foo.c: In function 'max':
foo.c:6:25: warning: 'sizeof' on array function parameter 'c' will return size of 'int *' [-Wsizeof-array-argument]
    6 |         for(j=0;j<sizeof(c)/sizeof(c[0]);j++){
      |                         ^
foo.c:3:13: note: declared here
    3 | int max(int c[]){
      |         ~~~~^~~
foo.c: In function 'z':
foo.c:17:23: warning: 'sizeof' on array function parameter 'a' will return size of 'int *' [-Wsizeof-array-argument]
   17 |         int len=sizeof(a)/sizeof(a[0]);
      |                       ^
foo.c:15:11: note: declared here
   15 | int z(int a[]){
      |       ~~~~^~~
foo.c:19:13: warning: unused variable 't' [-Wunused-variable]
   19 |         int t;
      |             ^

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