foo.c: In function 'main':
foo.c:9:13: error: 'i' undeclared (first use in this function)
    9 |         for(i=0;i<10;i++)
      |             ^
foo.c:9:13: note: each undeclared identifier is reported only once for each function it appears in
foo.c:28:23: error: expected ';' before 'return'
   28 |         printf("%d",z)
      |                       ^
      |                       ;
   29 |         return 0;
      |         ~~~~~~         
foo.c:34:1: error: expected declaration or statement at end of input
   34 | }
      | ^

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