foo.c: In function 'main':
foo.c:32:22: warning: 'z' may be used uninitialized [-Wmaybe-uninitialized]
   32 |         x = x / z; y = y / z;
      |                    ~~^~~~~~~
foo.c:7:14: note: 'z' was declared here
    7 |     int x, y,z;
      |              ^

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