foo.c: In function 'main':
foo.c:7:23: error: expected ';' before '\U0000ff0cy'
    7 |         x=a+b>c && c++ ，y=a || b++ || c++;
      |                       ^~~~
      |                       ;
foo.c:6:17: warning: unused variable 'z' [-Wunused-variable]
    6 |         int x,y,z;
      |                 ^
foo.c:6:15: warning: unused variable 'y' [-Wunused-variable]
    6 |         int x,y,z;
      |               ^
foo.c:6:13: warning: variable 'x' set but not used [-Wunused-but-set-variable]
    6 |         int x,y,z;
      |             ^

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