c language arrangement

#include <stdio.h>
int main(void) {
    char ar[] = {"a","b","c","d","e","f","/0"};
    printf("%s\n", ar);
    return 0;
}

I wrote it like this In Visual Studio, "You cannot initialize an entity in the "char *" format using a value in the "const char *" format," and when I turned on the code executor, the original abcdef was supposed to come out, but only a came out. This is language c. Please help me