Expected identifier or ‘(’ before ‘~’ token

The code you show us doesn't show the error you describe.
If I run your code through an online IDE:

#include<stdio.h>
#include<stdlib.h>


int main()
{
        int Luckynumbers[] = {6,4,98,97,106,54,54};
        int i;

        for(i=0; i<=5; i++)
        {
                printf("%d\n",Luckynumbers[i]);
        }
        return 0;
}

And run it, I get the expected output:

6
4
98
97
106
54


...Program finished with exit code 0
Press ENTER to exit console.

I suspect that you compiling the wrong file!