Question

How to use macro replacement is to define a constant in C

Answer 1

#include <stdio.h>

#define SIZE 3

int main(void)
{
    int arr[SIZE];
    
    arr[0] = 1;
    arr[1] = 3;
    arr[2] = 9;
    
    for (int i = 0; i < SIZE; i++)
        printf("%d\n", arr[i]);
    
    return 0;
}
   
/*
run:

1
3
9

*/

 

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