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Programming and Data Structures · Programming in C
Official IIT answer key · IIT Madras · Audited Aug 2026
GATE CSE 2019 Q24 · NAT · 1 mark
#include <stdio.h>
int main(){
int arr[]={1,2,3,4,5,6,7,8,9,0,1,2,5}, *ip=arr+4;
printf("%d
", ip[1]);
return 0;
}
The number that will be displayed on execution of the program 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 C program: #include int main() int arr[]=1,2,3,4,5,6,7,8,9,0,1,2,5, *ip=arr+4; printf("%d ", ip[1]); return 0; The number that will be displayed on execution of the program is …
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Independent practice explanation verified by the GateAI team. GATE is conducted by the IITs; question text follows the official paper.