foo.c: In function 'main':
foo.c:40:45: warning: unused variable 'pas' [-Wunused-variable]
   40 |         int i,k,n,couts=0,temk,temn,ji=0,we,pas;
      |                                             ^~~
foo.c:40:42: warning: unused variable 'we' [-Wunused-variable]
   40 |         int i,k,n,couts=0,temk,temn,ji=0,we,pas;
      |                                          ^~
foo.c:40:37: warning: unused variable 'ji' [-Wunused-variable]
   40 |         int i,k,n,couts=0,temk,temn,ji=0,we,pas;
      |                                     ^~
foo.c:40:32: warning: unused variable 'temn' [-Wunused-variable]
   40 |         int i,k,n,couts=0,temk,temn,ji=0,we,pas;
      |                                ^~~~
foo.c:40:27: warning: unused variable 'temk' [-Wunused-variable]
   40 |         int i,k,n,couts=0,temk,temn,ji=0,we,pas;
      |                           ^~~~
foo.c:40:19: warning: unused variable 'couts' [-Wunused-variable]
   40 |         int i,k,n,couts=0,temk,temn,ji=0,we,pas;
      |                   ^~~~~
foo.c:40:15: warning: variable 'k' set but not used [-Wunused-but-set-variable]
   40 |         int i,k,n,couts=0,temk,temn,ji=0,we,pas;
      |               ^
foo.c: In function 'pdjo':
foo.c:35:16: warning: 'o' may be used uninitialized [-Wmaybe-uninitialized]
   35 |         return o;
      |                ^
foo.c:25:13: note: 'o' was declared here
   25 |         int o;//1偶数，0奇数
      |             ^

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