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Programming and Data Structures · Programming in C
Official IIT answer key · IIT Bombay · Audited Aug 2026
GATE CSE 2021 Set 1 Q48 · NAT · 2 marks
int SimpleFunction(int Y[], int n, int x)
{
int total = Y[0], loopIndex;
for (loopIndex = 1; loopIndex <= n - 1; loopIndex++)
total = x * total + Y[loopIndex];
return total;
}
Let Z be an array of 10 elements with Z[i]=1, for all i such that 0≤i≤9. The value returned by SimpleFunction(Z, 10, 2) is ________.Key concept
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Topic notes
In GATE CS, Programming in C is tested extensively through rigorous code tracing, pointer mechanics, and fundamental semantics rather than high-level syntax trivia. Questions emphasize pointer arithmetic and multidimensional array decay, storage classes (especially static local variables), evaluation order, side effects of increment/decrement operators, parameter passing mechanisms (pass-by-value vs pass-by-reference), and recursive program state tracking. The topic features a nearly balanced split between NAT and MCQ items across 1-mark and 2-mark categories, demanding precise, bug-free execution traces without a compiler.
Full Programming in C guide →Consider the following ANSI C function: int SimpleFunction(int Y[], int n, int x) int total = Y[0], loopIndex; for (loopIndex = 1; loopIndex Let Z be an array of 10 elements with Z[i]=1, for all i such that 0 i 9. The value returned by SimpleFunction(Z, 10, 2) is …
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