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Top 50 c++ Interview Questions

The most frequently asked c++ questions across all roles and companies, ranked by real interview frequency. Updated daily.

50questions
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64companies covered
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1
CodingStart here. 38 questions · ~746 min
In-Place Linked List ReverseEasy
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Recently asked

Reverse a singly linked device-event list in place using constant extra memory.

Linked Listsc++AlgorithmsLG ElectronicsSnapPine Labs
Move and Copy ConstructorsMedium
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Simulate deep-copy and ownership-transfer semantics for mutable buffers while preserving independent state after later mutations.

c++LuxoftLLuxoft Singapore
Implement a Smart PointerMedium
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Implement shared ownership with reference counting, aliasing, release, and deterministic object cleanup.

abstractionData Structuresc++Aurora InnovationAlign Technology
Find a String in a StringMedium
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Find the first occurrence of a pattern in PlayStation text using KMP string matching.

c++PlayStation
Linux File OperationsEasy
Practice
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Generate safe Linux cp or mv commands for files and directories, including recursive copying and shell-safe path quoting.

bashCodingDevOpsFord Motor
Print Hello With EscapesEasy
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Implement a zero-argument function that returns exactly Hello! followed by one newline.

Codingbasicsc++HHudson River Trading
Debug std::mutex UsageHard
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Recently asked

Identify lock leaks, unsafe lock ordering, exception risks, and data races in Citadel's OrderBook implementation.

code analysisclean codec++Citadel
Check the Second BitEasy
Practice
Recently asked

Use a bit mask to determine whether bit position 1 of a Siemens Healthineers scan value is set.

Bit Manipulationc++Siemens Healthineers
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2
Technical Fundamentals3 questions · ~59 min
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3
Behavioral & Leadership3 questions · ~59 min
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4
Security & Infrastructure4 questions · ~79 min
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5
More topics2 questions · ~39 min
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