/in/foo.c: In function 'main':
/in/foo.c:25:9: warning: array subscript 5 is above array bounds of 'int[4]' [-Warray-bounds]
   25 |         printf("%d",a[c]);
      |         ^~~~~~~~~~~~~~~~~
/in/foo.c:5:13: note: while referencing 'a'
    5 |         int a[4];
      |             ^