foo.c: In function 'main':
foo.c:7:13: error: conflicting types for 's'; have 'int[10]'
    7 |         int s[10]={0};
      |             ^
foo.c:6:21: note: previous definition of 's' with type 'int'
    6 |         int y=1,z=0,s=0;
      |                     ^
foo.c:7:13: warning: unused variable 's' [-Wunused-variable]
    7 |         int s[10]={0};
      |             ^

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