QA – Placement Quizzes | SP Contest 2 | Question 9

What will be the output of the below C++ program?

#include<iostream>
using namespace std;

int main()
{
    int a[] = {10,20,30,40,50};

    cout<<(*(&a+1)-a);

    return 0;
}

(A) 10
(B) 0x7ffc7185f754
(C) 50
(D) 5


Answer: (D)

Explanation: Refer to method 2 of this post: https://www.geeksforgeeks.org/how-to-find-size-of-array-in-cc-without-using-sizeof-operator/

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