Question

Which of the following is a valid initialization for the variable size when declaring the following array:

int test_array[size];

Group of answer choices

int size = 12;

double size = 12;

const int size = 12;

int size = 0;

Answer 1

we cannot create a array of size double, the type of the size should always be int, it can be const int , int of size 0 as well.

so the answer is option A,C,D

#include <bits/stdc++.h>

using namespace std;

int main()

{

    int size1 = 12;

    double size2 = 12;

    const int size3 = 12;

    int size4 = 0;

    int a[size1];

    int b[size2];

    int c[size3];

    int d[size4];

    return 0;

}

output: