Panel-ready C++ interview set questions for freshers and experienced developers. Practice at Coding Cadre in Faridabad, or Online from Delhi NCR.
Stack objects die when the scope ends and are fast.
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Releasing resources the object owns when it goes out of scope.
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vector is dynamic size on the heap
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A null-terminated const char pointer for C APIs.
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Prefer types whose members manage themselves so you write no special destructor or copy ops.
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A declaration introduces a name
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Documenting invariants in debug builds that abort on violation.
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The size in bytes of an object or type including padding.
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Reading or writing past array bounds is UB and can crash or appear to work.
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Static links code into the binary at build time.
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Overload operators only when meaning is obvious like arithmetic types.
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Resource Acquisition Is Initialization ties resource lifetime to object lifetime.
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A typed null pointer constant safer than 0 or NULL.
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It preallocates capacity without changing size.
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A simple two-value aggregate used by maps and algorithms.
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Sharing interfaces and behavior via base classes.
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Memory allocated with new[].
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A single compiled .cpp after preprocessing.
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The end iterator.
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The compiler picks the best matching function among candidates.
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