahelper.in